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This repository is a comprehensive resource designed to empower developers with access to powerful third-party services without spending a dime.\n\nWhether you're building an MVP for your startup, learning to code, or hacking on a side project, these APIs offer a wide range of capabilities - from real-time collaboration and AI-powered chatbots to social media integrations and weather data.\n\nThis collection is the result of dedicated research by our API Fellows, who explored, tested, and documented these APIs to make them easily accessible for themselves and the broader developer community. Dive in and discover tools that can elevate your next project!\n\n\n## How to Contribute\n\nWe welcome contributions from the community! Here's how you can help:\n\n1. **Fork** this repository\n2. **Add** your API to the appropriate section following our format\n3. **Ensure** the API is free to use (with or without registration)\n4. **Test** that the API is working and accessible\n5. **Submit** a pull request with a clear description\n\n### Contribution Guidelines\n- APIs must be publicly accessible and free to use\n- Include accurate descriptions and authentication requirements\n- Maintain the table format for consistency\n- Verify all links are working before submitting\n\n---\n\n## Project Enhancers\n\nThese APIs can significantly enhance your projects and provide professional-grade features:\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Liveblocks](https://liveblocks.io) | \u003cdetails\u003e\u003csummary\u003eReal-time collaboration infrastructure for building live cursors, comments, presence indicators, and collaborative editing features\u003c/summary\u003ePerfect for building collaborative whiteboards, document editors, design tools, or any app requiring real-time user interaction. Provides WebSocket connections, conflict resolution, and user presence out of the box.\u003c/details\u003e | API Key | Easy |\n| [PusherKit](https://pusher.com) | \u003cdetails\u003e\u003csummary\u003eReal-time messaging and live updates for web and mobile applications\u003c/summary\u003eAdd real-time chat, live notifications, activity feeds, and collaborative features to your apps. Great for building messaging apps, live dashboards, and real-time games.\u003c/details\u003e | API Key | Easy |\n| [OpenWeatherMap](https://openweathermap.org/api) | \u003cdetails\u003e\u003csummary\u003eWeather data and forecasts\u003c/summary\u003eGet current weather, forecast, and historical weather data. Useful for weather dashboards, travel apps, or agricultural apps. Provides data by city, coordinates, and zip.\u003c/details\u003e | API Key | Easy |\n| [News API](https://newsapi.org) | \u003cdetails\u003e\u003csummary\u003eGet latest news articles from various sources\u003c/summary\u003eBuild news aggregators, sentiment analysis tools, or topic-based feed readers. Fetch breaking news headlines, articles by category, or specific publications worldwide.\u003c/details\u003e | API Key | Easy |\n| [JokeAPI](https://v2.jokeapi.dev/) | \u003cdetails\u003e\u003csummary\u003eProgramming and general jokes\u003c/summary\u003eRetrieve jokes in categories like programming, puns, or dark humor. Can return single or two-part jokes. Great for entertainment bots and fun apps.\u003c/details\u003e | No | Easy |\n| [OpenAI API](https://openai.com/api/) | \u003cdetails\u003e\u003csummary\u003eAccess to GPT models for building AI-powered chatbots, content generation, and intelligent applications\u003c/summary\u003eBuild ChatGPT-like interfaces, content generators, code assistants, and smart automation tools. Includes text generation, image creation, and code completion capabilities.\u003c/details\u003e | API Key | Medium |\n| [Gemini API](https://ai.google.dev) | \u003cdetails\u003e\u003csummary\u003eGoogle’s powerful large language model API for AI chatbots, content generation, reasoning, and more\u003c/summary\u003eUse Gemini for building smart assistants, content generators, summarizers, and more. Supports text, image, and code input with Gemini Pro Vision. Accessible via Google AI Studio with a free tier.\u003c/details\u003e | API Key | Medium |\n| [GitHub API](https://docs.github.com/en/rest) | \u003cdetails\u003e\u003csummary\u003eComprehensive access to GitHub's features for building developer tools and integrations\u003c/summary\u003eCreate code portfolio sites, automated deployment tools, issue trackers, code analysis tools, and development dashboards. Access repositories, commits, issues, and user data.\u003c/details\u003e | OAuth/Token | Medium |\n| [Stripe API](https://stripe.com/docs/api) | \u003cdetails\u003e\u003csummary\u003eComplete payment processing solution for e-commerce and subscription applications\u003c/summary\u003eHandle payments, subscriptions, invoicing, and financial operations in your applications. Supports multiple payment methods and currencies with robust security.\u003c/details\u003e | API Key | Medium |\n| [Twilio API](https://www.twilio.com/docs/api) | \u003cdetails\u003e\u003csummary\u003eCommunication APIs for SMS, voice calls, video, and messaging features\u003c/summary\u003eAdd SMS notifications, voice calls, video conferencing, and WhatsApp messaging to your applications. Perfect for building communication platforms and notification systems.\u003c/details\u003e | API Key | Easy |\n| [Playroom Kit](https://docs.joinplayroom.com/) | \u003cdetails\u003e\u003csummary\u003eMultiplayer game development platform with real-time features\u003c/summary\u003eBuild multiplayer games with lobby systems, real-time state sync, voice chat, and player matching. Perfect for creating social games, party games, and collaborative gaming experiences.\u003c/details\u003e | API Key | Medium |\n| [Twitter API v2](https://developer.twitter.com/en/docs/twitter-api) | \u003cdetails\u003e\u003csummary\u003eSocial media automation, bot creation, and analytics platform\u003c/summary\u003eCreate Twitter bots, social media schedulers, sentiment analysis tools, and automated content systems. Build social listening platforms and engagement automation.\u003c/details\u003e | OAuth | Hard |\n| [Discord API](https://discord.com/developers/docs/intro) | \u003cdetails\u003e\u003csummary\u003eCommunity and gaming platform integration\u003c/summary\u003eBuild Discord bots, server management tools, community platforms, and gaming integrations. Create automated moderation, custom commands, and interactive bot experiences.\u003c/details\u003e | Bot Token | Medium |\n| [Clerk](https://clerk.com/docs) | \u003cdetails\u003e\u003csummary\u003eComplete user management and authentication platform\u003c/summary\u003eAdd sign-up, sign-in, user profiles, and session management with beautiful pre-built UI components. Includes social logins, MFA, and user organization features.\u003c/details\u003e | API Key | Easy |\n| [Supabase](https://supabase.com/docs/reference/api) | \u003cdetails\u003e\u003csummary\u003eBackend-as-a-Service with real-time database and authentication\u003c/summary\u003eBuild full-stack applications with instant APIs, real-time subscriptions, file storage, and authentication. PostgreSQL database with automatic REST and GraphQL APIs.\u003c/details\u003e | API Key | Medium |\n| [Algolia](https://www.algolia.com/doc/api-reference/) | \u003cdetails\u003e\u003csummary\u003ePowerful search and discovery platform\u003c/summary\u003eAdd instant search, autocomplete, and recommendation features to your applications. Perfect for e-commerce, documentation sites, and content discovery platforms.\u003c/details\u003e | API Key | Easy |\n| [Cloudinary](https://cloudinary.com/documentation/image_upload_api_reference) | \u003cdetails\u003e\u003csummary\u003eMedia management and optimization platform\u003c/summary\u003eUpload, transform, optimize, and deliver images and videos. Automatic format conversion, resizing, and CDN delivery for better performance.\u003c/details\u003e | API Key | Easy |\n| [Firebase](https://firebase.google.com/docs/reference/rest) | \u003cdetails\u003e\u003csummary\u003eGoogle's app development platform with real-time features\u003c/summary\u003eBuild web and mobile apps with real-time database, authentication, hosting, cloud functions, and push notifications. Complete backend solution.\u003c/details\u003e | API Key | Easy |\n| [Agora](https://docs.agora.io/en) | \u003cdetails\u003e\u003csummary\u003eReal-time voice and video communication platform\u003c/summary\u003eAdd live streaming, video calls, voice chat, and interactive broadcasting to your applications. Perfect for building social apps, live commerce, and virtual events.\u003c/details\u003e | API Key | Medium |\n| [Mapbox](https://docs.mapbox.com/api/) | \u003cdetails\u003e\u003csummary\u003eAdvanced mapping and location services\u003c/summary\u003eCreate custom interactive maps, navigation apps, and location-based features. Includes geocoding, routing, and beautiful map styling options.\u003c/details\u003e | API Key | Medium |\n| [Socket.IO](https://socket.io/docs/v4/) | \u003cdetails\u003e\u003csummary\u003eReal-time bidirectional event-based communication\u003c/summary\u003eBuild real-time applications like chat systems, collaborative editors, live dashboards, and multiplayer games with WebSocket connections.\u003c/details\u003e | None | Medium |\n| [Uploadcare](https://uploadcare.com/api-refs/rest-api/) | \u003cdetails\u003e\u003csummary\u003eFile uploading and processing platform\u003c/summary\u003eHandle file uploads, image processing, video encoding, and document conversion. Includes drag-and-drop widgets and automatic optimization.\u003c/details\u003e | API Key | Easy |\n| [Sanity](https://www.sanity.io/docs/http-api) | \u003cdetails\u003e\u003csummary\u003eHeadless CMS with real-time collaboration\u003c/summary\u003eBuild content management systems with real-time editing, structured content, and flexible APIs. Perfect for blogs, e-commerce, and content-driven applications.\u003c/details\u003e | API Key | Medium |\n| [Auth0](https://auth0.com/docs/api) | \u003cdetails\u003e\u003csummary\u003eIdentity and access management platform\u003c/summary\u003eImplement secure authentication, single sign-on, multi-factor authentication, and user management. Supports social logins and enterprise integrations.\u003c/details\u003e | API Key | Medium |\n| [Vercel](https://vercel.com/docs/rest-api) | \u003cdetails\u003e\u003csummary\u003eDeployment and hosting platform with serverless functions\u003c/summary\u003eDeploy applications, manage domains, and run serverless functions. Perfect for building JAMstack applications with automatic deployments.\u003c/details\u003e | API Key | Easy |\n| [Notion API](https://developers.notion.com/) | \u003cdetails\u003e\u003csummary\u003eWorkspace and productivity platform integration\u003c/summary\u003eBuild productivity tools, content management systems, and workflow automation. Access databases, pages, and blocks for creating custom Notion integrations.\u003c/details\u003e | OAuth | Medium |\n| [Slack API](https://api.slack.com/) | \u003cdetails\u003e\u003csummary\u003eTeam communication and workflow automation\u003c/summary\u003eCreate Slack bots, workflow automations, and team productivity tools. Build custom commands, notifications, and integrations for workplace efficiency.\u003c/details\u003e | OAuth | Medium |\n| [Airtable](https://airtable.com/api) | \u003cdetails\u003e\u003csummary\u003eFlexible database platform with spreadsheet interface\u003c/summary\u003eBuild applications with structured data, automated workflows, and collaborative features. Perfect for CRM systems, project management, and content organization.\u003c/details\u003e | API Key | Easy |\n| [Contentful](https://www.contentful.com/developers/docs/references/content-delivery-api/) | \u003cdetails\u003e\u003csummary\u003eHeadless CMS for content management and delivery\u003c/summary\u003eManage and deliver content across multiple platforms and devices. Build blogs, websites, and applications with structured content and media management.\u003c/details\u003e | API Key | Easy |\n| [MongoDB Atlas](https://docs.atlas.mongodb.com/api/) | \u003cdetails\u003e\u003csummary\u003eCloud database platform with flexible document storage\u003c/summary\u003eBuild applications with NoSQL database, full-text search, and analytics. Includes automatic scaling, backup, and security features.\u003c/details\u003e | API Key | Medium |\n| [PlanetScale](https://planetscale.com/docs/reference/planetscale-api) | \u003cdetails\u003e\u003csummary\u003eServerless MySQL database platform\u003c/summary\u003eBuild applications with branching databases, automatic scaling, and zero-downtime schema changes. Perfect for modern web applications.\u003c/details\u003e | API Key | Medium |\n| [Neon](https://neon.tech/docs/reference/api-reference) | \u003cdetails\u003e\u003csummary\u003eServerless PostgreSQL database with branching\u003c/summary\u003eBuild applications with modern PostgreSQL features, automatic scaling, and database branching for development workflows.\u003c/details\u003e | API Key | Medium |\n| [Railway](https://docs.railway.app/reference/public-api) | \u003cdetails\u003e\u003csummary\u003eInfrastructure platform for deploying applications\u003c/summary\u003eDeploy and manage applications, databases, and services with automatic scaling and built-in monitoring. Perfect for full-stack applications.\u003c/details\u003e | API Key | Easy |\n| [Linear](https://developers.linear.app/docs/graphql/working-with-the-graphql-api) | \u003cdetails\u003e\u003csummary\u003eProject management and issue tracking platform\u003c/summary\u003eBuild productivity tools, project dashboards, and workflow automation. Integrate with development workflows and team management systems.