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: 2026-07-08 00:22:40 UTC
JSON Representation

https://github.com/jmcleodfoss/simple-rest-tester

A simplistic mocha-based test harness for REST APIs

mocha nodejs npm-module openapi openapi3 rest-api smoke-test testing-tools

Last synced: 13 Apr 2026

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

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

client csharp dotnet generated kiota openapi openapiclient replicate replicateopenapiclient

Last synced: 09 May 2026

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/boywithkeyboard-archive/openapi-vultr

An OpenAPI client for Vultr's API written in TypeScript.

cjs esm javascript node openapi sdk typescript vultr

Last synced: 13 Feb 2026

https://github.com/shopiqo/docker-yaml-include

docker openapi yaml

Last synced: 16 Apr 2026

https://github.com/skygenesisenterprise/giteria-licence-xml

A Giteria site to provide non-judgmental guidance on choosing a license for your open source project

git javascript licence nodemon openapi talwindcss typescript vite website yarn

Last synced: 13 Apr 2026

https://github.com/xuhaojun/linebotsdkx

C# line bot sdk

csharp linebot openapi openapi-generator

Last synced: 14 Jan 2026

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

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

client csharp dotnet openapi openapiclient stripe stripeopenapiclient

Last synced: 02 Jun 2026

https://github.com/tbosak/specbridge

Turn OpenAPI Specs into MCP Tools

api bridge mcp model-context-protocol model-context-protocol-servers openapi tools

Last synced: 14 Apr 2026

https://github.com/kadykov/mcp-openapi-schema-explorer

MCP server providing token-efficient access to OpenAPI/Swagger specs via MCP Resources for client-side exploration.

api-specification developer-tools development mcp mcp-server model-context-protocol node node-js nodejs openapi swagger typescript

Last synced: 24 Apr 2025

https://github.com/takeruun/fastify-todo-app

fastify and react todo application

fastify next openapi turbo

Last synced: 13 Apr 2026

https://github.com/mathrix-education/openapi-processor

Template Engine for YAML-based OpenAPI specifications.

openapi php

Last synced: 15 Feb 2026

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

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

api client csharp dotnet kiota openai openaiopenapiclient openapi openapiclient

Last synced: 09 May 2026

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

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

cli documentation openapi redoc static-site swagger

Last synced: 12 Apr 2026

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

TypeScript implementations generated from Docker OpenAPI

docker nodejs openapi swagger typescript

Last synced: 16 Apr 2026

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

Gopad: SDK for Ruby

etherpad gopad openapi ruby sdk

Last synced: 16 Feb 2026

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

api-rest clean-architecture docker docker-compose go go-orm mocking mysql openapi prisma prometheus semaphore-ci sonarqube

Last synced: 16 Apr 2026

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

⏩ Template for backend prototypes

backend docker gradle kotlin ktor mlab mongodb ngrok openapi template

Last synced: 16 Apr 2026

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

drizzle drizzle-orm hono nodejs openapi zod

Last synced: 23 Mar 2026

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).

biomejs drizzle-orm express husky nestjs openapi sqlite3 swc

Last synced: 07 Jan 2026

https://github.com/maineffort/swaggerized-spring-petclinic

This is "swaggerized" version of the spring petclinic i.e. with OpenApi support

microservices-architecture openapi swagger

Last synced: 16 Apr 2026

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

api clean-architecture docker dynamodb github-actions openapi typescript unit-test

Last synced: 16 Apr 2026

https://github.com/iamkankan/generative-ai-tutorials

Generative AI Full Course

gemini-pro langchain llama more openapi pinecone vector-database

Last synced: 21 Jan 2026

https://github.com/m-mdy-m/openapi-playground

Explore OpenAPI & Swagger with Node.js! Learn code-first & design-first workflows, routes, documentation, reusability, data types, & more. Experiment with security, hosting, and code generation.

openapi openapi-repo swagger swagger-ui

Last synced: 02 Apr 2025

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

The Flightdeck API specification

backstage flightdeck idp openapi

Last synced: 02 Apr 2025

https://github.com/ankitboghra/openapi-watchgod-merger

Merge OpenAPI and Watchgod responses to track latest status of a deposit/withdraw transaction on Ethereum Chain and Polygon Chain.

