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.
- GitHub: https://github.com/topics/openapi
- Wikipedia: https://en.wikipedia.org/wiki/OpenAPI_Specification
- Repo: https://github.com/OAI/OpenAPI-Specification
- Created by: OpenAPI Initiative, Tony Tam, Darrel Miller, Mike Ralphson, Ron Ratovsky, Uri Sarid, Jason Harmon
- Released: August 10, 2011
- Related Topics: json-schema, raml, rest-api,
- Aliases: open-api, swagger-spec, swagger-specification, openapi-spec, openapi-specification, open-api-specification, oas, openapi-description,
- Last updated: 2026-07-05 00:18:41 UTC
- JSON Representation
https://github.com/apprexp/govsg2oas
A project which aims to convert existing government public-facing APIs into the OpenAPI 3 specs.
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Last synced: 12 Apr 2025
https://github.com/antoniojvargas/smartcar
A Node.js and Express API that simulates Smartcar vehicle endpoints, including vehicle info, doors, fuel, battery, and engine control. Includes Swagger (OpenAPI) documentation and unit tests with Mocha, Chai, and Sinon.
chai express mocha nodejs openapi rest-api sinon smartcar swagger
Last synced: 13 Apr 2026
https://github.com/xuhaojun/linebotsdkx
C# line bot sdk
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Last synced: 14 Jan 2026
https://github.com/kanryu/validagen
A validator generator for structs/maps for your go applications.
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https://github.com/martinm85/openapi-dotnet-tools
Reads Open API document, generates Markdown files and markmap files
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Last synced: 12 Apr 2025
https://github.com/tbosak/specbridge
Turn OpenAPI Specs into MCP Tools
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Last synced: 14 Apr 2026
https://github.com/jeremi/registry-docs
Canonical documentation website for the registry project family.
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https://github.com/toshiemon18/schemar
Design and generate OpenAPI schema with Ruby models
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https://github.com/harunrrayhan/todo-node-swagger-api
Node API service using OpenAPI (Swagger)
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https://github.com/biplobpustcse/chat-bot
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https://github.com/openxapi/binance-py
Python client for Binance API
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https://github.com/soldarlabs/oapi-litegraph-nodegen
Generate dynamic and callable Litegraph nodes from OpenAPI specifications, enabling seamless API integration in a visual programming environment.
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https://github.com/redte-ch/redistributeme
Impact of taxes and social benefits on disposable income
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https://github.com/arctir/flightdeck-api
The Flightdeck API specification
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https://github.com/johejo/go-github-rest-api
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https://github.com/merkys/openapi-3to2
Convert OpenAPI v3 descriptions to v2
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https://github.com/block65/openapi-codegen
Opinionated OpenAPI Typescript code generator
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https://github.com/hurricanemark/aspnetwebapi
aspnet core webapi & openapi swaggerui
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https://github.com/soenneker/soenneker.asana.httpclients
A thread-safe singleton HttpClient for Asana's OpenAPI integration.
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https://github.com/soenneker/soenneker.calendly.httpclients
A thread-safe singleton HttpClient for Calendly's OpenAPI integration.
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https://github.com/colorfulcompany/node-indeed-job-campaign-api-client
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A thread-safe singleton HttpClient for DropboxSign's OpenAPI integration.
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https://github.com/vicradon/petstore
A modified version of the Petstore API offered by SwaggerHub
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https://github.com/walter0329/attributes
🔍 Validate method parameters, return values, and property access in PHP 8.3+ with compact, reusable attributes for efficient, framework-agnostic checking.
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https://github.com/borolgs/axum-examples
Examples of using the Axum web framework
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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.
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https://github.com/soenneker/soenneker.trulioo.httpclients
A thread-safe singleton HttpClient for Trulioo's OpenAPI integration.
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https://github.com/aahoughton/oav
HTTP-aware OpenAPI 3.0/3.1/3.2 validator with JSON Schema 2020-12 codegen compiler
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https://github.com/slaterhaus/openapi-sdk-generator
Generate TypeScript SDKs, Postman collections, GraphQL schemas, and cURL commands from OpenAPI specifications
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https://github.com/kemalkochekov/effectivemobiletestproject
Effective Mobile company's Test Project
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https://github.com/griptape-ai/griptape-cloud-python-client
Python client for Griptape Cloud APIs
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https://github.com/developerkunal/openmorph
OpenMorph: Modern CLI & TUI for safe, interactive OpenAPI vendor extension key transforms with colorized diffs, dry-run, and config merging.