\u003c/details\u003e | API Key | Medium |\n| [Medium RSS to JSON](https://api.rss2json.com/v1/api.json?rss_url=https://medium.com/feed/@username) | Fetch Medium blog posts using RSS feed parsed as JSON | Not Required | Easy |\n| [Deepgram](https://deepgram.com) | \u003cdetails\u003e\u003csummary\u003eHigh-accuracy speech-to-text API for real-time and recorded audio\u003c/summary\u003eTranscribe voice and audio with advanced ML. Great for voice-enabled apps, transcripts, and call intelligence. Free tier available.\u003c/details\u003e | API Key | Medium |\n| [OCR.space](https://ocr.space/ocrapi) | \u003cdetails\u003e\u003csummary\u003eFree Optical Character Recognition (OCR) API\u003c/summary\u003eExtract text from images, scanned PDFs, or documents. Great for invoice scanners, academic tools, and ID verifications.\u003c/details\u003e | API Key | Easy |\n| [Unsplash](https://unsplash.com/developers) | \u003cdetails\u003e\u003csummary\u003eFree high-quality stock photos API\u003c/summary\u003eIntegrate royalty-free images into websites, blogs, e-commerce, or social content — attribution required.\u003c/details\u003e | API Key | Easy |\n| [IPinfo](https://ipinfo.io) | \u003cdetails\u003e\u003csummary\u003eIP geolocation and intelligence API\u003c/summary\u003eDetect country, city, ISP, and more based on IP address — ideal for personalization, analytics, or content control.\u003c/details\u003e | API Key | Easy |\n| [LibreTranslate](https://libretranslate.com/docs/) | \u003cdetails\u003e\u003csummary\u003eFree and open-source translation API\u003c/summary\u003eTranslate text between major languages without any usage caps — no API key required. Self-hostable.\u003c/details\u003e | None | Easy |\n| [Shields.io](https://shields.io/) | \u003cdetails\u003e\u003csummary\u003eCreate dynamic badges for GitHub, APIs, or metrics\u003c/summary\u003eGreat for displaying status, version, uptime, or custom metrics in projects and dashboards.\u003c/details\u003e | None | Easy |\n| [DummyJSON](https://dummyjson.com/) | \u003cdetails\u003e\u003csummary\u003eFake API for e-commerce and user testing\u003c/summary\u003eUse fake users, products, carts, and comments to prototype UI/UX designs and mock APIs easily.\u003c/details\u003e | None | Easy |\n| [Open-Meteo](https://open-meteo.com/en/docs) | \u003cdetails\u003e\u003csummary\u003eFree weather forecast API\u003c/summary\u003eWeather data with no API key, great for travel, agriculture, or dashboard use cases.\u003c/details\u003e | None | Easy |\n| [Uptime Robot](https://uptimerobot.com/api/) | \u003cdetails\u003e\u003csummary\u003eWebsite and API monitoring with downtime alerts\u003c/summary\u003eContinuously check the status of websites and services. Get real-time alerts when endpoints are down, measure performance, and integrate with dashboards and status pages. Great for DevOps, SaaS apps, and backend health monitoring.\u003c/details\u003e | API Key | Easy |\n\n\n## Popular Integrations\n\nMost requested APIs for common application features:\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Instagram Basic Display](https://developers.facebook.com/docs/instagram-basic-display-api) | \u003cdetails\u003e\u003csummary\u003eAccess user's Instagram content for building third-party Instagram applications\u003c/summary\u003eBuild Instagram analytics tools, content schedulers, photo galleries, and social media management platforms. Access user media, profile info, and basic insights.\u003c/details\u003e | OAuth | Medium |\n| [YouTube Data API](https://developers.google.com/youtube/v3) | \u003cdetails\u003e\u003csummary\u003eAccess YouTube content, channels, playlists, and video data\u003c/summary\u003eBuild video portfolio sites, content management tools, analytics dashboards, and YouTube integrations. Search videos, manage playlists, and access channel statistics.\u003c/details\u003e | API Key | Easy |\n| [Spotify Web API](https://developer.spotify.com/documentation/web-api/) | \u003cdetails\u003e\u003csummary\u003eAccess Spotify's music catalog, user playlists, and playback features\u003c/summary\u003eCreate music recommendation engines, playlist managers, music discovery apps, and audio analysis tools. Control playback and access user's music data.\u003c/details\u003e | OAuth | Medium |\n| [Google Maps API](https://developers.google.com/maps) | \u003cdetails\u003e\u003csummary\u003eComprehensive mapping, geocoding, and location services\u003c/summary\u003eAdd interactive maps, location search, directions, and geolocation features to your applications. Perfect for delivery apps, store locators, and travel applications.\u003c/details\u003e | API Key | Easy |\n| [SendGrid API](https://docs.sendgrid.com/api-reference) | \u003cdetails\u003e\u003csummary\u003eReliable email delivery service for transactional and marketing emails\u003c/summary\u003eSend welcome emails, password resets, newsletters, and notifications. Includes email analytics, template management, and delivery optimization.\u003c/details\u003e | API Key | Easy |\n| [GitHub API](https://docs.github.com/en/rest) | \u003cdetails\u003e\u003csummary\u003eComprehensive access to GitHub's features for building developer tools and integrations\u003c/summary\u003eCreate code portfolio sites, automated deployment tools, issue trackers, code analysis tools, and development dashboards. Access repositories, commits, issues, and user data.\u003c/details\u003e | OAuth/Token | Medium |\n| [Stripe API](https://stripe.com/docs/api) | \u003cdetails\u003e\u003csummary\u003eComplete payment processing solution for e-commerce and subscription applications\u003c/summary\u003eHandle payments, subscriptions, invoicing, and financial operations in your applications. Supports multiple payment methods and currencies with robust security.\u003c/details\u003e | API Key | Medium |\n---\n\n## Index\n\n- [🚀 **Project Enhancers**](#project-enhancers) \n- [🎯 **Popular Integrations**](#popular-integrations) \n- [🔒 **Authentication \u0026 Authorization**](#authentication--authorization)\n- [🤖 **Artificial Intelligence \u0026 Machine Learning**](#artificial-intelligence--machine-learning)\n- [🐾 **Animals**](#animals)\n- [🎌 **Anime \u0026 Manga**](#anime--manga)\n- [🛡️ **Anti-Malware \u0026 Security**](#anti-malware--security)\n- [🎨 **Art \u0026 Design**](#art--design)\n- [⛓️ **Blockchain \u0026 Cryptocurrency**](#blockchain--cryptocurrency)\n- [📚 **Books \u0026 Literature**](#books--literature)\n- [💼 **Business \u0026 Finance**](#business--finance)\n- [📅 **Calendar \u0026 Events**](#calendar--events)\n- [☁️ **Cloud Storage \u0026 File Sharing**](#cloud-storage--file-sharing)\n- [🔧 **Development \u0026 Testing**](#development--testing)\n- [📖 **Dictionaries \u0026 Language**](#dictionaries--language)\n- [📧 **Email \u0026 Communication**](#email--communication)\n- [🎬 **Entertainment \u0026 Media**](#entertainment--media)\n- [🌍 **Environment \u0026 Weather**](#environment--weather)\n- [🏦 **Finance \u0026 Banking**](#finance--banking)\n- [🍕 **Food \u0026 Drink**](#food--drink)\n- [🎮 **Games \u0026 Comics**](#games--comics)\n- [📍 **Geocoding \u0026 Maps**](#geocoding--maps)\n- [🏛️ **Government \u0026 Public Data**](#government--public-data)\n- [⚕️ **Health \u0026 Medical**](#health--medical)\n- [💼 **Jobs \u0026 Careers**](#jobs--careers)\n- [🎵 **Music \u0026 Audio**](#music--audio)\n- [📰 **News \u0026 Journalism**](#news--journalism)\n- [📊 **Open Data \u0026 Analytics**](#open-data--analytics)\n- [🔓 **Open Source Projects**](#open-source-projects)\n- [📱 **Phone \u0026 SMS**](#phone--sms)\n- [📸 **Photography \u0026 Images**](#photography--images)\n- [💻 **Programming \u0026 Code**](#programming--code)\n- [🔬 **Science \u0026 Mathematics**](#science--mathematics)\n- [🛒 **Shopping \u0026 E-commerce**](#shopping--e-commerce)\n- [👥 **Social Media \u0026 Networking**](#social-media--networking)\n- [⚽ **Sports \u0026 Fitness**](#sports--fitness)\n- [🧪 **Test Data \u0026 Mock APIs**](#test-data--mock-apis)\n- [📝 **Text Analysis \u0026 Processing**](#text-analysis--processing)\n- [📦 **Tracking \u0026 Logistics**](#tracking--logistics)\n- [🚗 **Transportation \u0026 Travel**](#transportation--travel)\n- [🔗 **URL Shorteners**](#url-shorteners)\n- [🚙 **Vehicle Information**](#vehicle-information)\n- [🎥 **Video \u0026 Streaming**](#video--streaming)\n- [🧾 **QR \u0026 Barcode Generation**](#qr--barcode-generation)\n\n---\n\n\n## Authentication \u0026 Authorization\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Auth0](https://auth0.com/docs/api) | \u003cdetails\u003e\u003csummary\u003eComplete identity and access management platform\u003c/summary\u003eImplement user authentication, single sign-on, multi-factor authentication, and user management in your applications.\u003c/details\u003e | API Key | Medium |\n| [Firebase Auth](https://firebase.google.com/docs/auth) | \u003cdetails\u003e\u003csummary\u003eGoogle's authentication service with multiple sign-in methods\u003c/summary\u003eAdd email/password, social logins, phone authentication, and anonymous authentication to your apps.\u003c/details\u003e | API Key | Easy |\n| [Okta](https://developer.okta.com/docs/reference/) | \u003cdetails\u003e\u003csummary\u003eEnterprise-grade identity and access management\u003c/summary\u003eSecure your applications with advanced authentication, authorization, and user management capabilities.\u003c/details\u003e | API Key | Hard |\n| [Magic.link](https://magic.link/docs/introduction/introduction) | \u003cdetails\u003e\u003csummary\u003ePasswordless authentication using magic links\u003c/summary\u003eEnable secure login with just an email address — no passwords required. Great for Web3, SaaS, and onboarding flows.\u003c/details\u003e | API Key | Easy |\n| [SuperTokens](https://supertokens.com/docs/community/introduction) | \u003cdetails\u003e\u003csummary\u003eOpen-source authentication with prebuilt UI and backend\u003c/summary\u003eIncludes email/password, social login, and session management. Easily customizable and self-hostable.\u003c/details\u003e | None | Medium |\n| [Keycloak](https://www.keycloak.org/docs-api/15.0/rest-api/index.html) | \u003cdetails\u003e\u003csummary\u003eOpen-source identity and access management\u003c/summary\u003eSupports SSO, MFA, and OAuth2 login — widely used in modern apps and microservices.\u003c/details\u003e | Token | Medium |\n| [Stytch](https://stytch.com/docs) | \u003cdetails\u003e\u003csummary\u003ePasswordless authentication API\u003c/summary\u003eOffers email magic links, SMS OTPs, and OAuth integration for modern apps.\u003c/details\u003e | API Key | Easy |\n| [Clerk API](https://clerk.dev/docs/reference/backend-api) | \u003cdetails\u003e\u003csummary\u003eUser auth, account management \u0026 sessions for modern web apps\u003c/summary\u003eIntegrates seamlessly with frontend frameworks like React, Next.js, and more.\u003c/details\u003e | API Key | Easy |\n\n\n---\n\n## Artificial Intelligence \u0026 Machine Learning\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Hugging Face](https://huggingface.co/docs/api-inference/index) | \u003cdetails\u003e\u003csummary\u003eAccess to thousands of machine learning models for NLP, computer vision, and audio\u003c/summary\u003eUse pre-trained models for text classification, image recognition, language translation, and more without building models from scratch.\u003c/details\u003e | API Key | Easy |\n| [Hugging Face Inference API](https://huggingface.co/inference-api) | \u003cdetails\u003e\u003csummary\u003eRun ML models via API\u003c/summary\u003eRun NLP, image, and audio ML models via simple HTTP calls. Use pretrained models from Hugging Face without any infra setup.\u003c/details\u003e | API Key | Medium |\n| [Cohere](https://docs.cohere.com/docs) | \u003cdetails\u003e\u003csummary\u003eNatural language processing API for text generation, classification, and embeddings\u003c/summary\u003eBuild chatbots, content generators, semantic search, and text analysis applications with powerful language models.\u003c/details\u003e | API Key | Easy |\n| [Anthropic Claude](https://docs.anthropic.com/claude/reference/) | \u003cdetails\u003e\u003csummary\u003eConversational AI models with long context windows and reasoning capabilities\u003c/summary\u003eBuild advanced AI assistants, content generation tools, and knowledge systems with Claude's context-aware responses and nuanced text understanding.\u003c/details\u003e | API Key | Medium |\n| [AssemblyAI](https://www.assemblyai.com/docs/) | \u003cdetails\u003e\u003csummary\u003eSpeech-to-text and audio intelligence API\u003c/summary\u003eTranscribe audio with high accuracy, detect sentiment, identify speakers, and extract key insights from audio content.\u003c/details\u003e | API Key | Easy |\n| [Clarifai](https://docs.clarifai.com/) | \u003cdetails\u003e\u003csummary\u003eComputer vision and natural language processing platform\u003c/summary\u003eAdd image recognition, video analysis, text processing, and custom model training to your applications.\u003c/details\u003e | API Key | Medium |\n| [Deepgram Speech-to-Text API](https://deepgram.com/) | \u003cdetails\u003e\u003csummary\u003eReal‑time Speech Recognition\u003c/summary\u003eHigh-accuracy real-time speech-to-text transcription with support for diarization, language detection, and more.\u003c/details\u003e | API Key | Medium |\n| [Deepgram Text-to-Speech API](https://play.ht/blog/deepgram-text-to-speech-python/) | \u003cdetails\u003e\u003csummary\u003eRealistic Text-to-Speech\u003c/summary\u003eConverts text into high-quality, natural-sounding audio using Deepgram’s TTS models.\u003c/details\u003e | API Key | Medium |\n| [Groq API](https://console.groq.com/docs) | \u003cdetails\u003e\u003csummary\u003eUltra-fast inference API\u003c/summary\u003eRuns LLMs (e.g., LLaMA 3) at extremely low latency using Groq's custom hardware accelerators.\u003c/details\u003e | API Key | Medium |\n| [Together AI API](https://docs.together.ai/docs/welcome) | \u003cdetails\u003e\u003csummary\u003eInference for open models\u003c/summary\u003eUnified endpoint to access and run open-source LLMs like Mixtral, GPT-JT, LLaMA 3 with pay-as-you-go pricing.