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An open API service indexing awesome lists of open source software.

OpenAPI Specification

The OpenAPI Specification (OAS), previously known as the Swagger Specification, is a specification for a programming language-agnostic, machine-readable interface definition language for describing, producing, consuming, and visualizing web services. OpenAPI documents describe API services and are represented in YAML or JSON formats.

https://github.com/planet-a-ventures/affinity-client-python

API client for Affinity (www.affinity.co)

affinity client openapi python

Last synced: 01 May 2026

https://github.com/yinchi/openapi-cli

CLI for working with APIs using the OpenAPI specifications

openapi openapi-cli python-click

Last synced: 01 May 2026

https://github.com/webitel/webitel-openapi-client-go

Webitel OpenAPI Client for Go

go openapi swagger webitel

Last synced: 01 May 2026

https://github.com/straylittlepunk/deepl

Openapi auto generated deepl api client

deepl openapi rust

Last synced: 01 May 2026

https://github.com/alexcheng1982/llm-openapi-function-spring-ai-generator

Generate Spring AI functions from OpenAPI spec

ai llm openapi openapi-generator spring spring-ai

Last synced: 01 May 2026

https://github.com/duongnguyen321/open-api

Open API for coder, programing

country nestjs openapi

Last synced: 01 May 2026

https://github.com/mlafeldt/go-launchdarkly

Go client library for the LaunchDarkly REST API

feature-flags feature-toggles golang launchdarkly openapi swagger

Last synced: 02 May 2026

https://github.com/merkys/openapi-3to2

Convert OpenAPI v3 descriptions to v2

openapi perl5

Last synced: 02 May 2026

https://github.com/edavis25/crypto_history_api

API for retrieving personally scraped historic crypto price data from various exchanges.

crypto cryptocompare cryptocurrency influxdb laravel openapi openapi3 php poloniex

Last synced: 02 May 2026

https://github.com/kleister/kleister-go

Kleister: SDK for Golang

go golang kleister minecraft openapi sdk swagger

Last synced: 02 May 2026

https://github.com/majid-l/swagger-ui-docs

Swagger UI constructed using an OpenAPI Specification document containing the definition for an e-commerce RESTful API service that I've created.

openapi swagger-ui yaml

Last synced: 02 May 2026

https://github.com/soenneker/soenneker.shippo.openapiclient

A .NET client generated from the Shippo OpenAPI schema, updated daily

api client csharp dotnet kiota openapi openapiclient shippo shippoopenapiclient

Last synced: 07 May 2026

https://github.com/colorfulcompany/node-indeed-job-campaign-api-client

Indeed Job Campaign API Client with automatically OAuth Token refreshing

foundation indeed nodejs oauth openapi

Last synced: 02 May 2026

https://github.com/soenneker/soenneker.notion.httpclients

A thread-safe singleton HttpClient for Notion's OpenAPI integration.

csharp dotnet generated httpclient httpclients notion notionopenapihttpclient openapi singleton

Last synced: 05 Jun 2026

https://github.com/soenneker/soenneker.fastly.httpclients

A thread-safe singleton HttpClient for Fastly's OpenAPI integration.

api csharp dotnet fastly fastlyopenapihttpclient httpclient httpclients openapi openapiclient singleton

Last synced: 04 Jul 2026

https://github.com/instantan/web

Build robust web applications with pure Go. No external dependencies, just the power of the standard library.

openapi openapi3 redoc scalar swagger typescript-generator

Last synced: 03 May 2026

https://github.com/soenneker/soenneker.unified.httpclients

A thread-safe singleton HttpClient for Unified's OpenAPI integration.

api csharp dotnet httpclient httpclients openapi singleton unified unifiedopenapihttpclient

Last synced: 13 May 2026

https://github.com/duquejo/quarkus-tokencache-microservice

Resilient-ready external token cacheable service Proof of concept

java openapi quarkus redis

Last synced: 03 May 2026

https://github.com/nebil175/lcu_dumper

🔍 Discover and extract League Client Update data easily with LCU Dumper, a fast, cross-platform CLI that outputs selected API endpoints to JSON files.

