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/soenneker/soenneker.dnsimple.contacts

An async thread-safe singleton for DNSimple OpenApiClient's Contacts API

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https://github.com/patarapolw/ts-openapi-fastify

Fastify with OpenAPI and typescript-json-schema example

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https://github.com/fvillanuevape/spring-boot-openapi-oke

Article API Spring Boot and Kubernetes - Spring Boot Open API OKE, es una demo sobre como usar los servicios de kubernetes de oracle cloud para desplegar una API desarrollado en spring boot y de igual manera la documentación de la API usando OAS 3.0.0.

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https://github.com/dacr/counters

Just count things with API

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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/miensoap/kishelper

Features for utilizing the KIS Open API

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https://github.com/dreamquality/swagger-coverage-cli

A Node.js CLI tool to measure test coverage of Swagger/OpenAPI specs using Postman collections.

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https://github.com/warfox/products-spring-kotlin-cljs

Fullstack App with Spring Kotlin backend and Clojurescirpt frontend

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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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https://github.com/dhia-gharsallaoui/go-onfido

Golang client for the Onfido API

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https://github.com/maemreyo/oas2ts

A Node.js tool that converts OpenAPI YAML schemas into TypeScript types and interfaces, with support for recursive `$ref` resolution and customizable file structure.

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https://github.com/somospragma/qa-backend-postman-collection-builder-from-api-contract

Proyecto que genera una colección de prueba para Postman con sus variables de entorno apartir un contrato json de la API (Swagger)

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https://github.com/surender1987/webapidocumentationwithswagger

ASP.Net core web api with swagger

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https://github.com/temirlan-zh/test-task-users-and-tasks

Implementation of a test task for a job application.

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https://github.com/tgrifoni/task-management-api

This is a .NET 9 API project for a task management system. Read the README for more information.

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https://github.com/arkanatelecom/arkana-wiki

Oficial Arkana Documentation Wiki ressource

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https://github.com/yevheniidatsenko/goit-pythonweb-hw-08

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https://github.com/mikestead/openapi-operations

Convert an OpenAPI spec into an array of operations

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https://github.com/gopad/gopad-ruby

Gopad: SDK for Ruby

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https://github.com/juliocesarscheidt/go-orm-api-clean-arch

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https://github.com/CrossEvol/hono-starter

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https://github.com/juliocesarscheidt/students-courses-project

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https://github.com/andyfrith/weather-api

Weather API is a high-performance, type-safe RESTful service designed for the modern web. Built using the Bun JavaScript runtime and the Hono framework

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https://github.com/goafabric/callee-service-quarkus

⚛️Very tiny QUARKUS Service without Persistence - Also includes a native image build

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

An async thread-safe singleton for HighLevel OpenApiClient.

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https://github.com/wronai/allama

testing and benchmarking suite for Large Language Models (LLMs) focused on Python code generation. The project enables automatic quality assessment of generated code through various metrics and generates detailed HTML reports.

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

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

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https://github.com/soenneker/soenneker.openapi.fixer

A utility that fixes problem OpenApi specs being converted into clients

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

A .NET thread-safe singleton HttpClient for Rebrickable

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https://github.com/robinmordasiewicz/f5xc-api-fixed

Validated F5 Distributed Cloud OpenAPI specifications

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https://github.com/aihxp/sumac

Sumac: bring out what your tools can do — one Rust binary to bridge skills, MCP, and APIs. Run any skill as an MCP server, any MCP server as a CLI, and any API from your terminal.

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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/inyourtime/fastify-multiple-swagger

A Fastify plugin for generating multiple Swagger/OpenAPI documents using @fastify/swagger.

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

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

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

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

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

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https://github.com/zemloai-ctrl/zemloai-api

Zemlo ZQP v1.0 Lite – The First AI-Agent Optimized Logistics Infrastructure. Provides deterministic market signals, situational awareness, and automated risk analysis via a no-auth API. Built to be the "Logistics PageRank" for autonomous agents and humans alike.

