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/gpbultz/apidocandmock

🔧OpenApi extensions and Mocking objects using Bogus

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

Golang client for the Onfido API

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Last synced: 11 Feb 2026

https://github.com/nachotoast/foundationx-api

Bots, web server, and other backend functionality for the FoundationX server network.

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Last synced: 11 Feb 2026

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/k2tzumi/eg-r2-launch

laravel openapi php presentation

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https://github.com/cicatriiz/cdisc-library-mcp-server

DXT-packaged MCP server for the CDISC Library (discovery, Biomedical Concepts, SDTM Dataset Specializations)

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https://github.com/iyxan23/openapi-example

🛜 an example of API-first development with OpenAPI. with an ExpressJS backend, and Flutter frontend.

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https://github.com/dfberry/azure-rust-mcp-server-apim

A production-ready random song API built with Rust and Azure Container Apps, featuring Model Context Protocol (MCP) integration for AI tools.

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Last synced: 13 Feb 2026

https://github.com/natthasath/demo-laravel-scramble

Laravel Scramble is a package that generates random strings to obfuscate data for testing or security purposes. It offers customizable length and character sets to suit various needs. Ideal for protecting sensitive information or creating dummy data in Laravel applications.

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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

📂 Hometask - FullStack Web Development with Python (FastAPI | REST API | CRUD)

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https://github.com/ignatandrei/openapiswaggerui

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https://github.com/torand/openapi2java

Maven plugin to generate Java models and REST clients from an OpenAPI specification

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https://github.com/cubicrootxyz/workflows

Collection of commonly used GitHub workflows

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https://github.com/jeffhuen/tiger_stripe

A Stripe library for Elixir — typed SDK, client, and webhooks generated from the official OpenAPI spec.

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https://github.com/kopfrechner/scalar-chrome-extension

Beautiful OpenAPI/Swagger viewer for Chrome, powered by Scalar.

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

Generated API Clients for the Drip Backend

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https://github.com/mikeralphson/openapi-diff

Mirror of Atlassian's OpenAPI Diff (from bitbucket.org)

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https://github.com/himenon/docker-typescript-openapi

TypeScript implementations generated from Docker OpenAPI

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

Gopad: SDK for Ruby

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

Tiingo OpenAPI Doc

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

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

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

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https://github.com/neelkamath/backend-prototype

⏩ Template for backend prototypes

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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/controlplane-com/types-ts

Control Plane TypeScript type definitions for type-safe API interactions

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https://github.com/w3labkr/ipynb-openapi

Example using openapi for jupyter.

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https://github.com/spanpanel/span-panel-api

Python API client for SPAN Panel - provides async interface to control circuits, monitor power usage, and manage panel settings

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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/sirerun/mint

mint is an open-source Go CLI that turns any OpenAPI 3.0/3.1 specification into a working Go MCP server.

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https://github.com/aitthi/rust-api-example

a simple example of rust api

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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/davidsteiner/orator

Rust server stub generation from OpenAPI 3.1 specs

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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/dougborg/stocktrim-openapi-client

Production-ready Python client for the StockTrim Inventory Management API with transport-layer resilience

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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/soenneker/soenneker.cloudflare.openapiclient

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

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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/kineticcookie/archivarius

Documentation renderer based on sbt-paradox

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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/aporthq/aport-integrations

🛡️ Community-built integrations, SDKs, and tools for APort - the neutral trust rail for AI agents. Join Hacktoberfest 2025!

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https://github.com/gah-code/ai-prompt-bootcamp

Learning practical coding skills for working professionally with AI

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

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

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https://github.com/snaapi/snaapi

Rapid API development platform without writing code

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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/soenneker/soenneker.ups.openapiclientutil

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

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Last synced: 06 Jun 2026

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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Last synced: 06 Apr 2026

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.elevenlabs.openapiclient

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

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Last synced: 20 May 2026

https://github.com/cashputation/opensnap

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

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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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Last synced: 24 Apr 2026

https://github.com/doodlescheduling/swagger-hub-controller

Kubernetes controller for managing swagger UI

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Last synced: 17 Apr 2026

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

TypeScript SDK for the Salesforce Data 360 Connect REST API

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Last synced: 17 Apr 2026

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

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

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Last synced: 30 May 2026

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

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

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Last synced: 27 Apr 2026

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

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

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Last synced: 06 Jun 2026

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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Last synced: 04 Apr 2026

https://github.com/pchchv/strava-cycling-tool

Project that uses the Strava API to download and analyze cycling training data

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

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

Part of a blog series: Improve Developer Experience (DX) by publishing an API SDK - a CDK Serverless example

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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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Last synced: 19 Apr 2026

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

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

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Last synced: 20 May 2026

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

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

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Last synced: 17 Apr 2026

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

OpenAPI-with-Express implemented in TypeScript

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Last synced: 10 May 2026

https://github.com/mustafaautomation/ai-testgen

AI-powered test case generator — transform PRDs, OpenAPI specs, and user stories into Playwright tests, API tests, and Gherkin features

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Last synced: 04 Apr 2026

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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Last synced: 28 Jun 2026

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

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

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Last synced: 13 May 2026

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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Last synced: 18 Apr 2026

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

Basic API for using microservices' cases

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Last synced: 05 Apr 2026

https://github.com/l-ogorzalek/bookstore-java

Final Spring project for university course.

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Last synced: 05 Apr 2026

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/mrjoops/api-project-template

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https://github.com/maciek1839/spring-cloud-demo

A simple Spring Cloud demo project - Eureka, Feign, Ribbon ...

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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/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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Last synced: 20 Apr 2026

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

A Lightdash API client library for TypeScript, Fetch API

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https://github.com/csini/letsgo-blog

A small microservice written in golang. It has a REST api generated from openapi yaml and reads/writes data from database with ORM based gorm. The project uses maven (mvnGolang)

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Last synced: 20 Apr 2026