ethereum openapi polygon watchgod web3

Last synced: 09 May 2026

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

An async thread-safe singleton for HighLevel OpenApiClient.

clientutil csharp dotnet go gohighlevel high highlevel highlevelclientutil http httpclient level openapi openapiclientutil

Last synced: 10 Jun 2026

https://github.com/gecsea/gecsevar-openapi

Open-API code generator for kotlin projects

codegenerator kotlin openapi plugin

Last synced: 14 Jan 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.

ai-tools auto-generated claude codex cursor data-api hikerapi instagram instagram-api mcp mcp-server model-context-protocol openapi social-media

Last synced: 26 Jun 2026

https://github.com/davidsteiner/orator

Rust server stub generation from OpenAPI 3.1 specs

axum codegen openapi openapi3 rust

Last synced: 07 Apr 2026

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

A Loops (loops.so) .NET client generated from their OpenAPI schema, updated daily

api client csharp dotnet kiota loops loopsopenapiclient open openapi openapiclient so

Last synced: 01 Apr 2026

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

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

client cloudflare cloudflareopenapiclient csharp dotnet generated openapi openapiclient spec util

Last synced: 13 May 2026

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

A Active Prospect OpenApi .NET client generated from the OpenAPI schema, updated daily

activeprospect certificates csharp dotnet kiota openapi openapiclient trustedform trustedformcertificatesopenapiclient

Last synced: 07 May 2026

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

Automatically updates the Soenneker.Telnyx.OpenApiClient package

csharp dotnet openapi openapiclient runner runners telnyx telnyxopenapiclient

Last synced: 12 Apr 2026

https://github.com/temirkhann/openapi-validator-bundle

An OpenAPI specification validator for a symfony application

openapi symfony-bundle

Last synced: 06 May 2026

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

A flexible and well-structured API for generating secure passwords, built with NestJS. It allows customization of character types, quantity, and output format (JSON, XML, YAML, CSV, text, or HTML).

api csv customizable generator html json just nestjs nestjs-backend openapi password password-generator secure supertest swagger xml yaml

Last synced: 12 Apr 2026

https://github.com/samuele-barbiera/kubb-gen-scribe-cli

a cli made to scaffold a basic structure for the kubb SDKs, managing the BE api calls fully typesafe with a swagger yaml file

cli kubb openapi typescript

Last synced: 17 Apr 2026

https://github.com/alexdemure/gadfastopenapi

Customize and override OpenAPI schema details in FastAPI with ease

fastapi fastapi-extension openapi openapi-codegen

Last synced: 25 Feb 2026

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

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

angular css3 fullstack-development html5 jpa openapi spring-boot typescript

Last synced: 12 Apr 2026

https://github.com/alexanderlapygin/cra_ts_react-query_rtl_msw_openapi-backend

CRA-in-TS starter with React Query and opanapi-backend and testing with RTL, MSW

backend cra frontend msw openapi react rest rtl softspiders ss starter template test ts

Last synced: 19 Apr 2026

https://github.com/skygenesisenterprise/company-website

Welcome to the official repository for the Sky Genesis Enterprise website.

applications company enterprise governance javascript licence nextjs office openapi talwindcss typescript website

Last synced: 02 Apr 2026

https://github.com/claudioaltamura/spring-boot-superheroes-example

Spring Boot Superheroes example

github-actions gradle java lombok openapi rest rest-assured spring-boot

Last synced: 12 Apr 2026

https://github.com/snaapi/snaapi

Rapid API development platform without writing code

ai-tools api deno no-code openapi typescript

Last synced: 02 Apr 2026

https://github.com/trivigy/oas

Golang OpenAPI Specification definitions

api openapi spec swagger

Last synced: 17 Apr 2026

https://github.com/nikita-volkov/modeliero

Swiss army knife for model code-generation (in beta)

asyncapi code-generation haskell json-schema openapi

Last synced: 09 May 2026

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

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

client csharp dotnet generated gitlab gitlabopenapiclient kiota openapi openapiclient

Last synced: 07 May 2026

https://github.com/cashputation/opensnap

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

agents api-protocol m2m openapi opensnap

Last synced: 30 Apr 2026

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

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

csharp dotnet kiota loops loopsopenapisuite openapi so suite util

Last synced: 10 Jun 2026

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

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

client csharp dotnet generated gitlab gitlabopenapiclientutil kiota openapi openapiclientutil singleton util