cli data-dump http json league-of-legends openapi python reverse-engineering swagger tooling

Last synced: 03 May 2026

https://github.com/bizrockman/modelcontextstandard

A minimal, protocol-agnostic standard to connect LLMs like drivers with external tools using existing APIs and formats like OpenAPI, HTTP, AS2, or CAN-Bus. No custom stacks. Just structured function calls.

agent-framework ai-tools design driver fastapi function-calling integration llm llmos llms mcp mcs openapi protocol

Last synced: 04 May 2026

https://github.com/soenneker/soenneker.trulioo.httpclients

A thread-safe singleton HttpClient for Trulioo's OpenAPI integration.

csharp dotnet httpclient httpclients openapi singleton trulioo truliooopenapihttpclient

Last synced: 09 Jun 2026

https://github.com/speakeasy-sdks/template-speakeasy-bar

A template for the Speakeasy Bar starter SDK.

managed-sdk openapi openapi3 sdk speakeasy-api vendor-extensions

Last synced: 04 May 2026

https://github.com/slaterhaus/openapi-sdk-generator

Generate TypeScript SDKs, Postman collections, GraphQL schemas, and cURL commands from OpenAPI specifications

api-client cli-tool code-generator graphql openapi postman swagger typescript

Last synced: 04 May 2026

https://github.com/roxyapi/sdk-typescript

TypeScript SDK for RoxyAPI. Western astrology, Vedic kundli, tarot, numerology, horoscope, birth chart, I Ching, biorhythm, crystals, dream, and angel number APIs. One key, 10 domains, fully typed. AI agent and MCP ready.

ai-agents angel-numbers astrology-api biorhythm-api birth-chart-api crystals dream-interpretation horoscope-api i-ching-api kundli-api mcp-server model-context-protocol nodejs numerology-api openapi roxyapi spiritual-api tarot-api typescript-sdk vedic-astrology-api

Last synced: 16 May 2026

https://github.com/sosokker/go-chi-oapi-codegen-todolist

Go-Nextjs todolist application with chi server oapi-codegen as handlers template + sqlc for type-safe code from SQL

go golang openapi openapi-codegen rest-api

Last synced: 04 May 2026

https://github.com/esn8der/tour-of-heroes-api

API en Java usando spring boot para el proyecto del tutotrial de angular Tour Of Heroes

java openapi spring-boot spring-framework swagger swagger-api swagger-ui

Last synced: 04 May 2026

https://github.com/robsonlmds/java-screenmatch

Este projeto é uma aplicação Java que utiliza uma API para buscar informações sobre séries de TV e seus episódios, permitindo que os dados sejam armazenados e listados através de um repositório.

api java maven-plugin openapi spring-boot

Last synced: 04 May 2026

https://github.com/lsegg/delilah-resto

This project proposes the creation of an online ordering system for a restaurant.

api api-rest dotenv express nodejs nodemon openapi

Last synced: 04 May 2026

https://github.com/drewalth/openapi-generator

Generate an OpenAPI Spec file from ORM model definitions

eloquent generator openapi orm sequelize spring-boot

Last synced: 05 May 2026

https://github.com/swimmwatch/openapi-compare-version

A GitHub Action for comparing OpenAPI specifications version.

github-actions openapi openapi-specification

Last synced: 05 May 2026

https://github.com/rickyli79/egg-openapi-router

init `router` and connect `controller` by Openapi-doc. validate the request and response by Openapi-doc

egg egg-plugin eggplugin openapi route schema valid

Last synced: 05 May 2026

https://github.com/marc0franc0/exchangeratesapi

API REST que brinda información actualizada sobre las tasas de cambio de USD y otras monedas en Argentina. También sobre el valor de acciones en USD.