\u003c/details\u003e | API Key | Medium |\n| [Gemini API (Google AI Studio)](https://aistudio.google.com) | \u003cdetails\u003e\u003csummary\u003eGenerative AI for text content, similar to ChatGPT\u003c/summary\u003eSupports text generation via Google’s Gemini models. Easily accessible with API key from AI Studio dashboard.\u003c/details\u003e | API Key | Medium |\n| [OpenRouter](https://openrouter.ai/docs) | \u003cdetails\u003e\u003csummary\u003eUnified API for accessing multiple LLMs\u003c/summary\u003eQuery OpenAI, Anthropic, Mistral, Meta, and more through a single API endpoint — perfect for experimenting and benchmarking.\u003c/details\u003e | API Key | Easy |\n| [Gemini Pro (Google AI)](https://makersuite.google.com/) | \u003cdetails\u003e\u003csummary\u003eAdvanced generative AI platform by Google\u003c/summary\u003eUse Gemini Flash and Gemini 1.5 Pro for tasks like text generation, scraping automation, summarization, and AI-powered content workflows. Ideal for NLP, intelligent agents, and structured data extraction.\u003c/details\u003e | API Key | Medium |\n| [DeepAI](https://deepai.org/) | \u003cdetails\u003e\u003csummary\u003eWide range of AI APIs for vision and text\u003c/summary\u003eFree APIs for text summarization, sentiment analysis, facial recognition, image colorization, and more. Perfect for prototyping AI use cases without model training.\u003c/details\u003e | API Key | Easy |\n| [Roboflow](https://docs.roboflow.com/inference) | \u003cdetails\u003e\u003csummary\u003eComputer vision API for object detection, classification, and segmentation\u003c/summary\u003eDeploy custom-trained models or use public ones for tasks like face mask detection, waste sorting, and number plate recognition directly via API.\u003c/details\u003e | API Key | Easy |\n| [GroqCloud](https://console.groq.com/docs/overview) | \u003cdetails\u003e\u003csummary\u003eGroqCloud is a free-to-start, high-speed public API platform that offers access to open-source LLMs with ultra-low latency. \u003c/summary\u003eYou can use GroqCloud by calling its OpenAI-compatible API endpoints with your API key to run fast, real-time inference on open-source LLMs like LLaMA and Mixtral.\u003c/details\u003e | API Key | Easy |\n| [ElevenLabs API](https://docs.elevenlabs.io/) | \u003cdetails\u003e\u003csummary\u003eText-to-speech API offering lifelike voice synthesis with multiple voices, emotions, and languages\u003c/summary\u003eCreate natural-sounding voiceovers, audiobooks, and voice interfaces with advanced AI voice synthesis technology.\u003c/details\u003e | API Key | Medium |\n| [DeepL](https://www.deepl.com/docs-api) | \u003cdetails\u003e\u003csummary\u003eLanguage translation API\u003c/summary\u003eAccurate and fast machine translation for text and documents in multiple languages, with support for glossaries and document translation.\u003c/details\u003e | API Key | Easy |\n| [DeepAI](https://deepai.org/) | \u003cdetails\u003e\u003csummary\u003eAI-powered APIs for image recognition, text summarization, and more\u003c/summary\u003eFree and paid APIs for image recognition, NSFW detection, text analysis, and style transfer.\u003c/details\u003e | API Key | Easy |\n| [Stability AI](https://platform.stability.ai/docs/api-reference) | \u003cdetails\u003e\u003csummary\u003eText-to-image generation API using Stable Diffusion\u003c/summary\u003eCreate stunning visuals from text prompts — great for creative AI projects.\u003c/details\u003e | API Key | Medium |\n| [Mistral AI](https://docs.mistral.ai/) | \u003cdetails\u003e\u003csummary\u003eFast, open-weight LLMs for text generation\u003c/summary\u003eUse Mistral 7B, Mixtral, and others for chatbots, coding tools, and reasoning apps.\u003c/details\u003e | API Key | Easy |\n| [Replicate](https://replicate.com/docs) | \u003cdetails\u003e\u003csummary\u003eRun open-source ML models via API\u003c/summary\u003eUse pre-trained models for audio, vision, language, and more. Includes real-time inference support.\u003c/details\u003e | Token | Medium |\n\n---\n\n## Animals\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Dog API](https://dog.ceo/dog-api/) | \u003cdetails\u003e\u003csummary\u003eCollection of dog images by breed\u003c/summary\u003eGet random dog images, images by breed, and breed information for pet applications or fun projects.\u003c/details\u003e | None | Easy |\n| [Cat API](https://thecatapi.com/) | \u003cdetails\u003e\u003csummary\u003eCat images, facts, and breed information\u003c/summary\u003eAccess thousands of cat images, breed data, and fun cat facts for pet-related applications.\u003c/details\u003e | Optional | Easy |\n| [Cat Facts API](https://catfact.ninja/) | \u003cdetails\u003e\u003csummary\u003eFun cat facts\u003c/summary\u003eProvides random cat facts for trivia apps, games, or animal-related content.\u003c/details\u003e | None | Easy |\n| [Random Fox](https://randomfox.ca/floof/) | \u003cdetails\u003e\u003csummary\u003eRandom fox images\u003c/summary\u003eGet cute fox images for your applications or just for fun!\u003c/details\u003e | None | Easy |\n| [Random Duck](https://random-d.uk/api) | \u003cdetails\u003e\u003csummary\u003eRandom duck images\u003c/summary\u003eGet random duck images or GIFs.\u003c/details\u003e | None | Easy |\n| [Bird API](https://xeno-canto.org/api) | \u003cdetails\u003e\u003csummary\u003eBird sounds and taxonomy data\u003c/summary\u003eSearch and retrieve bird song recordings, metadata, and taxonomy from a global collection.\u003c/details\u003e | None | Medium |\n| [Shibe Online API](http://shibe.online/) | \u003cdetails\u003e\u003csummary\u003eRandom pictures of shibes, cats, and birds\u003c/summary\u003eGreat for pet-themed apps and generating cute animal images randomly.\u003c/details\u003e | None | Easy |\n| [The Dog API](https://thedogapi.com/) | \u003cdetails\u003e\u003csummary\u003eComprehensive dog breed database with images and information\u003c/summary\u003eAccess extensive breed data, search by breed, temperament, and more. Includes image upload and voting features.\u003c/details\u003e | API Key | Easy |\n| [Cat Ninjas API](https://catninjas.com/api) | \u003cdetails\u003e\u003csummary\u003eRandom cat images with ninja themes\u003c/summary\u003eGet random cat images with ninja-themed content, perfect for fun applications and cat lovers who enjoy martial arts themes.\u003c/details\u003e | None | Easy |\n| [Capy](https://capy.lol/) | \u003cdetails\u003e\u003csummary\u003eCapybara Images\u003c/summary\u003ecapybara-api is a sweet, cute, fast API to get a whole bunch of images or a random image of a capybara\u003c/details\u003e| None     | Easy       |   \n| [Petfinder API](https://www.petfinder.com/developers/) | \u003cdetails\u003e\u003csummary\u003eFind adoptable pets, shelters, and animal welfare orgs\u003c/summary\u003eUse for pet adoption platforms and animal search directories.\u003c/details\u003e | API Key | Medium |\n| [CATAAS](https://cataas.com/#/) | \u003cdetails\u003e\u003csummary\u003eCat as a Service API for fun cat images with custom text\u003c/summary\u003ePerfect for testing image loads and having fun with memes.\u003c/details\u003e | None | Easy |\n\n\n---\n\n## Anime \u0026 Manga\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Jikan](https://jikan.moe/) | \u003cdetails\u003e\u003csummary\u003eUnofficial MyAnimeList API for anime and manga data\u003c/summary\u003eAccess anime/manga information, ratings, reviews, and recommendations for building anime databases and recommendation systems.\u003c/details\u003e | None | Easy |\n| [AniList API](https://anilist.gitbook.io/anilist-apiv2-docs/) | \u003cdetails\u003e\u003csummary\u003eGraphQL API for anime and manga data\u003c/summary\u003eComprehensive anime/manga database with user data, statistics, and social features.\u003c/details\u003e | OAuth | Medium |\n| [Trace.moe](https://soruly.github.io/trace.moe/) | \u003cdetails\u003e\u003csummary\u003eAnime scene search engine\u003c/summary\u003eFind out which anime a scene is from by uploading an image or using a video frame. Useful for anime recognition tools.\u003c/details\u003e | None | Easy |\n| [AnimeChan](https://animechan.io/) | \u003cdetails\u003e\u003csummary\u003eRandom anime quotes\u003c/summary\u003eAccess over 10,000 quotes from a wide variety of anime titles and characters.\u003c/details\u003e | None | Easy |\n| [AnimeNewsNetwork](https://www.animenewsnetwork.com/encyclopedia/api.php) | \u003cdetails\u003e\u003csummary\u003eAnime industry news\u003c/summary\u003eFetch industry-related news, staff, and anime information directly from ANN’s database.\u003c/details\u003e | None | Medium |\n| [MangaDex](https://api.mangadex.org/docs/) | \u003cdetails\u003e\u003csummary\u003eManga database and community\u003c/summary\u003eProvides multilingual manga data, scanlations, user content, and reading statistics.\u003c/details\u003e | apiKey | Medium |\n| [MyAnimeList API](https://myanimelist.net/apiconfig/references/api/v2) | \u003cdetails\u003e\u003csummary\u003eOfficial API for MyAnimeList\u003c/summary\u003eManage and access anime/manga lists, reviews, and user profiles.\u003c/details\u003e | OAuth | Medium |\n| [NekosBest](https://docs.nekos.best/) | \u003cdetails\u003e\u003csummary\u003eAnime image and reaction API\u003c/summary\u003eServe reaction images and GIFs for anime roleplaying bots and fan apps.\u003c/details\u003e | None | Easy |\n| [Shikimori API](https://shikimori.one/api/doc) | \u003cdetails\u003e\u003csummary\u003eAnime tracking and discovery\u003c/summary\u003eGet anime, manga, character, and user rating data along with forums and social info.\u003c/details\u003e | OAuth | Medium |\n| [Kitsu](https://kitsu.docs.apiary.io/) | \u003cdetails\u003e\u003csummary\u003eAnime discovery and tracking platform API\u003c/summary\u003eAccess anime, manga, and user libraries with search and filtering options. Great for anime recommendation engines.\u003c/details\u003e | OAuth | Medium |\n| [Dragon Ball API](https://dragon-ball-api-grlr.onrender.com) | \u003cdetails\u003e\u003csummary\u003eCustom-built API for Dragon Ball fans\u003c/summary\u003eA fully functional, free-to-use API with real CRUD support—not just pseudo responses. Users can perform real operations like delete/reset, and the server restores to its base state within milliseconds. Built with Express.js, TypeScript, MongoDB, and JWT authentication. Perfect for learning and testing full-stack API interactions. [Docs](https://shardendu-mishra-documentation-dragon-ball-api.vercel.app/)\u003c/details\u003e | JWT (Admin) | Medium |\n\n---\n\n## Anti-Malware \u0026 Security\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [VirusTotal](https://developers.virustotal.com/reference) | \u003cdetails\u003e\u003csummary\u003eFile and URL scanning for malware detection\u003c/summary\u003eScan files and URLs for viruses, malware, and security threats using multiple antivirus engines.\u003c/details\u003e | API Key | Easy |\n| [Have I Been Pwned](https://haveibeenpwned.com/API/v3) | \u003cdetails\u003e\u003csummary\u003eCheck if email addresses have been compromised in data breaches\u003c/summary\u003eHelp users check if their credentials have been exposed in known data breaches.\u003c/details\u003e | API Key | Easy |\n| [ALTCHA API](https://altcha.org/) | \u003cdetails\u003e\u003csummary\u003eProof-of-work CAPTCHA \u0026 anti-spam API\u003c/summary\u003eCreate and verify challenges to protect forms and APIs without using cookies or user tracking. Supports classification and customizable complexity.\u003c/details\u003e | API Key | Medium |\n| [IPQualityScore](https://www.ipqualityscore.com/documentation/overview) | \u003cdetails\u003e\u003csummary\u003eDetect fraudulent users, bots, and malicious IPs\u003c/summary\u003ePrevent fake signups and abuse with fraud scoring, email validation, and proxy/VPN detection.\u003c/details\u003e | API Key | Medium |\n| [AbuseIPDB](https://docs.abuseipdb.com/) | \u003cdetails\u003e\u003csummary\u003eCheck if an IP address has been reported for abuse\u003c/summary\u003eCheck IP addresses for reports of abusive behavior such as spam, hacking attempts, or malicious activity. Useful for threat intelligence and security applications.\u003c/details\u003e | API Key | Easy |\n| [Google Safe Browsing API](https://developers.google.com/safe-browsing/v4) | \u003cdetails\u003e\u003csummary\u003eCheck URLs against Google’s list of unsafe web resources\u003c/summary\u003eProtect users by warning about phishing, malware, and harmful sites.\u003c/details\u003e | API Key | Medium |\n| [Mozilla Observatory](https://http-observatory.security.mozilla.org/api) | \u003cdetails\u003e\u003csummary\u003eScan HTTP security headers for web applications\u003c/summary\u003eAnalyze websites for TLS, HSTS, CSP, XSS protection, and more.\u003c/details\u003e | None | Easy |\n| [SecurityTrails API](https://securitytrails.com/corp-api) | \u003cdetails\u003e\u003csummary\u003eLook up domain, DNS, IP, and historical WHOIS data\u003c/summary\u003eIdeal for threat intelligence and domain investigation tools.\u003c/details\u003e | API Key | Medium |\n\n\n---\n\n## Art \u0026 Design\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Unsplash](https://unsplash.com/developers) | \u003cdetails\u003e\u003csummary\u003eHigh-quality stock photography\u003c/summary\u003eAccess millions of free high-resolution photos for your applications, websites, and projects.\u003c/details\u003e | API Key | Easy |\n| [Lorem Picsum](https://picsum.photos/) | \u003cdetails\u003e\u003csummary\u003eLorem Ipsum for photos - placeholder images\u003c/summary\u003eGenerate placeholder images of any size for mockups and development.\u003c/details\u003e | None | Easy |\n| [Art Institute of Chicago](https://api.artic.edu/docs/) | \u003cdetails\u003e\u003csummary\u003eAccess to museum's art collection and data\u003c/summary\u003eBrowse thousands of artworks, artist information, and exhibition data from one of the world's premier art museums.