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Last synced: 05 May 2026
https://github.com/soenneker/soenneker.make.openapiclient
A .NET client generated from the Make OpenAPI schema, updated daily
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Last synced: 25 Jun 2026
https://github.com/rspereiratech/openapi-collection-generator-core
Core library for generating API collections from OpenAPI specifications.
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Last synced: 29 May 2026
https://github.com/subzeroid/hikerapi-mcp
MCP server for HikerAPI — 105+ Instagram API tools auto-generated from the OpenAPI spec. Use from Claude Code, Claude Desktop, Cursor, OpenAI Codex, Zed, Windsurf.
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https://github.com/apocys/mcp-connector-platform
Transform OpenAPI documentation into hosted MCP servers with governance controls and Gemini AI safety review
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https://github.com/shivam-dhir/unified-payment-gateway
A scalable backend microservice built with Spring Boot to handle secure online payments, supporting multiple payment gateways, real-time processing, and multi-currency transactions with high availability and security.
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https://github.com/takeruun/fastify-sample
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https://github.com/romanow/openapi-generation
Public report about OpenAPI generator template customization
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https://github.com/soenneker/soenneker.together.openapiclient
A .NET client generated from the Together AI OpenAPI schema, updated daily
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Last synced: 06 May 2026
https://github.com/go-api-libs/notion
Go library for the notion.
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Last synced: 06 May 2026
https://github.com/soenneker/soenneker.intercom.openapiclient
A .NET client generated from the Intercom OpenAPI schema, updated daily
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Last synced: 07 May 2026
https://github.com/soenneker/soenneker.fastly.openapiclient
A .NET client generated from the Fastly OpenAPI schema, updated daily
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Last synced: 07 May 2026
https://github.com/soenneker/soenneker.bunny.openapiclientutil
A thread-safe utility for obtaining Bunny's OpenApiClient singleton.
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Last synced: 27 Jun 2026
https://github.com/zejnilovic/gh-openapi-preview
A Chrome extension that adds an OpenAPI Preview tab to GitHub’s file view for OpenAPI specs
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Last synced: 08 May 2026
https://github.com/apimatic/skills
AI agent skills for APIMatic. Build, configure, and publish developer portals, generate SDKs, and optimize OpenAPI specs from Claude Code, Cursor, and Codex.
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Last synced: 29 Jun 2026
https://github.com/fern-api/action-postman-sync
A GitHub Action for updating a Postman Collection within a Workspace
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Last synced: 08 May 2026
https://github.com/go-api-libs/jobicy
Go library for the Remote Jobs API/RSS Feed. Discover and integrate a diverse range of remote job listings with Jobicy's public API. This API offers the latest remote job opportunities across various industries and regions, making it a valuable resource for developers and businesses looking to enhance their job feed platforms.
api api-client api-library go golang integration job-search job-search-website jobicy jobicy-api jobs jobsearch openapi openapi3
Last synced: 08 May 2026
https://github.com/viniciusferreira7/url-shortener-api
A high-performance URL shortener API built with modern technologies including Elysia, Bun runtime, PostgreSQL, Redis, and Better Auth.
better-auth bun clean-architecture ddd docker drizzle-orm elysia openapi postgresql redis
Last synced: 31 Jan 2026
https://github.com/wherejuly/60-1-oas-markdown-merger
Expand the OpenAPI JSON specification `description` fields by merging the arbitrary markdown files translated to HTML.
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Last synced: 07 Feb 2026
https://github.com/bitfl0wer/p2-docs-site
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https://github.com/tpdlshdmlrkfmcla/sparta_coding
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https://github.com/tryagi/runway
C# SDK based on Runway OpenAPI specification
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https://github.com/abdallahsaber065/openapi-tester-frontend
A clean, user-friendly frontend application for testing any OpenAPI-compliant API dynamically. This tool loads your API specification from OpenAPI JSON files or URLs and provides an intuitive interface for testing all endpoints without needing external tools like Postman.
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Last synced: 09 May 2026
https://github.com/nithidol/swagger-converter
Swagger specifications and convert to AsciiDoc and PDF with a custom font.