java openapi spring-boot swagger-ui

Last synced: 05 May 2026

https://github.com/ferror/openapi-coverage

Symfony Command that calculates Open API documentation coverage

openapi php symfony

Last synced: 05 May 2026

https://github.com/soenneker/soenneker.together.openapiclient

A .NET client generated from the Together AI OpenAPI schema, updated daily

client csharp dotnet kiota openapi openapiclient together togetheropenapiclient

Last synced: 06 May 2026

https://github.com/skibidi-crypto/quarkus-openapi-problem

Standardized error responses for Quarkus REST APIs using Problem Details (RFC9457)

error exception jackson jakarta-rest jaxrs json openapi problem quarkus-extension resteasy rfc9457

Last synced: 06 May 2026

https://github.com/soenneker/soenneker.cloudinary.openapiclient

A .NET client generated from the Cloudinary OpenAPI schema, updated daily

api client cloudinary cloudinaryopenapiclient csharp dotnet kiota openapi openapiclient

Last synced: 06 May 2026

https://github.com/wacko1805/victorian-covid-stats

An open API of COVID statistics in Victoria, Australia. The data is ripped from coronavirus.vic.gov.au

api aussie australia australian corona coronavirus covid-19 covid-19-data covid-api covid-virus covid19-data json open-api open-source openapi php php-api simple-html-dom victoria

Last synced: 07 May 2026

https://github.com/soenneker/soenneker.fastly.openapiclient

A .NET client generated from the Fastly OpenAPI schema, updated daily

api client csharp dotnet fastly fastlyopenapiclient kiota openapi openapiclient

Last synced: 07 May 2026

https://github.com/layoric/exampleopenaiplugin

WIP Example OpenAi Plugin support for ServiceStack

openai openapi servicestack servicestack-plugin

Last synced: 07 May 2026

https://github.com/ztrehagem/openapi-to-fastify-schema

Generate schema objects for Fastify from OpenAPI documents

fastify fastify-library openapi openapi-codegen schema-first

Last synced: 07 May 2026

https://github.com/go-api-libs/freepublicapis

Go library for the Free Public APIs API. The Free Public APIs API provides up-to-date information on every free public API listed on freepublicapis.com. Perfect for developers, students and hobbyists. It is limited to 1000 requests a day, if you need more, feel free to reach out.

api api-client api-library freepublicapis freepublicapis-api go golang integration openapi openapi3

Last synced: 07 May 2026

https://github.com/romanow/aggregator-by-tags

OpenAPI aggregator by Tags

aggregator merge-openapi openapi

Last synced: 08 May 2026

https://github.com/debitoor/express-openapi

Express Open API

debitoor express openapi

Last synced: 08 May 2026

https://github.com/bindu-1805/list_items

This project lists items by making a request to JSON Placeholder using React.

json openapi reactjs vercel-deployment

Last synced: 08 May 2026

https://github.com/not-three/api

The !3 api, written in typescript, with the NestJS framework.

api docker hastebin nestjs openapi pastebin swagger

Last synced: 08 May 2026

https://github.com/todofixme/openapi-showcases

How different OpenAPI generators might help to build stable REST APIs.

kotlin openapi openapi-spec spring-boot springdoc-openapi

Last synced: 08 May 2026

https://github.com/marioruiz/api-testing-example

Example using RSpec and nice_http to test REST APIs. (Uber API and Reqres API)

openapi openapi3 rspec ruby swagger test testing

Last synced: 08 May 2026

https://github.com/ntrv3390/pdfninja

Say hii to your pdf with pdfNinja

ai nextjs openapi

Last synced: 08 May 2026

https://github.com/skuong/rclone-rc-api-docs

Easy-to-read Rclone RC API docs using Scalar

api docs openapi rclone scalar

Last synced: 10 Jun 2026

https://github.com/tpdlshdmlrkfmcla/sparta_coding

[국비교육] 스파르타코딩클럽 안드로이드 앱 개발자 과정 주차별 학습 정리

android coroutines kotlin mvvm openapi retrofit

Last synced: 09 May 2026

https://github.com/ramanks19/the-complete-spring-boot-development-bootcamp

Contains workbook and practice exercise of the Udemy course - The Complete Spring Boot Development Bootcamp (by Learn The Part Inc.)