\u003c/details\u003e | None | Easy |\n| [Kroki Diagram API](https://kroki.io/) | \u003cdetails\u003e\u003csummary\u003eText-to-Diagram Generation\u003c/summary\u003eCreate diagrams like UML, flowcharts, and more from simple code syntax using a unified HTTP API.\u003c/details\u003e | None | Medium |\n| [Harvard Art Museums](https://github.com/harvardartmuseums/api-docs) | \u003cdetails\u003e\u003csummary\u003eAccess the Harvard Art Museums collection\u003c/summary\u003eSearch and retrieve high-quality images, artist bios, and artwork details from Harvard's open access collection.\u003c/details\u003e | API Key | Easy |\n| [CoinPaprika](https://api.coinpaprika.com/) | \u003cdetails\u003e\u003csummary\u003eCryptocurrency metadata, historical data, and market statistics\u003c/summary\u003eFree access to global crypto data with fast response time and no auth required.\u003c/details\u003e | None | Easy |\n| [xColors](https://github.com/cheatsnake/xColors-api) | \u003cdetails\u003e\u003csummary\u003eA free API for generating \u0026 converting colors\u003c/summary\u003eEasily generate and convert color formats like HEX, RGB, and HSL with a simple, free API.\u003c/details\u003e | None | Easy |\n| [EmojiHub](https://github.com/cheatsnake/emojihub) | \u003cdetails\u003e\u003csummary\u003eAccess random emojis from sorted categories and groups\u003c/summary\u003eAccess random emojis from sorted categories, group, with addition to full emoji lists or the entire database. All in simple JSON format with HTML codes ready for web use.\u003c/details\u003e | None | Easy |\n\n---\n\n## Blockchain \u0026 Cryptocurrency\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [CoinGecko](https://www.coingecko.com/en/api) | \u003cdetails\u003e\u003csummary\u003eCryptocurrency data including prices, market cap, and trading volume\u003c/summary\u003eGet real-time crypto prices, historical data, market trends, and coin information for building crypto applications.\u003c/details\u003e | None | Easy |\n| [Blockchain.info](https://www.blockchain.com/api) | \u003cdetails\u003e\u003csummary\u003eBitcoin blockchain data and statistics\u003c/summary\u003eAccess Bitcoin transaction data, wallet information, and blockchain statistics.\u003c/details\u003e | None | Easy |\n| [Binance API](https://www.binance.com/en/binance-api) | \u003cdetails\u003e\u003csummary\u003eComprehensive crypto exchange API\u003c/summary\u003eProvides endpoints for spot, margin, futures, and options trading across 300+ coins with high‑performance real-time data and order execution.\u003c/details\u003e | API Key | Medium |\n| [Brave New Coin API](https://bravenewcoin.com/developers) | \u003cdetails\u003e\u003csummary\u003eGlobal digital asset market data\u003c/summary\u003eProvides real-time and historical price indices, trading data, and analytics from 250+ exchanges via REST and WebSocket feeds.\u003c/details\u003e | API Token | Medium |\n| [Coinbase API](https://docs.cdp.coinbase.com/coinbase-app/docs/auth/api-key-authentication) | \u003cdetails\u003e\u003csummary\u003eRetail \u0026 institutional crypto trading\u003c/summary\u003eOffers account management, market data, and trading endpoints; requires API key, secret, and passphrase—supports both wallet and exchange operations.\u003c/details\u003e | API Key + Secret + Passphrase | Medium |\n| [CoinDCX API](https://docs.coindcx.com/) | \u003cdetails\u003e\u003csummary\u003eIndia-based INR crypto trading\u003c/summary\u003eLiquid, low-latency REST APIs for spot and futures, market data, and trading on 700+ markets (INR/crypto and crypto/crypto).\u003c/details\u003e | API Key | Medium |\n| [Gemini API](https://docs.gemini.com/rest-api/) | \u003cdetails\u003e\u003csummary\u003eUS-based crypto exchange platform\u003c/summary\u003eProvides secure account, order, and market data endpoints; supports both REST and FIX; strict rate limits and robust request signing are required.\u003c/details\u003e | API Key + Secret | Medium |\n\n---\n\n## Books \u0026 Literature\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Open Library](https://openlibrary.org/developers/api) | \u003cdetails\u003e\u003csummary\u003eBook data from Internet Archive's Open Library\u003c/summary\u003eSearch books, get book information, covers, and author details for building library applications and book catalogs.\u003c/details\u003e | None | Easy |\n| [Google Books](https://developers.google.com/books) | \u003cdetails\u003e\u003csummary\u003eSearch and access book information from Google's book database\u003c/summary\u003eBuild book search engines, reading lists, and book recommendation systems.\u003c/details\u003e | API Key | Easy |\n| [PoetryDB](https://poetrydb.org/index.html) | \u003cdetails\u003e\u003csummary\u003ePoetryDB is the World's First API for next generation Internet poets.\u003c/details\u003e | API Key | Easy |\n| [Gutendex](https://gutendex.com/) | \u003cdetails\u003e\u003csummary\u003eAPI for Project Gutenberg’s free eBook collection\u003c/summary\u003eSearch, browse, and retrieve metadata of public domain books from Project Gutenberg.\u003c/details\u003e | None | Easy |\n| [ISBNdb](https://isbndb.com/apidocs) | \u003cdetails\u003e\u003csummary\u003eSearch book details by ISBN\u003c/summary\u003eIdeal for book-related platforms needing title, author, and category metadata.\u003c/details\u003e | API Key | Easy |\n| [BookBrainz](https://bookbrainz.org/doc/Development/API) | \u003cdetails\u003e\u003csummary\u003eOpen and structured book metadata\u003c/summary\u003ePerfect for cataloging and digital library projects.\u003c/details\u003e | None | Medium |\n\n  \n---\n\n## Business \u0026 Finance\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Alpha Vantage](https://www.alphavantage.co/documentation/) | \u003cdetails\u003e\u003csummary\u003eStock market data, forex, and cryptocurrency information\u003c/summary\u003eGet real-time and historical stock prices, technical indicators, and financial data for building trading applications.\u003c/details\u003e | API Key | Easy |\n| [IEX Cloud](https://iexcloud.io/docs/api/) | \u003cdetails\u003e\u003csummary\u003eFinancial data including stocks, ETFs, and market statistics\u003c/summary\u003eAccess comprehensive financial market data for building investment tracking and analysis tools.\u003c/details\u003e | API Key | Easy |\n| [Microsoft Graph API](https://learn.microsoft.com/en-us/graph/overview) | \u003cdetails\u003e\u003csummary\u003eUnified Microsoft 365 Access\u003c/summary\u003eSingle API for accessing Microsoft 365 services including mail, calendar, Teams, and OneDrive.\u003c/details\u003e | OAuth | Medium |\n| [Domainsdb](https://domainsdb.info/) | \u003cdetails\u003e\u003csummary\u003eSearch across 260M+ registered domain names and 1000+ TLDs.\u003c/summary\u003eProvides access to a vast index of registered domains, enabling keyword-based search across over 260 million domains and 1000+ TLDs.            \u003c/details\u003e | None | Easy |\n| [ExchangeRate API](https://api.exchangerate.host) | \u003cdetails\u003e\u003csummary\u003eFree currency exchange rate data\u003c/summary\u003eProvides current and historical foreign exchange rates for multiple currencies with no auth required.\u003c/details\u003e | No | Easy |\n| [CoinGecko API](https://www.coingecko.com/en/api) | \u003cdetails\u003e\u003csummary\u003eComprehensive cryptocurrency market data\u003c/summary\u003eAccess real-time prices, market caps, charts, exchanges, and trending coins — great for crypto dashboards and DeFi apps.\u003c/details\u003e | None | Medium |\n| [Financial Modeling Prep](https://site.financialmodelingprep.com/developer/docs/) | \u003cdetails\u003e\u003csummary\u003eStock fundamentals, income statements, company profiles, and more\u003c/summary\u003eIdeal for financial dashboards and investment analysis tools.\u003c/details\u003e | API Key | Medium |\n| [Finnhub](https://finnhub.io/docs/api) | \u003cdetails\u003e\u003csummary\u003eReal-time stock, crypto, forex data, and financial news\u003c/summary\u003eRich financial data including earnings, analyst ratings, and more — great for fintech apps.\u003c/details\u003e | API Key | Medium |\n| [Fixer.io](https://apilayer.com/marketplace/fixer-api) | \u003cdetails\u003e\u003csummary\u003eReal-time foreign exchange rates for 170+ currencies\u003c/summary\u003eSimple, powerful currency conversion API for pricing apps and dashboards.\u003c/details\u003e | API Key | Easy |\n| [OpenCorporates API](https://api.opencorporates.com/documentation/API-Reference) | \u003cdetails\u003e\u003csummary\u003eLargest open database of companies in the world\u003c/summary\u003eGet company info, jurisdictions, directors, and more — useful for KYC, research, and compliance tools.\u003c/details\u003e | API Key | Medium |\n\n---\n\n## Calendar \u0026 Events\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Google Calendar](https://developers.google.com/calendar) | \u003cdetails\u003e\u003csummary\u003eCalendar management and event scheduling\u003c/summary\u003eIntegrate calendar functionality, create events, manage schedules, and build scheduling applications.\u003c/details\u003e | OAuth | Medium |\n| [Calendarific](https://calendarific.com/api-documentation) | \u003cdetails\u003e\u003csummary\u003ePublic holidays and observances for 230+ countries\u003c/summary\u003eGet holiday information and observances to enhance calendar applications and scheduling systems.\u003c/details\u003e | API Key | Easy |\n| [Eventbrite API](https://www.eventbrite.com/platform/api) | \u003cdetails\u003e\u003csummary\u003eSearch, list, and manage events and organizers\u003c/summary\u003eAccess public events, venues, and ticketing data. Ideal for event discovery platforms and scheduling tools.\u003c/details\u003e | OAuth | Medium |\n| [Ticketmaster API](https://developer.ticketmaster.com/products-and-docs/apis/discovery-api/v2/) | \u003cdetails\u003e\u003csummary\u003eSearch for concerts, sports, and entertainment events\u003c/summary\u003eFilter by keyword, genre, location, and date. Great for entertainment and booking apps.\u003c/details\u003e | API Key | Medium |\n| [Date.nager.Date API](https://date.nager.at/swagger/index.html) | \u003cdetails\u003e\u003csummary\u003eWorldwide public holiday API\u003c/summary\u003eFree and open-source API to retrieve official holidays by country and year. Lightweight and easy to integrate.\u003c/details\u003e | None | Easy |\n\n\n---\n\n## Cloud Storage \u0026 File Sharing\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Dropbox](https://www.dropbox.com/developers/documentation) | \u003cdetails\u003e\u003csummary\u003eFile storage and sharing platform integration\u003c/summary\u003eAdd file upload, sharing, and synchronization features to your applications.\u003c/details\u003e | OAuth | Medium |\n| [Google Drive](https://developers.google.com/drive) | \u003cdetails\u003e\u003csummary\u003eFile storage and collaboration platform\u003c/summary\u003eIntegrate Google Drive functionality for file management, sharing, and collaboration features.\u003c/details\u003e | OAuth | Medium |\n| [Box API](https://developer.box.com/reference) | \u003cdetails\u003e\u003csummary\u003eCloud content management and file collaboration\u003c/summary\u003eUpload, manage, share files, and integrate workflows with secure access controls. Used by enterprises and startups alike.\u003c/details\u003e | OAuth | Medium |\n| [Uploadcare API](https://uploadcare.com/docs/api_reference/) | \u003cdetails\u003e\u003csummary\u003eFile upload, CDN delivery, and media processing API\u003c/summary\u003eOffers smart image compression, on-the-fly transformations, and secure file handling.\u003c/details\u003e | API Key | Easy |\n| [Filestack API](https://www.filestack.com/docs/) | \u003cdetails\u003e\u003csummary\u003eFile upload, transform, and delivery service\u003c/summary\u003eIntegrates advanced file picker, image editing, and robust file delivery/CDN capabilities.\u003c/details\u003e | API Key | Medium |\n\n---\n\n## Development \u0026 Testing\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [JSONPlaceholder](https://jsonplaceholder.typicode.com/) | \u003cdetails\u003e\u003csummary\u003eFake REST API for testing and prototyping\u003c/summary\u003ePerfect for frontend development, testing, and learning. Provides fake posts, comments, users, and more.\u003c/details\u003e | None | Easy |\n| [httpbin](https://httpbin.org/) | \u003cdetails\u003e\u003csummary\u003eHTTP request and response testing service\u003c/summary\u003eTest HTTP libraries, debug requests, and understand HTTP behavior with various endpoints.\u003c/details\u003e | None | Easy |\n| [ReqRes](https://reqres.in/) | \u003cdetails\u003e\u003csummary\u003eTest your front-end against a real API\u003c/summary\u003eSimulate real API responses for user management, authentication testing, and API integration testing.\u003c/details\u003e | None | Easy |\n| [SVIX Webhooks API](https://www.svix.com/) | \u003cdetails\u003e\u003csummary\u003eManaged Webhook Infrastructure\u003c/summary\u003eScalable and secure webhooks with retries, logging, SDKs, and debugging tools.\u003c/details\u003e | API Key | Medium |\n| [GoQR](https://goqr.me/api/) | \u003cdetails\u003e\u003csummary\u003eGenerate customizable QR codes via URL\u003c/summary\u003eCreate QR codes for text, URLs, and more with easy URL parameters. Useful for web apps, events, and product tagging.\u003c/details\u003e | None | Easy |\n| [IPify](https://www.ipify.org/) | \u003cdetails\u003e\u003csummary\u003eGet your public IP address\u003c/summary\u003eSimple API to return your public IP address in JSON or plain text. Useful for diagnostics and logging.\u003c/details\u003e | None | Easy |\n| [UptimeRobot](https://uptimerobot.com/api) | \u003cdetails\u003e\u003csummary\u003eWebsite and API uptime monitoring service with alerting\u003c/summary\u003eMonitor the uptime, downtime, and performance of websites and APIs with automated alerts. Great for monitoring deployed apps during development and production.