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Last synced: 26 Feb 2026
https://github.com/etherman-os/backcraft
describe your idea, get a working backend
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Last synced: 01 Jun 2026
https://github.com/patarapolw/ts-openapi-fastify
Fastify with OpenAPI and typescript-json-schema example
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Last synced: 02 Feb 2026
https://github.com/cstrp/telestash
A Telegram-powered storage build with nuxt 4 & tauri (desktop app for all platforms).
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https://github.com/youhad08/e-bank-backend-springboot
Digital banking system backend developed with Spring Boot. Includes customer and account management, operations, and REST APIs.
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Last synced: 15 Apr 2026
https://github.com/soenneker/soenneker.cohere.openapiclient
A .NET client generated from the Cohere AI OpenAPI schema, updated daily
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Last synced: 09 May 2026
https://github.com/soenneker/soenneker.plaid.openapiclientutil
A thread-safe utility for obtaining Plaid's OpenApiClient singleton.
api client csharp dotnet kiota openapi openapiclient openapiclientutil plaid plaidopenapiclientutil singleton util
Last synced: 31 May 2026
https://github.com/anmolverma404/ai-image-generation
📌AI Image Generation🔸DALL-E AI🔸Open AI 🧠
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https://github.com/omermecitoglu/openapi-code-generator
OpenAPI code generator
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Last synced: 26 Feb 2026
https://github.com/nachotoast/uoa-discords
Services and projects of UoA Discords.
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Last synced: 29 Jan 2026
https://github.com/soenneker/soenneker.rebrickable.openapiclient
A Rebrickable .NET client generated from the Rebrickable OpenAPI schema, updated daily
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Last synced: 15 May 2026
https://github.com/jmpijll/make-code-mode-mcp
Code-mode MCP server for the Make.com Web API v2 — two tools (search + execute), QuickJS WASM sandbox, ~467 operations behind one flat make.* namespace, scope-aware 401/403 errors, stdio + Streamable HTTP transports.
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https://github.com/lsanchezvv/swagger-express-api-baseline
Baseline to create a swagger-node-runner project. Uses the openApi standard.
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https://github.com/ubill-ge/sdk-php
PHP SDK for working with the UBill API
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https://github.com/soenneker/soenneker.plaid.httpclients
A thread-safe singleton HttpClient for Plaid's OpenAPI integration.
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https://github.com/soenneker/soenneker.discord.httpclients
A thread-safe singleton HttpClient for Discord's OpenAPI integration.
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Last synced: 06 Jun 2026
https://github.com/marcellharmaci/plantfriend-spring
🌱 The Plant Friend project's backend 🌱 implemented in Spring Boot using Java and Maven
java maven openapi spring-boot
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https://github.com/soenneker/soenneker.twilio.openapiclientutil
A thread-safe utility for obtaining Twilio's OpenApiClient singleton.
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Last synced: 07 Jun 2026
https://github.com/soenneker/soenneker.calcom.httpclients
A thread-safe singleton HttpClient for CalCom's OpenAPI integration.
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https://github.com/soenneker/soenneker.openai.openapiclient
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https://github.com/soenneker/soenneker.telnyx.clientutil
An async thread-safe singleton for the Telnyx OpenApiClient
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https://github.com/soenneker/soenneker.trustedform.certificates.clientutil
An async thread-safe singleton for ActiveProspect TrustedForm Certificate OpenApiClient
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Last synced: 09 May 2026
https://github.com/soenneker/soenneker.openaq.httpclients
A thread-safe singleton HttpClient for OpenAq's OpenAPI integration.
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Last synced: 07 Jun 2026
https://github.com/liborm85/swagger-ui-offline-packager
Generates a self-contained HTML file from an OpenAPI definition, rendering it in Swagger UI for offline API documentation.
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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.
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https://github.com/gabrielcenteiofreitas/express-zod-openapi-typed
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https://github.com/orsinium-labs/openapi
Go package with type definitions for generating OpenAPI documentation.
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https://github.com/sosokker/go-chi-oapi-codegen-todolist
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https://github.com/robsonlmds/java-screenmatch
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https://github.com/libninjacom/postman-go
Postman client, generated from the OpenAPI spec
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https://github.com/soenneker/soenneker.openhands.httpclients
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https://github.com/nasrmohammad4804/ticket-supporting-system
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