java mockito open openapi spring-boot spring-security swagger thymeleaf

Last synced: 09 May 2026

https://github.com/mermade/api-registry

Own-label API registry which powers APIs.guru

api apiblueprint apis openapi postman postman-collection raml registry repository

Last synced: 09 May 2026

https://github.com/toliyansky/openapi-spring-generator-example

Example for dev.to article

java openapi spring

Last synced: 09 May 2026

https://github.com/soenneker/soenneker.n8n.openapiclient

A .NET client generated from the N8N OpenAPI schema, updated daily

client csharp dotnet kiota n8n n8nopenapiclient openapi openapiclient

Last synced: 09 May 2026

https://github.com/thalida/openapi-docs-viewer

Display interactive OpenAPI schema documentation in VSCode

documentation openapi vscode vscode-extension

Last synced: 09 May 2026

https://github.com/soenneker/soenneker.openaq.openapiclient

A .NET client generated from the OpenAQ OpenAPI schema, updated daily

client csharp dotnet generated kiota openapi openapiclient openaq openaqopenapiclient

Last synced: 09 May 2026

https://github.com/axel7083/electron-vite-react-openapi-generator

electron template using openapi-generator for IPCs communication

electron ipc openapi openapi-generator typescript

Last synced: 09 May 2026

https://github.com/soenneker/soenneker.stripe.openapiclient

A Stripe .NET client generated from their OpenAPI schema, updated daily

client csharp dotnet openapi openapiclient stripe stripeopenapiclient

Last synced: 02 Jun 2026

https://github.com/soenneker/soenneker.zoho.openapiclient

A .NET client generated from the Zoho CRM OpenAPI schema, updated daily

api client crm csharp dotnet kiota openapi openapiclient zoho zohoopenapiclient

Last synced: 09 May 2026

https://github.com/soenneker/soenneker.mailgun.openapiclient

A .NET client generated from the Mailgun OpenAPI schema, updated daily

api client csharp dotnet kiota mailgun mailgunopenapiclient openapi openapiclient

Last synced: 09 May 2026

https://github.com/soenneker/soenneker.openai.openapiclient

A .NET client generated from the OpenAI OpenAPI schema, updated daily

api client csharp dotnet kiota openai openaiopenapiclient openapi openapiclient

Last synced: 09 May 2026

https://github.com/ankitboghra/openapi-watchgod-merger

Merge OpenAPI and Watchgod responses to track latest status of a deposit/withdraw transaction on Ethereum Chain and Polygon Chain.

ethereum openapi polygon watchgod web3

Last synced: 09 May 2026

https://github.com/charconstpointer/ihateannotations

Example combining buf, Protobuf, gRPC, gRPC Gateway and OpenAPI

buf grpc grpc-gateway grpc-go grpc-server openapi swagger

Last synced: 09 May 2026

https://github.com/pccomponentes/documentation-bundle

The documentation bundle manages the required routes and templates in order to show documentation both in OpenApi and AsyncApi formats.

asyncapi openapi symfony-bundle

Last synced: 09 May 2026

https://github.com/lornajane/apitapviz

Simple visualisation of OpenAPI Arazzo files as Markdown or mermaidjs. (Mirror of the main apitapviz repo)

arazzo cli openapi vizualisation

Last synced: 09 May 2026

https://github.com/flkt-crnpio/fastapi-sandbox

Pruebas para crear la documentacion de una API bajo los protocolos de OpenAPI utilizando el framework de FastAPI

fastapi openapi python python3

Last synced: 10 May 2026

https://github.com/jaqx0r/rules_oapi_codegen

Bazel rules for generating API service handlers with `oapi-codegen`.

bazel oapi-codegen openapi rules yaml

Last synced: 10 May 2026

https://github.com/hskrasek/arazzo-parser

Parse OpenAPI Arazzo specifications in PHP

arazzo arazzo-specification openapi

Last synced: 11 May 2026

https://github.com/grparry/swaggertomcp

🔁 Convert Swagger/OpenAPI specs into Model Context Protocol (MCP) tool definitions for agentic AI compatibility.