\u003c/details\u003e | API Key | Easy |\n| [Postman Echo](https://www.postman.com/postman/workspace/published-postman-templates/overview) | \u003cdetails\u003e\u003csummary\u003eTest and debug your REST APIs\u003c/summary\u003eTest your REST clients and API calls with a fully-featured HTTP request \u0026 response service.\u003c/details\u003e | None | Easy |\n| [Sentry API](https://docs.sentry.io/api/) | \u003cdetails\u003e\u003csummary\u003eError tracking and performance monitoring for applications.\u003c/summary\u003eAutomate issue tracking, manage releases, and get detailed error reports to resolve bugs faster. Essential for production-grade applications.\u003c/details\u003e | Bearer Token | Medium |\n| [Codecov API](https://docs.codecov.com/reference/api-overview) | \u003cdetails\u003e\u003csummary\u003eCode coverage reporting and analysis.\u003c/summary\u003eIntegrate code coverage reports into your CI/CD pipeline to ensure code quality and maintain testing standards.\u003c/details\u003e | API Key | Medium |\n| [FeatureFlags.io API](https://featureflags.io/docs/api/) | \u003cdetails\u003e\u003csummary\u003eFeature flag and remote configuration management.\u003c/summary\u003eRoll out features to specific user segments, perform A/B testing, and remotely control application features without deploying new code.\u003c/details\u003e | API Key | Easy |\n\n---\n\n## Dictionaries \u0026 Language\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Dictionary API](https://dictionaryapi.dev/) | \u003cdetails\u003e\u003csummary\u003eFree English dictionary with definitions, pronunciations, and examples\u003c/summary\u003eAdd dictionary functionality to your applications with word definitions, phonetics, and usage examples.\u003c/details\u003e | None | Easy |\n| [Google Translate](https://cloud.google.com/translate/docs) | \u003cdetails\u003e\u003csummary\u003eLanguage translation service supporting 100+ languages\u003c/summary\u003eAdd translation capabilities to your applications for international users.\u003c/details\u003e | API Key | Easy |\n| [Oxford Dictionaries API](https://developer.oxforddictionaries.com/documentation) | \u003cdetails\u003e\u003csummary\u003eDictionary \u0026 translation data\u003c/summary\u003eLookup word definitions, translations, pronunciations, example sentences, inflections, and word origins for multiple languages.\u003c/details\u003e | App ID + App Key | Medium |\n| [Lingua Robot](https://www.linguarobot.io/docs) | \u003cdetails\u003e\u003csummary\u003eWord definitions, pronunciation, and usage\u003c/summary\u003ePowerful and developer-friendly dictionary API supporting phonetics, synonyms, and word meanings.\u003c/details\u003e | API Key | Easy |\n| [Free Dictionary API](https://dictionaryapi.dev/) | \u003cdetails\u003e\u003csummary\u003eGet definitions, synonyms, phonetics, and usage examples\u003c/summary\u003eSupports multiple languages including English, Spanish, and French.\u003c/details\u003e | None | Easy |\n| [WordsAPI](https://www.wordsapi.com/docs/) | \u003cdetails\u003e\u003csummary\u003eWord definitions, rhymes, syllables, frequency, and more\u003c/summary\u003eGreat for language learning tools, writing apps, and games.\u003c/details\u003e | API Key | Easy |\n| [Wordnik API](https://developer.wordnik.com/docs) | \u003cdetails\u003e\u003csummary\u003eGet definitions, synonyms, antonyms, and usage examples\u003c/summary\u003eLarge and well-structured dataset. Great for writing assistants and NLP tools.\u003c/details\u003e | API Key | Medium |\n\n\n---\n\n## Disaster \u0026 Safety\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [USGS Earthquake API](https://earthquake.usgs.gov/fdsnws/event/1/) | \u003cdetails\u003e\u003csummary\u003eReal-time earthquake data globally\u003c/summary\u003eProvides real-time earthquake data such as magnitude, location, and time from the U.S. Geological Survey.\u003c/details\u003e | None | Medium |\n| [ReliefWeb API](https://api.reliefweb.int/docs) | \u003cdetails\u003e\u003csummary\u003eHumanitarian disaster alerts and data\u003c/summary\u003eOffers curated humanitarian information including disaster updates, jobs, and reports published by UN and NGOs.\u003c/details\u003e | None | Medium |\n| [Global Disaster Alert (GDACS)](https://www.gdacs.org/) | \u003cdetails\u003e\u003csummary\u003eAlerts on earthquakes, floods, cyclones\u003c/summary\u003eThe Global Disaster Alert and Coordination System gives updates on natural disasters like earthquakes, floods, and cyclones.\u003c/details\u003e | None | Medium |\n| [IFRC GO API (Red Cross)](https://go.ifrc.org/api) | \u003cdetails\u003e\u003csummary\u003eDisaster response and operations data by the International Federation of Red Cross\u003c/summary\u003eIncludes field reports, emergency operations updates, deployments, and appeal data across regions.\u003c/details\u003e | None | Medium |\n| [NASA EONET API](https://eonet.gsfc.nasa.gov/docs/v3) | \u003cdetails\u003e\u003csummary\u003eEarth Observatory Natural Event Tracker\u003c/summary\u003eReal-time global natural events like wildfires, storms, and volcanic activity curated by NASA.\u003c/details\u003e | None | Medium |\n\n\n\n---\n\n## Email \u0026 Communication\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [EmailJS](https://www.emailjs.com/docs/) | \u003cdetails\u003e\u003csummary\u003eSend emails directly from client-side JavaScript\u003c/summary\u003eSend emails from frontend applications without backend infrastructure. Great for contact forms and notifications.\u003c/details\u003e | API Key | Easy |\n| [Mailgun](https://documentation.mailgun.com/en/latest/) | \u003cdetails\u003e\u003csummary\u003eEmail delivery service for developers\u003c/summary\u003eSend transactional emails, newsletters, and notifications with high deliverability rates.\u003c/details\u003e | API Key | Easy |\n| [Zoom API](https://marketplace.zoom.us/) | \u003cdetails\u003e\u003csummary\u003eSchedule and manage video meetings via API\u003c/summary\u003eCreate meetings, manage users, and access recordings using JWT or OAuth authentication. Ideal for integrating Zoom into scheduling or video conferencing apps.\u003c/details\u003e | API Key / OAuth | Medium |\n| [Google Meet (via Calendar API)](https://console.cloud.google.com/) | \u003cdetails\u003e\u003csummary\u003eCreate Meet links by scheduling calendar events\u003c/summary\u003eUse the Google Calendar API to schedule events with embedded Google Meet links. Requires OAuth token and calendar scope.\u003c/details\u003e | OAuth | Medium |\n| [Mailjet API](https://dev.mailjet.com/email/guides/send-api-v31/) | \u003cdetails\u003e\u003csummary\u003eSend transactional or marketing emails via REST API\u003c/summary\u003eTrack email status, deliverability, opens, and clicks.\u003c/details\u003e | API Key | Medium |\n| [Brevo (Sendinblue) API](https://developers.brevo.com/docs) | \u003cdetails\u003e\u003csummary\u003eEmail and SMS communication platform API\u003c/summary\u003eUse for newsletters, OTPs, and alerts with real-time analytics.\u003c/details\u003e | API Key | Easy |\n\n\n\n---\n\n## Entertainment \u0026 Media\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [The Movie Database (TMDb)](https://developers.themoviedb.org/3) | \u003cdetails\u003e\u003csummary\u003eMovie and TV show database with images, ratings, and metadata\u003c/summary\u003eBuild movie recommendation systems, entertainment apps, and media catalogs with comprehensive film and TV data.\u003c/details\u003e | API Key | Easy |\n| [TV Maze](https://www.tvmaze.com/api) | \u003cdetails\u003e\u003csummary\u003eTV show information including episodes, cast, and schedules\u003c/summary\u003eGet detailed TV show information, episode guides, and cast details for entertainment applications.\u003c/details\u003e | None | Easy |\n| [Watchmode API](https://www.watchmode.com/api/) | \u003cdetails\u003e\u003csummary\u003eStreaming Metadata\u003c/summary\u003eMovie/TV search API with metadata, cast, ratings, and streaming availability across platforms.\u003c/details\u003e | API Key | Medium |\n| [Podcast Index API](https://podcastindex.org/api/docs) | \u003cdetails\u003e\u003csummary\u003ePodcast Metadata \u0026 Directory\u003c/summary\u003eAccess podcast episodes, transcripts, feeds, and directories using open podcasting standards.\u003c/details\u003e | API Key | Medium |\n| [GIPHY API](https://developers.giphy.com/) | \u003cdetails\u003e\u003csummary\u003eGIF search and trending content from GIPHY\u003c/summary\u003eAccess GIFs, stickers, and reaction media using search, trending, and random endpoints. Requires a free API key.\u003c/details\u003e | API Key | Easy |\n| [Breaking Bad Quotes API](https://breakingbadquotes.xyz/) | \u003cdetails\u003e\u003csummary\u003eReturns random quotes from Breaking Bad\u003c/summary\u003ePerfect for fan-based apps or quote generators. Returns a quote and the speaker.\u003c/details\u003e | None | Easy |\n| [The Rick and Morty API](https://rickandmortyapi.com/) | \u003cdetails\u003e\u003csummary\u003eGet data from the Rick and Morty universe\u003c/summary\u003eCharacters, locations, episodes, and relationships with a robust query system. Useful for building fan-based UIs or games.\u003c/details\u003e | None | Easy |\n| [Star Wars API (SWAPI)](https://swapi.dev/) | \u003cdetails\u003e\u003csummary\u003eAccess Star Wars universe data\u003c/summary\u003eRetrieve structured data on characters, planets, starships, and more. Popular in tutorials and fan apps.\u003c/details\u003e | None | Easy |\n| [Marvel Comics API](https://developer.marvel.com/) | \u003cdetails\u003e\u003csummary\u003eAccess Marvel characters, comics, stories, and events\u003c/summary\u003eOfficial API for developers to integrate Marvel universe data into their apps. Requires registration.\u003c/details\u003e | API Key | Easy |\n| [PokéAPI](https://pokeapi.co/) | \u003cdetails\u003e\u003csummary\u003ePokémon data including abilities, stats, and evolution\u003c/summary\u003eUseful for games, fan apps, or learning how to work with structured APIs and datasets.\u003c/details\u003e | None | Easy |\n\n---\n\n## Environment \u0026 Weather\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [OpenWeatherMap](https://openweathermap.org/api) | \u003cdetails\u003e\u003csummary\u003eWeather data including current conditions, forecasts, and historical data\u003c/summary\u003eAdd weather information to your applications with current conditions, forecasts, and weather maps.\u003c/details\u003e | API Key | Easy |\n| [AirVisual](https://www.iqair.com/air-pollution-data-api) | \u003cdetails\u003e\u003csummary\u003eAir quality data for cities worldwide\u003c/summary\u003eGet real-time air quality information, pollution data, and health recommendations.\u003c/details\u003e | API Key | Easy |\n| [REST Countries](https://restcountries.com/) | \u003cdetails\u003e\u003csummary\u003eCountry metadata API\u003c/summary\u003eFetch data like flags, capital, region, population for every country—useful for educational or travel apps.\u003c/details\u003e | None | Easy |\n| [Weatherbit API](https://www.weatherbit.io/api) | \u003cdetails\u003e\u003csummary\u003eAccurate weather forecasting and climate data API\u003c/summary\u003eProvides real-time and forecast weather metrics like temperature, humidity, and rainfall. Useful for climate-aware agriculture, IoT, and automation systems.\u003c/details\u003e | API Key | Easy |\n| [OpenAQ](https://docs.openaq.org/) | \u003cdetails\u003e\u003csummary\u003eGlobal real-time air quality data\u003c/summary\u003eAccess worldwide air pollution measurements from verified sources. Useful for monitoring environmental conditions and pollution levels.\u003c/details\u003e | API Key | Easy |\n| [MetaWeather](https://www.metaweather.com/) | \u003cdetails\u003e\u003csummary\u003eFree weather data with no authentication\u003c/summary\u003eGet current weather, forecasts, and historical weather data. Useful for quick testing and demos.\u003c/details\u003e | No | Easy |\n| [Open-Meteo](https://open-meteo.com/en/docs) | \u003cdetails\u003e\u003csummary\u003eFree weather forecast API for open-source use\u003c/summary\u003eProvides hourly and daily forecasts for temperature, wind, rain, humidity, and more. Designed for fast integration without any API key. Ideal for open-source and academic projects with global weather coverage.\u003c/details\u003e | None | Easy |\n| [Electricity Maps](https://www.electricitymaps.com/) | \u003cdetails\u003e\u003csummary\u003eElectricity data and carbon intensity worldwide\u003c/summary\u003eGet real time, historical, and forecasted data on electricity mix, prices, and carbon emissions.\u003c/details\u003e | API Key | Easy |\n| [WeatherAPI](https://openweathermap.org/api) | Weather forecast and current weather data | API Key | Easy |\n| [Weatherstack](https://weatherstack.com/) | \u003cdetails\u003e\u003csummary\u003eReal-time weather data\u003c/summary\u003eGet temperature, wind speed, precipitation, and forecasts — great for dashboards and travel apps.\u003c/details\u003e | API Key | Easy |\n\n---\n\n## Finance \u0026 Banking\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Fixer.io](https://fixer.io/documentation) | \u003cdetails\u003e\u003csummary\u003eForeign exchange rates and currency conversion\u003c/summary\u003eGet real-time and historical exchange rates for building currency converters and financial applications.\u003c/details\u003e | API Key | Easy |\n| [CurrencyAPI](https://currencyapi.com/) | \u003cdetails\u003e\u003csummary\u003eReal-time and historical currency exchange rates\u003c/summary\u003eAccess accurate currency data for e-commerce, financial apps, and international business applications.