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https://github.com/squ1ky/tmap-backend

Т-Банк Проектный практикум ИВМИИТ Команда 1

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

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

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

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

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

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

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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/saibotsivad/glopen

GLobbify OPENapi: Glob a folder structure into an OpenAPI definition and API driver.

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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/latentprion/cppbessot

CPPBESSOT (C++ BackEnd Single Source of Truth): a framework that uses OpenAPI to maintain a single source of truth for the data model of a software project. It generates C++ headers, JSON serdes, ODB-based ORM headers, DB migrations, Typescript types and Zod schemas. I.e: a type-safe backend-to-frontend data model manager.

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

基于 antd 的 midwayjs V2 静态项目函数计算发布案例

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

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

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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/dpritchett/helloextend-ruby-client

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

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

Examples for an OpenAPI talk in 2021

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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/lc-semba-ryuichiro/sample-gradle-oas-generator-server

OpenAPI Generator (Gradle Plugin) を使ったサーバーサイドの自動生成を検証するリポジトリ

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https://github.com/jrjsmrtn/pve-openapi

OpenAPI 3.1 specs for the Proxmox VE API (PVE 7.0-9.1) — extracted from official pve-docs packages

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https://github.com/soenneker/soenneker.fly.machines.httpclients

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

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

A thread-safe utility for obtaining Unified'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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Last synced: 11 Jun 2026

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

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

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Last synced: 06 Jun 2026

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.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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Last synced: 23 Apr 2026

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

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

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Last synced: 03 May 2026

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

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

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Last synced: 28 Apr 2026

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.highlevel.openapiclient

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

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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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Last synced: 23 Apr 2026

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

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

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Last synced: 06 Jun 2026

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

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

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

A thread-safe utility for obtaining Make'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/ghchinoy/openapi-from-grpc

gRPC service with autogenerated OpenAPI spec via gRPC Gateway for REST/HTTP

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

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

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https://github.com/voznov/zod-dto

Zod to DTO classes for TypeScript & NestJS & OpenAPI

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

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

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https://github.com/huksley/swagger-explorer

Run Swagger UI locally against a folder of OpenAPI or Swagger specifications

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

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

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https://github.com/asafr-dev/supportdesk-api

SupportDesk tickets API (FastAPI): API-key auth, SQLAlchemy/Postgres, OpenAPI docs, tests, CI.

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https://github.com/bonukai/typescript-routes-to-openapi

Extract REST API routes from TypeScript files and generate OpenAPI documentation and input validators

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https://github.com/foxfriends/openfetch

Fetch-like OpenAPI client library

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https://github.com/echelon-solutions/swagger-codegen-router-template

A template for swagger-codegen that generates a Node.js project that validates and routes requests to a url.

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https://github.com/jimsten/ticketflow

High-concurrency booking/ticketing system (MVP first)

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https://github.com/nakasar/serverless-api-doc-generator

Generate Documentation API from serverless.yml and JS docstrings.

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Last synced: 28 Apr 2026

https://github.com/evilfreelancer/openchill

Prototype of Swagger / OpenAPI PHP client generator

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

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

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Last synced: 06 Jun 2026

https://github.com/alexandramartinez/todo-app-mule-curietechai

Everything discussed in the 'From Zero to API with MuleSoft, CurieTech AI & Anypoint Code Builder' playlist.

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https://github.com/kanryu/validagen

A validator generator for structs/maps for your go applications.

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Last synced: 29 Apr 2026

https://github.com/av/tools

Docker image for installing and running tools for LLM agents (MCP, OpenAPI, UVX, NPX, Python)

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Last synced: 29 Apr 2026

https://github.com/mreiche/marketstack-openapi

Generated OpenAPI for Marketstack

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https://github.com/woile/drf-serializers

exploring DRF Serializers with OpenAPI

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https://github.com/ivan-yuldashev/hono-quickstart

An opinionated, production-focused starter for Hono. This template provides an end-to-end type-safe stack, featuring a Modular Architecture, Context-Aware Transactions, Drizzle ORM, PostgreSQL, Zod, and automated OpenAPI documentation.

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Last synced: 30 Apr 2026