Last synced: 06 Jun 2026

https://github.com/fly-playgroud/go-postman

an go postman lib

api api-security api-test openapi openapiv3 postman postman-api postman-collection

Last synced: 18 Jan 2026

https://github.com/flkt-crnpio/fastapi-sandbox

Pruebas para crear la documentacion de una API bajo los protocolos de OpenAPI utilizando el framework de FastAPI

fastapi openapi python python3

Last synced: 10 May 2026

https://github.com/ideadapt/intellij-swagger-annotations

Intellij plugin providing editor features related to swagger and openapi annotations

intellij intellij-plugin openapi openapi3 swagger swagger2

Last synced: 10 May 2026

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

openapi rust rweb

Last synced: 17 Apr 2026

https://github.com/hskrasek/arazzo-parser

Parse OpenAPI Arazzo specifications in PHP

arazzo arazzo-specification openapi

Last synced: 11 May 2026

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

基于 antd 的 midwayjs V2 静态项目函数计算发布案例

aliyun antd auto-issues fc github-actions midwayjs-v2 openapi react serverless static-server umi

Last synced: 19 Apr 2026

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

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

api client csharp dotnet kiota openapi openapiclient persona personaopenapiclient

Last synced: 20 May 2026

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

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

aspnet-web-api file-upload multipart-formdata openapi

Last synced: 17 Apr 2026

https://github.com/andriykalashnykov/todo-nodejs-mongo-terraform

React web app with a Node.js API and a MongoDB database on Azure. The blueprint includes sample application code (a ToDo web app) which can be removed and replaced with your own application code. Add your own source code and leverage the Infrastructure as Code assets (written in Terraform) to get up and running quickly.

azd azure azure-functions azure-keyvault azureservices mongodb nodejs openapi react terraform

Last synced: 12 Apr 2026

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

Generate Documentation and Code from OpenAPI Spec.

api-docs api-specification automation ci-cd client-sdk client-sdk-generator github-actions openapi openapi-codegen openapi-documentation openapi-generator openapi3 redoc rest-api swagger template

Last synced: 12 Apr 2026

https://github.com/localgod/minado

Generating OpenApi specifications and API management policies from Azure Logic App Standard

azure-api-management azure-logic-apps console-application github-actions openapi

Last synced: 18 Jan 2026

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.

api api-documentation bundle extension game-development javascript json jwt mongoid naughty nsattributedstring odoo openapi redoc ruby swift unchecked-checkboxes unity

Last synced: 12 Apr 2026

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

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

calendar calendly calendlyopenapiclient client csharp dotnet kiota openapi openapiclient sdk

Last synced: 02 May 2026

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

Final Spring project for university course.

feign h2-database java lombok mapstruct maven openapi spring swagger

Last synced: 05 Apr 2026

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

API documentation for OpenShift demos

nodejs openapi swagger

Last synced: 18 Apr 2026

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

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

api-mocking api-testing deterministic developer-tools golang mock-server openapi openapi3 schema-driven test-doubles zero-config

Last synced: 19 Apr 2026

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

A micro-service based order and delivery application

air-verse docker docker-compose event-driven go-chi golang hexagonal-architecture makefile microservice mongodb openapi rabbitmq redis redis-cache swagger viper yaml yq zap

Last synced: 12 Apr 2026

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.

ai-generated api code-review docker engineering-standards fastify kubernetes nodejs openapi poc postgresql prisma reviewops standards-api typescript

Last synced: 29 May 2026

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

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

api cad documentation engineering integration openapi schemas sdk webhooks

Last synced: 20 Apr 2026

https://github.com/nikitakumawat/weather-app.github.io

Weather app using ReactJS and GraphQL

css3 graphql openapi reactjs weather-api

Last synced: 12 Apr 2026

https://github.com/rspereiratech/openapi-collection-generator-parent

Maven plugin that generates Postman and Insomnia collections from OpenAPI 3.x specs, integrated into the Maven build lifecycle.

api-tools code-generation insomnia java maven-plugin openapi openapi3 postman

Last synced: 29 May 2026

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

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

csharp dotnet fly flymachinesopenapihttpclient httpclient httpclients machines openapi singleton

Last synced: 21 Apr 2026

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

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

api client csharp dotnet kiota openapi openapiclientutil singleton unified unifiedopenapiclientutil util