agentic-ai api-discovery cli-tool developer-tools llm mcp model-context-protocol openapi swagger tool-registry

Last synced: 11 May 2026

https://github.com/pidelport/onfido-openapi-rust

Onfido OpenAPI client for Rust

onfido onfido-api openapi openapi-client rust

Last synced: 11 May 2026

https://github.com/opensourceways/cora

Command collection for all kinds of Services in Open Source Community

command-line-tool openapi

Last synced: 11 May 2026

https://github.com/sookwalinga/ask_sam

Web app consuming the openAI GPT3 api. Feel free to "ask sam anything" 😉

gpt3 javascript openapi

Last synced: 11 May 2026

https://github.com/soenneker/soenneker.algolia.openapiclientutil

A thread-safe utility for obtaining Algolia's OpenApiClient singleton.

algolia algoliaopenapiclientutil api client csharp dotnet kiota openapi openapiclientutil singleton util

Last synced: 11 May 2026

https://github.com/soenneker/soenneker.loops.clientutil

An async thread-safe singleton for Loops OpenApiClient

client clientutil csharp dotnet httpclient loop loops loopsclientutil openapi util

Last synced: 11 Jun 2026

https://github.com/soenneker/soenneker.posthog.openapiclientutil

A thread-safe utility for obtaining PostHog's OpenApiClient singleton.

api client csharp dotnet kiota openapi openapiclientutil posthog posthogopenapiclientutil singleton util

Last synced: 16 May 2026

https://github.com/libninjacom/mangadex-rs

mangadex client, generated from the OpenAPI spec

mangadex openapi rust

Last synced: 13 May 2026

https://github.com/bretterer/openapi-codegen

Extendable Swagger Code Generator for PHP

codegen codegeneration openapi openapi-specification

Last synced: 13 May 2026

https://github.com/libninjacom/petstore-go

Petstore client, generated from the OpenAPI spec

golang openapi petstore

Last synced: 14 May 2026

https://github.com/foncki/time-complexity-calculator

This Chrome extension allows you to easily calculate the time complexity of a function. This tool is useful for software developers looking to optimize their code and improve its performance. With this extension, you can quickly and easily determine the efficiency of your functions and make informed decisions about how to optimize them.

chrome-extension html openapi vanilla-javascript

Last synced: 14 May 2026

https://github.com/libninjacom/bump-rs

Bump.sh client, generated from the OpenAPI spec

bump openapi rust

Last synced: 14 May 2026

https://github.com/foospidy/postman-to-openapi-docker

Run postman-to-openapi from a docker container

openapi postman postman-collection

Last synced: 14 May 2026

https://github.com/gibtang/agent-utils

One API key. Agent-native utilities for AI agents. File hosting, PII redaction, dead letter queues, and more.

agent-tools ai-agents api dead-letter-queue file-hosting human-in-the-loop llm mcp nextjs openapi pii-redaction typescript

Last synced: 12 Jun 2026

https://github.com/n8n-code/n8n-nodes-odoo-v17

Odoo v17 is an all-in-one open-source ERP for managing all aspects of business in a single platform

api automation n8n n8n-community-node n8n-node odoo-v17 openapi swagger workflow

Last synced: 14 Jun 2026

OpenAPI Specification Awesome Lists
best-of-web-python 848 awesome-integration 686 awesome-jsonschema 94 awesome-corporate-standards 77
OpenAPI Specification Categories
Papers 726 Projects 422 Integration Patterns 200 Resources 191 Django Utilities 161 Adoption 160 Others 116 Third-party Web APIs 93 Web Testing 85 Authorization & Authentication 83 Web Frameworks 75 Flask Utilities 68 Web Scraping & Crawling 48 OpenAPI Utilities 44 HTTP Clients 41 Videos 33 Articles 29 Markdown 28 Branchenspezifisch 26 HTML Processing 25