\u003c/details\u003e | API Key | Easy |\n| [Exchangerate.host](https://exchangerate.host) | \u003cdetails\u003e\u003csummary\u003eFree currency exchange \u0026 conversion API\u003c/summary\u003eProvides real-time foreign exchange rates and historical data. No API key needed and supports base currency selection.\u003c/details\u003e | None | Easy |\n| [BankData API (OpenBanking)](https://api.apis.guru/v2/specs/openbanking.org.uk/2.0.0/swagger.json) | \u003cdetails\u003e\u003csummary\u003eUK open banking API for bank and ATM data\u003c/summary\u003eAccess detailed information on banks, ATMs, branches, and account services — ideal for fintech and banking apps.\u003c/details\u003e | None | Medium |\n| [IBAN API](https://www.iban.com/iban-api) | \u003cdetails\u003e\u003csummary\u003eValidate international bank account numbers (IBAN)\u003c/summary\u003eUseful for financial applications and international payment verification.\u003c/details\u003e | API Key | Easy |\n| [CoinAPI](https://www.coinapi.io/) | \u003cdetails\u003e\u003csummary\u003eCryptocurrency exchange rates and market data\u003c/summary\u003eAccess real-time crypto prices from multiple exchanges, ideal for crypto wallets and finance dashboards.\u003c/details\u003e | API Key | Medium |\n| [Frankfurter API](https://www.frankfurter.app/docs) | \u003cdetails\u003e\u003csummary\u003eFree and simple foreign exchange rates\u003c/summary\u003eOpen-source exchange rate API powered by the European Central Bank. Ideal for quick currency conversion tools.\u003c/details\u003e | None | Easy |\n| [Binlist API](https://binlist.net/) | \u003cdetails\u003e\u003csummary\u003eBank and card BIN lookup\u003c/summary\u003eGet bank details, country, and card type from card BINs — useful for fraud detection and checkout validation.\u003c/details\u003e | None | Easy |\n\n---\n\n## Food \u0026 Drink\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Spoonacular](https://spoonacular.com/food-api) | \u003cdetails\u003e\u003csummary\u003eFood and recipe data with nutrition information\u003c/summary\u003eBuild recipe apps, meal planners, and nutrition trackers with detailed food and recipe data.\u003c/details\u003e | API Key | Easy |\n| [TheCocktailDB](https://www.thecocktaildb.com/api.php) | \u003cdetails\u003e\u003csummary\u003eCocktail recipes and drink information\u003c/summary\u003eGet cocktail recipes, ingredients, and drink information for building bar and recipe applications.\u003c/details\u003e | None/API Key | Easy |\n| [Open Brewery DB](https://www.openbrewerydb.org/) | \u003cdetails\u003e\u003csummary\u003eBreweries in the US\u003c/summary\u003eFind breweries by type, name, or location across the US.\u003c/details\u003e | None | Easy |\n\n\n---\n\n## Games \u0026 Comics\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [RAWG](https://rawg.io/apidocs) | \u003cdetails\u003e\u003csummary\u003eVideo game database with ratings, screenshots, and metadata\u003c/summary\u003eBuild gaming applications with comprehensive video game data, reviews, and media.\u003c/details\u003e | API Key | Easy |\n| [Comic Vine](https://comicvine.gamespot.com/api/) | \u003cdetails\u003e\u003csummary\u003eComic book database with characters, issues, and publishers\u003c/summary\u003eAccess comic book information for building comic databases and recommendation systems.\u003c/details\u003e | API Key | Medium |\n| [AmiiboAPI](https://amiiboapi.com/docs/) | \u003cdetails\u003e\u003csummary\u003eAmiibo character data\u003c/summary\u003eRead-only REST API providing details on Amiibo figures, series, characters, and release usage. Great for game‑related trivia or collection apps.\u003c/details\u003e | None | Easy |\n| [Chess.com API](https://support.chess.com/en/articles/9650547-published-data-api) | \u003cdetails\u003e\u003csummary\u003ePublic chess data access\u003c/summary\u003eREST JSON‑LD API for player profiles, game archives, club \u0026 tournament info. Read‑only; no private data.\u003c/details\u003e | None | Easy |\n| [Clash Royale API](https://developer.clashroyale.com/) | \u003cdetails\u003e\u003csummary\u003eOfficial Clash Royale data\u003c/summary\u003eProvides player stats, clan info, leaderboards, card data, and tournaments via REST with token‑based auth.\u003c/details\u003e | API Key | Medium |\n| [Clash of Clans API](https://developer.clashofclans.com/) | \u003cdetails\u003e\u003csummary\u003eOfficial Clash of Clans endpoints\u003c/summary\u003eAccess clan searches, leaderboards, player and clan profiles, wars, raids; uses JWT Bearer tokens.\u003c/details\u003e | Token | Medium |\n| [Disney API](https://disneyapi.dev/docs/) | \u003cdetails\u003e\u003csummary\u003eDisney characters \u0026 media\u003c/summary\u003eREST \u0026 GraphQL API delivering Disney character metadata, films, TV shows, games, and attractions.\u003c/details\u003e | None | Easy |\n| [Fortnite-API](https://fortnite-api.com/) | \u003cdetails\u003e\u003csummary\u003eFortnite cosmetic/shop \u0026 stats\u003c/summary\u003eExtensive REST API for cosmetics, daily shop, player stats, news, game modes; community‑driven with token‑based auth.\u003c/details\u003e | API Key | Medium |\n| [Genshin Impact API](https://publicapi.dev/genshin-impact-api) | \u003cdetails\u003e\u003csummary\u003eGenshin Impact game data\u003c/summary\u003eUnofficial REST API providing characters, weapons, artifacts, stats, and other static game data.\u003c/details\u003e | None | Easy |\n| [Lichess API](https://lichess.org/api) | \u003cdetails\u003e\u003csummary\u003eFree, open-source chess server API\u003c/summary\u003eAccess user profiles, game archives, tournaments, live game streams, and bot endpoints. Great for building analysis tools, custom clients, and tournament integrations.\u003c/details\u003e | OAuth | Medium |\n| [Raider API](https://genshinlist.com/developer-api) | \u003cdetails\u003e\u003csummary\u003eAlternate Genshin game data\u003c/summary\u003eREST API (genshinlist.com) offering characters, weapon, and artifact endpoints; requires credit \u0026 non‑competing policy.\u003c/details\u003e | None | Medium |\n| [Deck of Cards API](https://deckofcardsapi.com/) | \u003cdetails\u003e\u003csummary\u003eSimulate a deck of cards including shuffling and drawing\u003c/summary\u003eUseful for creating card games, testing logic, or teaching card mechanics.\u003c/details\u003e | None | Easy |\n| [RAWG Video Games Database API](https://rawg.io/apidocs) | \u003cdetails\u003e\u003csummary\u003eLargest open video game database API\u003c/summary\u003eIncludes game titles, genres, ratings, developers, and stores.\u003c/details\u003e | API Key | Easy |\n| [Comic Vine API](https://comicvine.gamespot.com/api/) | \u003cdetails\u003e\u003csummary\u003eComics, characters, volumes, issues \u0026 publishers\u003c/summary\u003eGreat for superhero or comic tracking apps.\u003c/details\u003e | API Key | Medium |\n\n\n---\n\n## Geocoding \u0026 Maps\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Mapbox](https://docs.mapbox.com/api/) | \u003cdetails\u003e\u003csummary\u003eMaps, geocoding, and location services\u003c/summary\u003eAdd interactive maps, geocoding, and navigation features to your applications with customizable styling.\u003c/details\u003e | API Key | Medium |\n| [IP Geolocation API](http://ip-api.com/json) | \u003cdetails\u003e\u003csummary\u003eGet location by IP\u003c/summary\u003eReturns city, country, ZIP code, and geo-coordinates from an IP address.\u003c/details\u003e | None | Easy |\n| [PositionStack](https://positionstack.com/) | \u003cdetails\u003e\u003csummary\u003eForward and reverse geocoding\u003c/summary\u003eConvert addresses to coordinates (and vice versa) using a scalable and reliable location API.\u003c/details\u003e | API Key | Medium |\n| [OpenStreetMap Nominatim](https://nominatim.org/release-docs/develop/api/Overview/) | \u003cdetails\u003e\u003csummary\u003eFree geocoding service using OpenStreetMap data\u003c/summary\u003eConvert addresses to coordinates and vice versa using open-source mapping data.\u003c/details\u003e | None | Easy |\n| [SpaceX Launch Data](https://api.spacexdata.com/) | \u003cdetails\u003e\u003csummary\u003eSpaceX launch information API\u003c/summary\u003eGet data on recent and upcoming launches including rocket, crew, site, payload, and more.\u003c/details\u003e | None | Easy |\n| [Zippopotam.us](http://api.zippopotam.us/) | \u003cdetails\u003e\u003csummary\u003ePostal code geolocation API\u003c/summary\u003eRetrieve location data (city, state, and country) based on postal codes across multiple countries. Great for geocoding-lite use cases or ZIP-to-location conversions.\u003c/details\u003e | None | Easy |\n| [N2YO](https://www.n2yo.com/api/) | \u003cdetails\u003e\u003csummary\u003eReal-time satellite tracking data services\u003c/summary\u003eTrack real-time satellite positions, visibility passes, and orbital data using NORAD TLEs with N2YO’s easy-to-use satellite tracking API.\u003c/details\u003e | API Key | Medium |\n| [IPinfo](https://ipinfo.io/developers/) | \u003cdetails\u003e\u003csummary\u003eIP address lookup and geolocation service\u003c/summary\u003eGet location, ISP, and organization info for IPs—ideal for location-based customization or analytics.\u003c/details\u003e | None | Easy |\n| [what3words API](https://developer.what3words.com/public-api) | \u003cdetails\u003e\u003csummary\u003eA unique way to identify any 3m x 3m square in the world with just three words.\u003c/summary\u003eIdeal for precise location sharing for deliveries, emergencies, and travel applications where street addresses are not accurate enough.\u003c/details\u003e | API Key | Easy |\n| [OpenSky Network API](https://opensky-network.org/apidoc/rest.html) | \u003cdetails\u003e\u003csummary\u003eReal-time and historical flight data for academic and non-commercial use.\u003c/summary\u003eTrack flights, get aircraft positions, and access a wealth of aviation data. A great free alternative for hobbyist projects.\u003c/details\u003e | None | Medium |\n| [OpenCage Geocoder](https://opencagedata.com/api) | \u003cdetails\u003e\u003csummary\u003eGeocoding and reverse geocoding API\u003c/summary\u003eBuilt on OSM and other open sources — excellent for global location search and address formatting.\u003c/details\u003e | API Key | Medium |\n| [Geoapify](https://apidocs.geoapify.com/) | \u003cdetails\u003e\u003csummary\u003eAll-in-one mapping, routing, and location services\u003c/summary\u003eGreat for map visualizations, POI search, and route planning apps.\u003c/details\u003e | API Key | Medium |\n\n\n\n## Government \u0026 Public Data\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [REST Countries](https://restcountries.com/) | \u003cdetails\u003e\u003csummary\u003eCountry information including flags, currencies, and demographics\u003c/summary\u003eGet comprehensive country data for building educational apps, travel applications, and geographical tools.\u003c/details\u003e | None | Easy |\n| [US Census](https://www.census.gov/data/developers/data-sets.html) | \u003cdetails\u003e\u003csummary\u003eUS demographic and economic data\u003c/summary\u003eAccess population, economic, and demographic data for research and analysis applications.\u003c/details\u003e | None/API Key | Medium |\n| [Indian Government Open Data ](https://www.data.gov.in/apis) | \u003cdetails\u003e\u003csummary\u003eAccess to public datasets from Indian government agencies\u003c/summary\u003eAccess population, economic, and demographic data for research and analysis applications.\u003c/details\u003e | API Key | Easy |\n| [India IT Department](https://directory.apisetu.gov.in/api-collection/pan) | \u003cdetails\u003e\u003csummary\u003eIndia income tax data\u003c/summary\u003eTrack PAN, verify PAN, organization PAN verification API\u003c/details\u003e | None/API Key | Medium |\n\n---\n\n## Health \u0026 Medical\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Disease.sh](https://disease.sh/docs/) | \u003cdetails\u003e\u003csummary\u003eCOVID-19 and disease statistics\u003c/summary\u003eGet global disease data, COVID-19 statistics, and health information for building health tracking applications.\u003c/details\u003e | None | Easy |\n| [FHIR](https://www.hl7.org/fhir/) | \u003cdetails\u003e\u003csummary\u003eHealthcare interoperability standard for medical data\u003c/summary\u003eAccess and exchange healthcare information using industry-standard medical data formats.\u003c/details\u003e | Varies | Hard |\n| [Nutritionix API](https://developer.nutritionix.com/docs/v2) | \u003cdetails\u003e\u003csummary\u003eNutrition \u0026 food database\u003c/summary\u003eSearch branded and generic foods, fetch nutrition facts, serving sizes, UPC lookups, and natural language meal parsing.\u003c/details\u003e | API Key | Medium |\n| [COVID19 API](https://covid19api.com) | \u003cdetails\u003e\u003csummary\u003eGlobal COVID-19 stats\u003c/summary\u003eGet accurate, country-wise COVID-19 case numbers, deaths, and recovery trends.\u003c/details\u003e | None | Easy |\n| [Affirmations.dev](https://affirmations.dev/) | \u003cdetails\u003e\u003csummary\u003ePositive self-affirmations\u003c/summary\u003eAPI that returns simple, uplifting affirmations — ideal for apps focused on self-care and emotional health.\u003c/details\u003e | None | Easy |\n\n\n---\n\n## Jobs \u0026 Careers\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Adzuna](https://developer.adzuna.com/) | \u003cdetails\u003e\u003csummary\u003eJob search data and salary information\u003c/summary\u003eGet job listings, salary data, and employment statistics for building career platforms.