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/soenneker/soenneker.elevenlabs.openapiclient

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

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

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

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

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

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Last synced: 02 Apr 2026

https://github.com/jcs090218/swagger-it

Automatically generate the swagger.io yaml file for your project.

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Last synced: 17 Apr 2026

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

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

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Last synced: 06 Jun 2026

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

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

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

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

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https://github.com/k-kinzal/oas-fake-php

Intercept HTTP requests, validate against OpenAPI schemas, and generate fake responses for testing

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https://github.com/humbertodias/rust-rweb-openapi

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https://github.com/adilrasheed139/lumilens-ai

LumiLens is an AI-powered platform designed to revolutionize virtual tourism by delivering immersive, interactive experiences that blend text, image, and video storytelling. With LumiLens, users can explore cultural sites, meet historical figures, and relive key events through AI-generated.

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https://github.com/rehanvdm/pets-frontend

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https://github.com/zoobz-io/rocco

Type-safe HTTP framework for Go with automatic OpenAPI generation

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https://github.com/mowatermelon/mw2-antd

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https://github.com/damirscorner/20250314-dotnet-api-file-upload

Sample project for 'Web API file upload with metadata' blogpost

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https://github.com/derkork/quarkus-kotlin-openapi

A generator for OpenAPI servers, clients and test-clients for Quarkus with a focus on developer productivity and type-safeness

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

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

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https://github.com/vicjun22/contract-first-with-swagger_spring-boot

This repository demonstrates how to integrate Swagger into a Spring Boot project to generate API documentation.

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

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

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

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

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https://github.com/eukolos/product-service

Basic API for using microservices' cases

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https://github.com/dpritchett/helloextend-ruby-client

💎 Ruby HTTP API client gem for the extend.com warranty service API

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https://github.com/idarkq/redlight-events-manager

A monorepo for the redlight events manager project

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https://github.com/bero158/glslabel

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https://github.com/nsubrahm/openshift-demo-apis

API documentation for OpenShift demos

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https://github.com/mimikos-io/mimikos

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https://github.com/soenneker/soenneker.runners.cloudflare.openapiclient

Automatically updates the Soenneker.Cloudflare.OpenApiClient package

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https://github.com/tyn-tian/belajar-open-api

Documentation I am learning OpenAPI from @ProgrammerZamanNow.

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https://github.com/neurocad-eu/neurocad-api-docs

Versioned public API contracts, schemas, integration guides, and SDK references for NeuroCAD.

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https://github.com/marcominerva/aspnetcore9openapi

A sample that showcases how to use OpenAPI support provided by .NET 9.0

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

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

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

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

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

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https://github.com/woosmap/openapi-specification

OpenAPI specification for Woosmap Platform

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https://github.com/m1n64/yii3-stock-api

Yii3-based REST API showcase focused on stock and city domain design

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https://github.com/legalize-dev/legalize-sdks

Official client libraries for the Legalize API — legal texts as structured, versioned data.

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https://github.com/pourjanali/dasht-api-docs

Interactive documentation for Dasht API version 104, built with Swagger UI. This repository hosts the static files necessary to publish comprehensive API documentation through GitHub Pages, providing developers with an intuitive interface to explore endpoints, test requests, and understand request/response schemas.

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

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

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

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

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

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

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

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

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https://github.com/go-api-libs/cat-facts

Go library for the Cat Fact API. An API that shows different Cat Facts!

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

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

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

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

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

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

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

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

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

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

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Last synced: 07 Jun 2026

https://github.com/soenneker/soenneker.cloudflare.utils.client

An async thread-safe singleton for the Cloudflare OpenApiClient

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

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

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Last synced: 11 Jun 2026

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

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

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Last synced: 04 Jul 2026

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

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

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Last synced: 08 May 2026

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

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

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Last synced: 04 Jul 2026

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

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

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Last synced: 23 Apr 2026

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

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

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Last synced: 23 Apr 2026

https://github.com/shearichard/flask-for-redux-testing

Flask based RESTFUL API to use for testing Redux Toolkit against.

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Last synced: 23 Apr 2026

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

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

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Last synced: 14 May 2026

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

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

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Last synced: 08 May 2026

https://github.com/oxhq/oxcribe

Runtime-first Laravel package that enriches routes with Oxinfer static analysis

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Last synced: 23 Apr 2026

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

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

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Last synced: 27 May 2026

https://github.com/arkptz/mitm2openapi

Convert mitmproxy flow dumps and HAR files to OpenAPI 3.0 — fast Rust alternative to mitmproxy2swagger with HAR support

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Last synced: 27 Apr 2026

https://github.com/mohammadbekran/food-management-app

A food delivery and management system built with NestJS, TypeScript, and PostgreSQL.

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Last synced: 24 Apr 2026

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

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

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Last synced: 06 Jun 2026

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

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

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Last synced: 16 May 2026

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

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

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Last synced: 06 Jun 2026

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

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

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

An async thread-safe singleton for DNSimple OpenApiClient

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

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

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Last synced: 02 May 2026

https://github.com/definancy/definancy-spec

Definancy contract — OpenAPI wire spec + cross-language conformance suite

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Last synced: 06 Jun 2026

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

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

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

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

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https://github.com/cl0v1s/openapi-mcpify

Turn any OpenAPI spec into a live MCP server — with built-in confirmation prompts for mutating operations.

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https://github.com/tdspora/tdm_rulesgen

FastAPI service for safe rule parsing, compilation, preview execution, and sandbox-backed dataset generation.

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https://github.com/amandeepkaur1804/weather

This web app fetches and displays real-time weather data for any city using the OpenWeatherMap API with a dynamic UI.

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https://github.com/merkys/openapi-render

Rendering tools for OpenAPI v3

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

benchling client, generated from the OpenAPI spec

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

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

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https://github.com/saibotsivad/glopen-routes

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

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

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https://github.com/tonystrawberry/playground.openapi.generator

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https://github.com/netgen/openapi

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