Last synced: 04 Jul 2026

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

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

api-client laws legal-tech legalize openapi python-sdk sdk

Last synced: 24 Apr 2026

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

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

client csharp dotnet kiota openapi openapiclientutil singleton together togetheropenapiclientutil util

Last synced: 07 Jun 2026

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

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

api client csharp dotnet kiota openapi openapiclient openapiclientutil opensubtitles opensubtitlesopenapiclientutil singleton subtitles util

Last synced: 24 Apr 2026

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

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

api csharp dotnet grafana grafanaopenapihttpclient httpclient httpclients openapi singleton

Last synced: 13 May 2026

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

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

csharp dotnet httpclient httpclients openapi singleton vercel vercelopenapihttpclient

Last synced: 03 May 2026

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

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

api csharp dotnet httpclient httpclients openapi openapiclient singleton ups upsopenapihttpclient

Last synced: 04 Jul 2026

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

An async thread-safe singleton for the Cloudflare OpenApiClient

api client cloudflare cloudflareclientutil csharp dotnet http httpclient openapi singleton util utils

Last synced: 10 Jun 2026

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

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

api client csharp dotnet kiota openapi openapiclient plaid plaidopenapiclient

Last synced: 28 Apr 2026

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

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

api csharp dotnet httpclient httpclients openapi openapiclient paypal paypalopenapihttpclient singleton

Last synced: 10 Jun 2026

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

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

client csharp dotnet kiota openapi openapiclient trulioo truliooopenapiclient

Last synced: 06 May 2026

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

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

api csharp dotnet httpclient httpclients openapi singleton wiki wikimedia wikimediaopenapihttpclient wikipedia

Last synced: 09 Jun 2026

https://github.com/oxhq/oxcribe

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

api-documentation laravel openapi php static-analysis

Last synced: 23 Apr 2026

https://github.com/neelagarwal98/modular-equity-research-system

A prototype application that automates financial equity research using a coordinated multi-module architecture. It combines the power of OpenAI's GPT-3.5-turbo, Serper API for Google search and RAG (Retrieval-Augmented Generation) to deliver accurate, well-sourced financial analysis reports with confidence scoring.

equity google-serp-api langchain llm openapi rag streamlit

Last synced: 06 Apr 2026

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

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

api client csharp dotnet intercom intercomopenapiclientutil kiota openapi openapiclient openapiclientutil singleton util

Last synced: 16 May 2026

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

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

api client csharp dotnet firecrawl firecrawlopenapiclientutil kiota openapi openapiclientutil singleton util

Last synced: 11 Jun 2026

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

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

csharp dotnet httpclient httpclients openapi singleton windmill windmillopenapihttpclient

Last synced: 02 May 2026

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

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

api client csharp dotnet kiota mailgun mailgunopenapiclientutil openapi openapiclient openapiclientutil singleton util

Last synced: 06 Jun 2026

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.

css3 html5 openapi weather-api weather-app weather-forecast

Last synced: 24 Apr 2026

https://github.com/sookwalinga/ask_sam

Web app consuming the openAI GPT3 api. Feel free to "ask sam anything" 😉

gpt3 javascript openapi

Last synced: 11 May 2026

https://github.com/rspereiratech/openapi-collection-generator-samples

Sample Maven project demonstrating the openapi-collection-generator-maven-plugin — generates Postman and Insomnia collections from an OpenAPI 3.0 Pet Store specification.

api api-tools code-generation insomnia java java17 maven maven-plugin openapi openapi3 postman postman-collection rest-api sample swagger

Last synced: 29 May 2026

https://github.com/rspereiratech/openapi-collection-generator-postman

Postman collection generator plugin for OpenAPI specifications — converts OpenAPI specs into ready-to-import Postman collections (v2.1.0).

api api-tools code-generator developer-tools java openapi openapi-specification openapi3 postman postman-collection rest-api

Last synced: 29 May 2026

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

3-DD Methodology: PreviewDD → SpecDD → TestDD. 143 Opus 4.7 agents turn one-line idea → frozen full-stack app. Claude Code plugin. Built with Opus 4.7 hackathon.

3-dd anthropic claude-code claude-code-plugin hackathon multi-agent nestia nextjs openapi opus-4-7 preview-driven-development spec-driven-development test-driven-development typescript