\u003c/details\u003e | API Key | Easy |\n\n---\n\n### Jokes\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [JokeAPI](https://v2.jokeapi.dev/) | Programming, general, and dark jokes. | No | Easy\n| [Official Joke API](https://official-joke-api.appspot.com/) | Short general and programming jokes. | No | Medium |\n| [Chuck Norris API](https://api.chucknorris.io/) | Random Chuck Norris jokes. | No | Easy |\n| [Dad Jokes API](https://icanhazdadjoke.com/api) | Dad jokes in JSON format. | No |Medium |\n| [Yo Momma API](https://yomomma-api.herokuapp.com/) | Funny \"yo momma\" jokes. | No |Easy |\n| [JokeAPI.xyz](https://jokeapi.xyz/) | Random one-line jokes from a simple API. | No | Easy |\n\n## Music \u0026 Audio\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Last.fm](https://www.last.fm/api) | \u003cdetails\u003e\u003csummary\u003eMusic metadata, user listening data, and recommendations\u003c/summary\u003eBuild music discovery apps, scrobbling services, and music recommendation systems.\u003c/details\u003e | API Key | Easy |\n| [Lyrics.ovh](https://lyricsovh.docs.apiary.io/) | \u003cdetails\u003e\u003csummary\u003eSong lyrics database\u003c/summary\u003eGet song lyrics for music applications and karaoke systems.\u003c/details\u003e | None | Easy |\n| [Napster API](https://developer.prod.napster.com/) | \u003cdetails\u003e\u003csummary\u003eComprehensive music catalog \u0026 playback API\u003c/summary\u003eAccess millions of tracks, artist metadata, user playlists, favorites, play counts, and more for building streaming apps.\u003c/details\u003e | apiKey | Medium |\n| [Musixmatch API](https://developer.musixmatch.com/) | \u003cdetails\u003e\u003csummary\u003eHuge lyrics database\u003c/summary\u003eSearch and retrieve licensed lyrics and translations for millions of songs, sync lyrics with media playback.\u003c/details\u003e | API Key | Medium |\n| [SoundCloud API](https://developers.soundcloud.com/docs/api/guide) | \u003cdetails\u003e\u003csummary\u003eAudio upload, insights \u0026 discovery\u003c/summary\u003eBuild apps leveraging user-uploaded tracks, comments, playlists, user profiles, and search/explore features on SoundCloud.\u003c/details\u003e | OAuth (client_id/client_secret) | Medium |\n| [Mixcloud API](https://www.mixcloud.com/developers/) | \u003cdetails\u003e\u003csummary\u003ePodcasts \u0026 DJ mix data\u003c/summary\u003eFetch user profiles, cloudcasts, tags, playlists, and embed/stream content from Mixcloud.\u003c/details\u003e | OAuth | Medium |\n| [TheAudioDB API](https://www.theaudiodb.com/free_music_api) | \u003cdetails\u003e\u003csummary\u003eCommunity-driven music metadata\u003c/summary\u003eRetrieve artist info, albums, tracks, images, and music videos; free tier with test key (“2”).\u003c/details\u003e | API Key (test-level free) | Easy |\n| [Shazam (via ShazamKit / third-party)](https://developer.apple.com/shazamkit/) | \u003cdetails\u003e\u003csummary\u003eMusic recognition \u0026 discovery\u003c/summary\u003eUse Shazam’s audio recognition in apps to identify songs, access metadata, lyrics, artist info, and match audio from mic or file.\u003c/details\u003e | SDK Key | Medium |\n| [AudioDB](https://www.theaudiodb.com/api_guide.php) | \u003cdetails\u003e\u003csummary\u003eMusic artist and album data\u003c/summary\u003eSearch for artists, albums, tracks, and music videos — includes artwork and biography details.\u003c/details\u003e | API Key | Easy |\n\n\n\n---\n\n## News \u0026 Journalism\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Spaceflight News API](https://api.spaceflightnewsapi.net/v4/docs/) | \u003cdetails\u003e\u003csummary\u003eSpaceflight and rocket launch news data\u003c/summary\u003eGet the latest news on rocket launches, missions, and spaceflight updates. No authentication required.\u003c/details\u003e | None | Easy |\n| [NewsAPI](https://newsapi.org/) | \u003cdetails\u003e\u003csummary\u003eNews articles from thousands of sources worldwide\u003c/summary\u003eBuild news aggregators, current events apps, and media monitoring tools with real-time news data.\u003c/details\u003e | API Key | Easy |\n| [Guardian API](https://open-platform.theguardian.com/) | \u003cdetails\u003e\u003csummary\u003eAccess to The Guardian's content and archives\u003c/summary\u003eGet articles, multimedia content, and editorial data from The Guardian newspaper.\u003c/details\u003e | API Key | Easy |\n| [New York Times API](https://developer.nytimes.com/apis) | \u003cdetails\u003e\u003csummary\u003eAccess NYT news content \u0026 data\u003c/summary\u003eRetrieve articles, movie reviews, book bestsellers, real‑time political data, archives, and more from The New York Times’ various endpoints.\u003c/details\u003e | API Key | Medium |\n| [The Guardian Open Platform](https://open-platform.theguardian.com/documentation/) | \u003cdetails\u003e\u003csummary\u003eFull‑text articles \u0026 metadata\u003c/summary\u003eSearch and retrieve content, tags, sections, images, and multimedia from The Guardian’s archive and live site.\u003c/details\u003e | API Key | Medium |\n| [Aylien News API](https://developer.aylien.com/newsapi) | \u003cdetails\u003e\u003csummary\u003eAI-powered news analysis\u003c/summary\u003eSearch and analyze global news stories using NLP: filter by entities, categories, sentiment, and more.\u003c/details\u003e | API Key | Medium |\n| [News Aggregator](https://gnews.io/) | \u003cdetails\u003e\u003csummary\u003eProvides real-time and historical news  with easy search and integration\u003c/details\u003e | API Key | Easy |\n| [Currents API](https://currentsapi.services/en) | \u003cdetails\u003e\u003csummary\u003eRecent news published on blogs, websites, and news outlets\u003c/summary\u003eProvides headlines and news articles across categories with filtering by language and region.\u003c/details\u003e | API Key | Easy |\n| [GNews API](https://gnews.io/) | \u003cdetails\u003e\u003csummary\u003eAccess to news articles from thousands of sources\u003c/summary\u003eSearch, filter, and retrieve news content using the free-tier GNews API.\u003c/details\u003e | API Key | Easy |\n| [Mediastack](https://mediastack.com/documentation) | \u003cdetails\u003e\u003csummary\u003eReal-time and historical news data API\u003c/summary\u003eProvides access to thousands of news sources for headlines, topics, and regions.\u003c/details\u003e | API Key | Medium |\n| [NewsData.io](https://newsdata.io/docs) | \u003cdetails\u003e\u003csummary\u003eSearch real-time news from 50+ countries\u003c/summary\u003eSupport for multiple languages, categories (tech, sports, etc.), and keyword filtering.\u003c/details\u003e | API Key | Medium |\n| [ContextualWeb News API](https://rapidapi.com/contextualwebsearch/api/web-search) | \u003cdetails\u003e\u003csummary\u003eFetch curated news headlines with relevance scoring\u003c/summary\u003eGreat for NLP apps, sentiment analysis, and trending news feeds.\u003c/details\u003e | API Key (via RapidAPI) | Medium |\n| [New York Times API](https://developer.nytimes.com/apis) | \u003cdetails\u003e\u003csummary\u003eAccess top stories, archives, articles, and reviews\u003c/summary\u003eOfficial API for pulling news from the New York Times. Offers article search, movie and book reviews, and real-time headlines.\u003c/details\u003e | API Key | Medium |\n\n\n\n\n---\n\n## Open Data \u0026 Analytics\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [World Bank](https://datahelpdesk.worldbank.org/knowledgebase/articles/889392) | \u003cdetails\u003e\u003csummary\u003eGlobal development data and statistics\u003c/summary\u003eAccess economic, social, and development indicators for countries worldwide.\u003c/details\u003e | None | Easy |\n| [Data.gov](https://www.data.gov/developers/apis) | \u003cdetails\u003e\u003csummary\u003eUS government open data\u003c/summary\u003eAccess thousands of government datasets covering various topics and departments.\u003c/details\u003e | None/API Key | Easy |\n| [DuckDuckGo Instant Answer API](https://duckduckgo.com/api) | \u003cdetails\u003e\u003csummary\u003eZero-Click Information Retrieval\u003c/summary\u003eProvides instant answers (definitions, facts, conversions) without tracking or requiring API keys.\u003c/details\u003e | None | Medium |\n| [OpenCorporates API](https://api.opencorporates.com/documentation/API-Reference) | \u003cdetails\u003e\u003csummary\u003eAccess company data from over 140 jurisdictions — including legal entities, directors, and filing histories.\u003c/summary\u003eIdeal for compliance tools, investigative journalism, B2B verification apps, and enterprise analytics.\u003c/details\u003e | API Key | Hard |\n| [SearchAPI.io](https://www.searchapi.io/) | \u003cdetails\u003e\u003csummary\u003eReal-time Google Search scraping API for extracting web results, news, images, shopping data, and more without captchas or IP bans\u003c/summary\u003eUseful for SEO tools, market research, content monitoring, and building search-powered applications. Offers multiple engines (Google, Bing, Baidu, etc.), localization, and rich result extraction. Supports keyword tracking, location-based search, and custom device emulation.\u003c/details\u003e | API Key | Medium |\n| [Data.gov API](https://api.data.gov/) | \u003cdetails\u003e\u003csummary\u003eU.S. government’s open data across health, environment, and more\u003c/summary\u003eSearch and integrate datasets for civic tech and research applications.\u003c/details\u003e | API Key | Easy |\n| [Open Data EU Portal](https://data.europa.eu/en/apis) | \u003cdetails\u003e\u003csummary\u003eDatasets from the European Union’s public repositories\u003c/summary\u003eIdeal for researchers, analysts, and open data visualizations.\u003c/details\u003e | API Key | Medium |\n| [UN Data API (UNStats)](https://unstats.un.org/SDGAPI/swagger/) | \u003cdetails\u003e\u003csummary\u003eOfficial UN statistics on global sustainable development\u003c/summary\u003eUse for dashboards on education, poverty, health, and environment KPIs.\u003c/details\u003e | None | Medium |\n| [OpenWeather Historical Bulk Data](https://open-meteo.com/en/docs) | \u003cdetails\u003e\u003csummary\u003eClimate and meteorological open datasets\u003c/summary\u003eGet open access to past weather data, temperature, humidity, and pressure for analytics.\u003c/details\u003e | None | Medium |\n\n---\n\n## Open Source Projects\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Libraries.io](https://libraries.io/api) | \u003cdetails\u003e\u003csummary\u003eOpen source package and dependency data\u003c/summary\u003eTrack open source projects, dependencies, and package information across multiple package managers.\u003c/details\u003e | API Key | Easy |\n| [GitLab API](https://docs.gitlab.com/ee/api/) | \u003cdetails\u003e\u003csummary\u003eGitLab project and repository management\u003c/summary\u003eAccess GitLab repositories, issues, merge requests, and CI/CD data for building developer tools.\u003c/details\u003e | OAuth/Token | Medium |\n| [GHTorrent API](http://ghtorrent.org/) | \u003cdetails\u003e\u003csummary\u003eProvides a mirror of GitHub's public event stream into a queryable database format.\u003c/summary\u003eExcellent for open source research, contributor network analysis, and understanding GitHub trends over time.\u003c/details\u003e | No | Hard |\n\n\n---\n\n## Podcasting\n\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Listen Notes](https://www.listennotes.com/api/docs/) | \u003cdetails\u003e\u003csummary\u003eThe most comprehensive podcast database. Search for podcasts, episodes, and even listen to audio clips.\u003c/summary\u003eThis API is often called the \"Google of podcasts.\" It allows you to build podcast players, discovery platforms, or analytical tools.\u003c/details\u003e | API Key | Easy |\n| [Podcast Index](https://podcastindex-org.github.io/docs-api/) | \u003cdetails\u003e\u003csummary\u003eAn open, developer-friendly podcast database. Focused on preserving podcasting as a platform for free speech.\u003c/summary\u003eProvides a free and open alternative for accessing podcast metadata, including feeds, episodes, and categories.\u003c/details\u003e | API Key | Easy |\n| [Podbean](https://developers.podbean.com/) | \u003cdetails\u003e\u003csummary\u003ePodcast hosting and management platform with a free plan and a 14-day free trial for premium features.\u003c/summary\u003eAllows programmatic management of podcasts, episodes, stats, and publishing workflows.\u003c/details\u003e | API Key | Easy |\n| [Anchor (Spotify for Podcasters)](https://podcasters.spotify.com/) | \u003cdetails\u003e\u003csummary\u003eFree podcast hosting and distribution platform by Spotify.\u003c/summary\u003eAllows unlimited uploads, analytics, and one-step distribution to Spotify and other platforms. API access for episode management and analytics.\u003c/details\u003e | Account | Easy |\n| [Transistor](https://developers.transistor.fm/) | \u003cdetails\u003e\u003csummary\u003eProfessional podcast hosting with a free trial and a comprehensive API.\u003c/summary\u003eAPI allows uploading episodes, managing analytics, and more. Free trial available for new users.\u003c/details\u003e | API Key | Easy |\n\n---\n\n## Phone \u0026 SMS\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Twilio](https://www.twilio.com/docs/api) | \u003cdetails\u003e\u003csummary\u003eSMS, voice, and communication services\u003c/summary\u003eSend SMS messages, make voice calls, and build communication features into your applications.\u003c/details\u003e | API Key | Easy |\n| [TextBelt](https://textbelt.com/) | \u003cdetails\u003e\u003csummary\u003eFree SMS API for sending text messages\u003c/summary\u003eSend SMS messages programmatically with a simple REST API.\u003c/details\u003e | None/API Key | Easy |\n| [Vonage](https://developer.vonage.com/) | \u003cdetails\u003e\u003csummary\u003eSMS, Voice, Video and Verification APIs\u003c/summary\u003eAdd messaging, voice calls, video conferencing, and 2FA verification to applications. Supports global number provisioning and advanced communication workflows.\u003c/details\u003e | API Key | Medium |\n| [Vonage API](https://developer.vonage.com/en/messaging/sms/overview) | \u003cdetails\u003e\u003csummary\u003eSend and receive SMS programmatically\u003c/summary\u003eSupports SMS alerts, delivery reports, and OTP workflows globally.