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: 2026-07-02 00:22:14 UTC
JSON Representation

https://github.com/go-api-libs/remote-ok-jobs

Go library for the Remote OK Jobs API. Remote OK is the #1 remote-only jobs board on the web. It has over 30,000+ remote job listings, adding new ones every day. With this API, now you can build apps with our data feed which covers 80% of remote jobs on the web.

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https://github.com/seabed-labs/drip-client

Generated API Clients for the Drip Backend

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Last synced: 16 Apr 2026

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

Onfido OpenAPI client for Rust

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https://github.com/g-nelson1/tiingo-openapi

Tiingo OpenAPI Doc

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Last synced: 01 Mar 2026

https://github.com/vaelixbank/vaelix-exchange

The Vaelix Exchange Open Source Platform

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Last synced: 16 Apr 2026

https://github.com/jenderenco/inkifyai-doc-generator

AI-powered tool that generates comprehensive, human-readable documentation from OpenAPI/Swagger specifications using large language models.

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https://github.com/daymade/microservices-management-platform

Service Catalog Demo is a microservice API management platform written using golang and vue, where users can manage services and versions through a frontend dashboard.

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https://github.com/opensourceways/cora

Command collection for all kinds of Services in Open Source Community

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https://github.com/ndrsg/openapi-trait

Use rust macros to derive a trait from OpenAPI that you can implement

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https://github.com/controlplane-com/types-ts

Control Plane TypeScript type definitions for type-safe API interactions

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https://github.com/mmmylnikov/django-ninja-api-template

Flexible Django Ninja API template with PostgreSQL full-text search and gRPC integration examples.

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https://github.com/e22m4u/ts-openapi

TypeScript decorators for generating The OpenAPI Document

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https://github.com/uneva/unplugin-openapi-gen-ts

OpenAPI Generated TypeScript

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https://github.com/astroway/astroway-python

Official Python SDK for the AstroWay API — sync + async clients, Pydantic models, type-safe, retry-aware, generated from OpenAPI 3.1. Natal charts, synastry, transits, Vedic, Tarot, Human Design, AI horoscopes. Python 3.10+, py.typed.

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https://github.com/those-otter-programs/spring_boot_3_restfull_api

A Spring Boot 3 RESTfull API sample

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

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https://github.com/astroway/astroway-php

Official PHP SDK for the AstroWay API — PSR-18 HTTP client (BYO Guzzle/Symfony/Nyholm), DTOs, mock client, PSR-3 logger, Guzzle promises concurrency. Natal, synastry, transits, Vedic, Tarot, Human Design, AI horoscopes. PHP 8.2+.

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https://github.com/soenneker/soenneker.cloudflare.openapi.suite

A comprehensive suite of utility libraries for Cloudflare's OpenApi operations

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https://github.com/martinm85/openapi-dotnet-tools

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https://github.com/soenneker/soenneker.rebrickable.client

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Impact of taxes and social benefits on disposable income

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https://github.com/noppomario/openapispec-collector

Generate a unified static documentation site from OpenAPI specs across multiple GitHub repositories.

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https://github.com/ejkan/befe-660710698

A repository of Client and Sever-Side Web Programming course, Science, Silpakorn University.

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https://github.com/wilson0x4d/tornado-openapi

..an OAS-generation library for Tornado.

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https://github.com/fibercrypto/libskycoin-cpp

Skycoin client libraries for the C++ language

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https://github.com/kineticcookie/archivarius

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https://github.com/zaiducreatesjarvis/blockchain-event-ticketing-app

Web application for selling tickets using blockchain technology.

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https://github.com/isaquetdiniz/monitoria-backend-es-2024-1

Projeto desafio da monitoria de backend da disciplina de Engenharia de Software (ES) no período letivo de 2024.1 do curso de Sistemas de Informação (SI) da Universidade Federal de Pernambuco (UFPE).

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https://github.com/arctir/flightdeck-api

The Flightdeck API specification

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

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https://github.com/syucream/holaspirit-client-typescript-fetch

A TypeScript client for the Holaspirit API, generated from the official OpenAPI specification using openapi-fetch.

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https://github.com/cashputation/opensnap

Official Repository for the Self-Negotiating APIs Protocol (SNAP)

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https://github.com/soenneker/soenneker.loops.openapi.suite

A comprehensive suite of utility libraries for Loop.so's OpenApi operations

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https://github.com/javrrr/data-360-sdk

TypeScript SDK for the Salesforce Data 360 Connect REST API

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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/foospidy/postman-to-openapi-docker

Run postman-to-openapi from a docker container

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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/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/zoobz-io/rocco

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

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

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https://github.com/carlagesa/openai-chatbot

🤖ChatBot built on OpenAI

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https://github.com/yoshinariyamanaka/openapi-with-express

OpenAPI-with-Express implemented in TypeScript

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https://github.com/csini/user-paradise

mini springboot+angular CRUD app with h2db without any css framework

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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/alexanderlapygin/cra_ts_react-query_rtl_msw_openapi-backend

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https://github.com/dcrichards/go-to-openapi

Convert Go structs to OpenAPI Schemas (Data Models)

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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/l-ogorzalek/bookstore-java

Final Spring project for university course.

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https://github.com/sfuhrm/openapi-examples

Examples for an OpenAPI talk in 2021

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

A deterministic, OpenAPI-driven mock server that generates realistic API responses with zero manual config.

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

Generate Documentation and Code from OpenAPI Spec.

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

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

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

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

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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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https://github.com/emmrys-jay/micro-order

A micro-service based order and delivery application

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https://github.com/kemalkochekov/effectivemobiletestproject

Effective Mobile company's Test Project

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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/m1n64/yii3-stock-api

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

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

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

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https://github.com/client-api/pmg-php

PHP SDK for the Proxmox Mail Gateway (PMG) API.

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https://github.com/lafronzt/standards-api

AI-generated POC for a ReviewOps standards API that stores versioned engineering rules and serves latest applicable standards for automated code review workflows.

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

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

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

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

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

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

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

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

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

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

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

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

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https://github.com/oxhq/oxcribe

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

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

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

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

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

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

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

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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.posthog.httpclients

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

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https://github.com/gabireze/password-generator-api

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

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https://github.com/2sem/coinone-api-skills

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https://github.com/two-weeks-team/previewforgeforclaudecode

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https://github.com/foxfriends/openfetch

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https://github.com/vitorvogomes/fastapi-stand-livros

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https://github.com/evilfreelancer/openchill

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