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An open API service indexing awesome lists of open source software.

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.

https://github.com/microcks/microcks

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation sandbox project 🚀

api api-testing asyncapi asyncapi-specification cncf cncf-project event-driven graphql kubernetes mock mock-server mocking openapi openapi-tooling openapi3 openapi31 postman-collection swagger swagger2 testing

Last synced: 14 May 2025

https://github.com/dedoc/scramble

Modern Laravel OpenAPI (Swagger) documentation generator. No PHPDoc annotations required.

api generator laravel openapi swagger

Last synced: 29 Dec 2025

https://github.com/apple/swift-openapi-generator

Generate Swift client and server code from an OpenAPI document.

ios-swift openapi plugin server-side-swift swift swiftpm

Last synced: 16 Jan 2026

https://github.com/dreamfactorysoftware/dreamfactory

DreamFactory API Generation Platform - API Wrapper for SQL Server, Snowflake, MySQL, and more!

api api-generation api-generator automatic-api dreamfactory framework laravel openapi php rest

Last synced: 22 Jan 2026

https://github.com/awtkns/fastapi-crudrouter

A dynamic FastAPI router that automatically creates CRUD routes for your models

api async asyncio code-generation crud crud-routes fastapi fastapi-crudrouter framework openapi openapi-route python python3 redoc rest sql swagger-ui web

Last synced: 14 May 2025

https://github.com/mermade/widdershins

OpenAPI / Swagger, AsyncAPI & Semoasa definitions to (re)Slate compatible markdown

api asyncapi documentation openapi openapi3 semoasa slate swagger

Last synced: 14 May 2025

https://github.com/Mermade/widdershins

OpenAPI / Swagger, AsyncAPI & Semoasa definitions to (re)Slate compatible markdown

api asyncapi documentation openapi openapi3 semoasa slate swagger

Last synced: 14 Mar 2025

https://github.com/microsoft/openapi.net

The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model.

http openapi

Last synced: 06 Jan 2026

https://github.com/microsoft/OpenAPI.NET

The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model.

http openapi

Last synced: 23 Mar 2025

https://github.com/steedos/steedos-platform

华炎魔方企业级低代码平台，Salesforce 开源替代方案 ｜ Steedos is an open-source alternative to Salesforce Enterprise Low-Code Platform. 🤖 🎨 🚀

airtable amis appsmith bpm budibase chatgpt clickpaas erp low-code lowcode mendix moleculer no-code odoo openapi outsystems paas saas salesforce sap

Last synced: 04 Feb 2026

https://github.com/mermade/openapi-gui

GUI / visual editor for creating and editing OpenAPI / Swagger definitions

editor gui openapi openapi3 swagger

Last synced: 15 May 2025

https://github.com/OpenAPITools/openapi-generator-cli

A node package wrapper for https://github.com/OpenAPITools/openapi-generator

npm openapi openapi-generator openapi2 openapi3

Last synced: 29 Mar 2025

https://github.com/Mermade/openapi-gui

GUI / visual editor for creating and editing OpenAPI / Swagger definitions

editor gui openapi openapi3 swagger

Last synced: 06 Apr 2025

https://github.com/opticdev/optic

OpenAPI linting, diffing and testing. Optic helps prevent breaking changes, publish accurate documentation and improve the design of your APIs.

api-documentation api-linter apis documentation openapi openapi3 swagger

Last synced: 25 Dec 2025

https://github.com/steedos/steedos-platform/?from=github

华炎魔方企业级低代码平台，Salesforce 开源替代方案 ｜ Steedos is an open-source alternative to Salesforce Enterprise Low-Code Platform. 🤖 🎨 🚀

airtable amis appsmith bpm budibase chatgpt clickpaas erp low-code lowcode mendix moleculer no-code odoo openapi outsystems paas saas salesforce sap

Last synced: 02 Apr 2025

https://github.com/go-fuego/fuego

Golang Fuego - Web framework generating OpenAPI 3 spec from source code - Pluggable to existing Gin & Echo APIs

echo fuego gin-gonic golang http-server openapi

Last synced: 14 May 2025

https://github.com/sourcey/sourcey

Beautiful static documentation generator for OpenAPI/Swagger 2.0

api-documentation developer-tools docs documentation doxygen openapi openapi3 static-site-generator typescript

Last synced: 05 Apr 2026

https://github.com/Endava/cats

CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance.

api fuzzer java openapi rest-api rest-fuzzer swagger testing

Last synced: 10 May 2025

https://github.com/div99/agent-protocol

Common interface for interacting with AI agents. The protocol is tech stack agnostic - you can use it with any framework for building agents.

agents ai ai-agent api auto-gpt gpt-4 javascript llms openapi protocol python typescript