\u003c/details\u003e | API Key | Medium |\n\n\n---\n\n## Photography \u0026 Images\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Pexels](https://www.pexels.com/api/) | \u003cdetails\u003e\u003csummary\u003eFree stock photography and videos\u003c/summary\u003eAccess thousands of high-quality free photos and videos for your projects and applications.\u003c/details\u003e | API Key | Easy |\n| [Pixabay](https://pixabay.com/api/docs/) | \u003cdetails\u003e\u003csummary\u003eFree images, vectors, and videos\u003c/summary\u003eGet royalty-free images, illustrations, and videos for commercial and personal use.\u003c/details\u003e | API Key | Easy |\n| [Flickr](https://www.flickr.com/services/developer/api/) | \u003cdetails\u003e\u003csummary\u003ePhoto sharing and search API\u003c/summary\u003eAccess billions of public photos, search by tags, keywords, users, and more. Retrieve metadata, manage galleries, and interact with user content. Advanced features include group and collection management.\u003c/details\u003e | API Key (OAuth for user data) | Medium |\n| [Lorem Picsum](https://picsum.photos/) | \u003cdetails\u003e\u003csummary\u003eRandom placeholder images for mockups\u003c/summary\u003eGenerate random images with customizable dimensions and grayscale, blur, and seed options. Perfect for prototyping and UI design.\u003c/details\u003e | None | Easy |\n| [Unsplash](https://unsplash.com/documentation) | \u003cdetails\u003e\u003csummary\u003ePull beautiful high-res images for UI testing\u003c/summary\u003e\u003c/details\u003e | API Key | Medium |\n\n---\n\n## Programming \u0026 Code\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [GitHub](https://docs.github.com/en/rest) | \u003cdetails\u003e\u003csummary\u003eCode repositories, issues, and development data\u003c/summary\u003eBuild developer tools, portfolio sites, and code analysis applications with comprehensive GitHub data.\u003c/details\u003e | OAuth/Token | Medium |\n| [Stack Overflow](https://api.stackexchange.com/) | \u003cdetails\u003e\u003csummary\u003eProgramming Q\u0026A data from Stack Overflow\u003c/summary\u003eAccess questions, answers, and programming knowledge from the largest developer community.\u003c/details\u003e | None/API Key | Easy |\n| [Judge0](https://judge0.com/docs) | \u003cdetails\u003e\u003csummary\u003eOnline code execution and compiling API\u003c/summary\u003eExecute and evaluate code in multiple programming languages, ideal for building online compilers, coding challenges, and auto-graders.\u003c/details\u003e | API Key | Medium |\n| [Judge0 API](https://judge0.com/) | \u003cdetails\u003e\u003csummary\u003eCompile and execute code in 60+ languages\u003c/summary\u003ePerfect for building online IDEs or coding challenge platforms.\u003c/details\u003e | API Key | Medium |\n| [Codeforces API](https://codeforces.com/apiHelp) | \u003cdetails\u003e\u003csummary\u003eFetch problems, contests, user profiles from Codeforces\u003c/summary\u003eUseful for building CP dashboards or live standings.\u003c/details\u003e | None | Medium |\n\n\n---\n\n## Science \u0026 Mathematics\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [NASA](https://api.nasa.gov/) | \u003cdetails\u003e\u003csummary\u003eSpace and astronomy data from NASA\u003c/summary\u003eAccess space images, astronomical data, and NASA mission information for educational and space applications.\u003c/details\u003e | API Key | Easy |\n| [Numbers API](http://numbersapi.com/) | \u003cdetails\u003e\u003csummary\u003eInteresting facts about numbers\u003c/summary\u003eGet mathematical facts, date facts, and trivia about numbers for educational applications.\u003c/details\u003e | None | Easy |\n| [Wolfram Alpha API](https://products.wolframalpha.com/api/) | \u003cdetails\u003e\u003csummary\u003eComputational knowledge engine\u003c/summary\u003eSubmit queries to get structured data, charts, or plain‑text answers across math, science, culture, history, and more.\u003c/details\u003e | API Key | Hard |\n| [Periodic Table API](https://neelpatel05.pythonanywhere.com/) | \u003cdetails\u003e\u003csummary\u003eInfo about all elements of the periodic table\u003c/summary\u003eEducational API for accessing atomic data and chemistry-related information.\u003c/details\u003e | None | Easy |\n| [Open Notify](http://open-notify.org/Open-Notify-API/) | \u003cdetails\u003e\u003csummary\u003eTrack the ISS and get people-in-space data\u003c/summary\u003eGet real-time data about the ISS location, upcoming passes over coordinates, and the current crew in space — no authentication needed.\u003c/details\u003e | None | Easy |\n| [Numbers API](http://numbersapi.com/) | \u003cdetails\u003e\u003csummary\u003eGet trivia and facts about numbers (math, dates, years)\u003c/summary\u003eFun and lightweight API for math-focused projects.\u003c/details\u003e | None | Easy |\n| [Newton API](https://github.com/aunyks/newton-api) | \u003cdetails\u003e\u003csummary\u003eMath expression solver with steps\u003c/summary\u003eSolve algebra, calculus, matrices, equations — great for education tools.\u003c/details\u003e | None | Medium |\n\n\n\n---\n\n## Shopping \u0026 E-commerce\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Best Buy](https://bestbuyapis.github.io/api-documentation/) | \u003cdetails\u003e\u003csummary\u003eProduct information and pricing from Best Buy\u003c/summary\u003eAccess product catalogs, pricing, and availability data for building price comparison and shopping applications.\u003c/details\u003e | API Key | Easy |\n| [eBay](https://developer.ebay.com/api-docs/static/rest-request-components.html) | \u003cdetails\u003e\u003csummary\u003eMarketplace data and product listings\u003c/summary\u003eAccess eBay listings, pricing data, and marketplace information for e-commerce applications.\u003c/details\u003e | OAuth | Hard |\n| [Razorpay APIs](https://razorpay.com/docs/api/) | \u003cdetails\u003e\u003csummary\u003eFull-stack payments solution for e-commerce\u003c/summary\u003eAccept and manage online payments in India with invoices, webhooks, and subscriptions.\u003c/details\u003e | API Key | Medium |\n| [Fake Store API](https://fakestoreapi.com/) | \u003cdetails\u003e\u003csummary\u003eMock e-commerce REST API with products, carts, and users\u003c/summary\u003ePerfect for testing shopping cart UIs and product-based layouts.\u003c/details\u003e | None | Easy |\n\n\n---\n\n## Social Media \u0026 Networking\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Twitter API](https://developer.twitter.com/en/docs) | \u003cdetails\u003e\u003csummary\u003eTweet data, user information, and social media analytics\u003c/summary\u003eBuild social media tools, sentiment analysis applications, and Twitter integrations.\u003c/details\u003e | OAuth | Hard |\n| [Reddit](https://www.reddit.com/dev/api/) | \u003cdetails\u003e\u003csummary\u003eReddit posts, comments, and community data\u003c/summary\u003eAccess Reddit content for building social media analytics, content aggregators, and community tools.\u003c/details\u003e | OAuth | Medium |\n| [BlueSky](https://docs.bsky.app/) | \u003cdetails\u003e\u003csummary\u003eSkeet/user data, user information, and custom feeds\u003c/summary\u003eUtilize the AT Protocol to access BlueSky's data to build bots, custom feeds and client apps.\u003c/details\u003e | OAuth | Medium |\n---\n\n## Sports \u0026 Fitness\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [ESPN](http://www.espn.com/apis/devcenter/) | \u003cdetails\u003e\u003csummary\u003eSports scores, statistics, and news\u003c/summary\u003eGet live sports data, player statistics, and sports news for building sports applications.\u003c/details\u003e | None | Easy |\n| [Football-Data](https://www.football-data.org/) | \u003cdetails\u003e\u003csummary\u003eSoccer/football match data and statistics\u003c/summary\u003eAccess fixture lists, match results, and team statistics for soccer applications.\u003c/details\u003e | API Key | Easy |\n| [Balldontlie](https://www.balldontlie.io/) | \u003cdetails\u003e\u003csummary\u003eNBA data including players, teams, games, and season stats.\u003c/summary\u003eGet live sports data, player season averages, player comparisons, and nba news for nba applications.\u003c/details\u003e | None | Easy |\n\n---\n\n## Test Data \u0026 Mock APIs\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [JSONPlaceholder](https://jsonplaceholder.typicode.com/) | \u003cdetails\u003e\u003csummary\u003eFake REST API for testing and prototyping\u003c/summary\u003ePerfect for learning, testing, and prototyping with fake posts, comments, albums, photos, todos, and users.\u003c/details\u003e | None | Easy |\n| [Random User Generator](https://randomuser.me/) | \u003cdetails\u003e\u003csummary\u003eGenerate random user data for testing\u003c/summary\u003eGet realistic user profiles with photos, names, addresses, and contact information for testing applications.\u003c/details\u003e | None | Easy |\n| [Mockaroo](https://www.mockaroo.com/) | \u003cdetails\u003e\u003csummary\u003eGenerate realistic fake data for testing and development.\u003c/summary\u003e Mockaroo allows you to easily download large amounts of randomly generated test data based on your own specs/schemas which you can then load directly into your test environment using CSV, SQL, JSON and many other formats.\u003c/details\u003e | API Key | Easy |\n| [FakerAPI](https://fakerapi.it/en) | \u003cdetails\u003e\u003csummary\u003eGenerate fake users, texts, products, and more\u003c/summary\u003eGreat for table layouts, dashboards, and frontend development.\u003c/details\u003e | None | Easy |\n| [Bored API](https://www.boredapi.com/) | \u003cdetails\u003e\u003csummary\u003eGet random activity suggestions\u003c/summary\u003eUseful for apps that suggest fun tasks, learning goals, or creative breaks. Great for demos or boredom-relief features.\u003c/details\u003e | None | Easy |\n| [ReqRes](https://reqres.in/) | \u003cdetails\u003e\u003csummary\u003eFake API for simulating user CRUD operations\u003c/summary\u003eProvides realistic response formats and supports login/registration flows. Great for frontend testing.\u003c/details\u003e | None | Easy |\n| [Fake Store API](https://fakestoreapi.com/) | \u003cdetails\u003e\u003csummary\u003eFake e-commerce data including products, users, carts\u003c/summary\u003eIdeal for prototyping shop UIs and testing shopping flows with dummy items and prices.\u003c/details\u003e | None | Easy |\n| [Random Data API](https://random-data-api.com/documentation) | \u003cdetails\u003e\u003csummary\u003eGenerate fake users, addresses, credit cards, beers, and more\u003c/summary\u003eFun and flexible API with multiple endpoints for themed mock data like games, colors, appliances, etc.\u003c/details\u003e | None | Easy |\n| [Uinames](https://uinames.com/) *(Note: may be deprecated)* | \u003cdetails\u003e\u003csummary\u003eGenerate random names by region and gender\u003c/summary\u003eLightweight API for generating culturally contextualized names for testing and onboarding flows.\u003c/details\u003e | None | Easy |\n| [Corporate BS Generator](https://corporatebs-generator.sameerkumar.website/) | \u003cdetails\u003e\u003csummary\u003eGet fake corporate jargon and startup phrases\u003c/summary\u003eFun API that outputs corporate-style buzzwords — great for text placeholders and demos.\u003c/details\u003e | None | Easy |\n\n\n\n---\n\n## Text Analysis \u0026 Processing\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [Natural Language API](https://cloud.google.com/natural-language/docs) | \u003cdetails\u003e\u003csummary\u003eText analysis including sentiment, entities, and syntax\u003c/summary\u003eAnalyze text for sentiment, extract entities, and understand document structure using Google's ML models.\u003c/details\u003e | API Key | Medium |\n| [Perspective API](https://perspectiveapi.com/) | \u003cdetails\u003e\u003csummary\u003eToxicity and comment analysis\u003c/summary\u003eIdentify toxic comments and analyze text for harmful content to improve online conversations.\u003c/details\u003e | API Key | Easy |\n| [Quote Garden](https://pprathameshmore.github.io/QuoteGarden/) | \u003cdetails\u003e\u003csummary\u003eRandom quotes API\u003c/summary\u003eFetch famous quotes by author or random ones—great for motivational widgets or writing prompts.\u003c/details\u003e | None | Easy |\n| [Fun Translations](https://funtranslations.com/api) | \u003cdetails\u003e\u003csummary\u003eTranslate text to fun fictional styles\u003c/summary\u003eTurn your messages into Yoda-speak, Minion language, Pirate lingo and more—great for fun apps or bots.\u003c/details\u003e | None | Easy |\n| [Twinword Text Analysis API](https://www.twinword.com/api/text-analysis.php) | \u003cdetails\u003e\u003csummary\u003eMulti-feature text analysis (sentiment, emotion, keyword, etc.)\u003c/summary\u003eAnalyze text to extract keywords, check grammar, detect topics, measure readability, and classify sentiment/emotions using NLP models.\u003c/details\u003e | API Key | Medium |\n| [DeepAI Text Generator](https://deepai.org/machine-learning-model/text-generator) | \u003cdetails\u003e\u003csummary\u003eGPT-based text generation\u003c/summary\u003eGenerate realistic and human-like text based on a given prompt using DeepAI’s generative language model.\u003c/details\u003e | API Key | Medium |\n\n---\n\n## Tracking \u0026 Logistics\n\n| API | Description | Auth | Difficulty |\n|-----|-------------|------|------------|\n| [AfterShip](https://developers.aftership.com/reference) | \u003cdetails\u003e\u003csummary\u003eShipment tracking across multiple carriers\u003c/summary\u003eTrack packages from various shipping carriers and provide delivery updates in your applications.\u003c/details\u003e | API Key | Easy |\n| [17track](https://www.17track.net/en/apili","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkeploy%2Fpublic-apis-collection","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkeploy%2Fpublic-apis-collection","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkeploy%2Fpublic-apis-collection/lists"}