Last synced: 14 May 2025

https://github.com/unionj-cloud/go-doudou

go-doudou（doudou pronounce /dəudəu/）is OpenAPI 3.0 (for REST) spec and Protobuf v3 (for grpc) based lightweight microservice framework. It supports monolith service application as well.

apollo cloud-native etcd framework go golang grpc grpc-go microservice nacos openapi orm rate-limiting rest restful-api service-mesh swagger3

Last synced: 14 May 2025

https://github.com/marshmallow-code/apispec

A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification)..

api documentation flask http-api json-schema marshmallow openapi openapi-specification openapi2 openapi3 pluggable python rest-api swagger

Last synced: 16 May 2025

https://github.com/endava/cats

CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance.

api fuzzer java openapi rest-api rest-fuzzer swagger testing

Last synced: 14 May 2025

https://github.com/zalando/intellij-swagger

A plugin to help you easily edit Swagger and OpenAPI specification files inside IntelliJ IDEA

intellij java openapi swagger swagger-plugin utilities

Last synced: 13 Apr 2025

https://github.com/blst-security/cherrybomb

Stop half-done APIs! Cherrybomb is a CLI tool that helps you avoid undefined user behaviour by auditing your API specifications, validating them and running API security tests.

api api-security best-practices blst business-logic cli cyber cybersecurity firecracker http open-source openapi openapi3 security security-tools web-sec-scanner web-security websecurity

Last synced: 10 Apr 2025

https://github.com/koxudaxi/fastapi-code-generator

This code generator creates FastAPI app from an openapi file.

fastapi generator openapi pydantic python

Last synced: 13 May 2025

https://github.com/asteasolutions/zod-to-openapi

A library that generates OpenAPI (Swagger) docs from Zod schemas

openapi openapi3 schema swagger zod

Last synced: 15 Feb 2026

https://github.com/redocly/redocly-cli

⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.

api-governance cicd linter openapi openapi-cli openapi3 openapi31 redoc redocly swagger2

Last synced: 02 Apr 2026

https://github.com/metosin/compojure-api

Sweet web apis with Compojure & Swagger

api async clojure clojure-spec http metosin-stable openapi rest ring schema swagger

Last synced: 13 May 2025

https://github.com/graphql-hive/sofa

The best way to create REST APIs - Generate RESTful APIs from your GraphQL Server

api graphql openapi rest swagger

Last synced: 04 Oct 2025

https://github.com/apiflask/apiflask

A lightweight Python web API framework.

api flask marshmallow openapi openapi3 python redoc rest swagger swagger-ui

Last synced: 13 May 2025

https://github.com/graphql-hive/SOFA

The best way to create REST APIs - Generate RESTful APIs from your GraphQL Server

api graphql openapi rest swagger

Last synced: 20 Mar 2025

https://github.com/urigo/sofa

The best way to create REST APIs - Generate RESTful APIs from your GraphQL Server

api graphql openapi rest swagger

Last synced: 12 Mar 2025

https://github.com/Urigo/SOFA

The best way to create REST APIs - Generate RESTful APIs from your GraphQL Server

api graphql openapi rest swagger

Last synced: 14 Mar 2025

https://github.com/daveshanley/vacuum

vacuum is the worlds fastest and most versatile OpenAPI & JSON Schema linter, docs generator and toolkit. It tears through API specs at light speed. 100% compatible with Spectral rulesets, and OpenAPI 3.0, 3.1 and 3.2

go golang json-schema json-schema-validator lint linter linters linting oas openapi openapi-spec openapi-specification openapi3 openapi3-1 openapi3-validation openapi31 owasp spectral stoplight swagger-spec

Last synced: 03 Jun 2026

https://github.com/paloaltonetworks/docusaurus-openapi-docs

🦝 OpenAPI plugin for generating API reference docs in Docusaurus v3.

docusaurus docusaurus-plugin docusaurus-theme docusaurus2 openapi react

Last synced: 08 Apr 2026

https://github.com/rustmailer/bichon

Bichon – A lightweight, high-performance Rust email archiver with WebUI

backup compression email email-archiver email-archiving imap mail oauth2 openapi rust search self-hosted selfhosted tantivy webui

Last synced: 23 May 2026

https://github.com/APIDevTools/json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers

javascript json-pointer json-reference json-schema nodejs openapi parser resolver universal-javascript

Last synced: 10 May 2025

https://github.com/apidevtools/json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers

javascript json-pointer json-reference json-schema nodejs openapi parser resolver universal-javascript

Last synced: 16 Jan 2026

https://github.com/asklokesh/loki-mode

Multi-agent autonomous SDLC framework. Spec to deployed app. PRD, GitHub issue, OpenAPI/JSON/YAML, or one-line brief. 5 AI providers, 11 quality gates.

ai-agents aider anthropic autonomous ci-cd claude cline code-review devops gemini github-action github-issues loki-mode multi-agent openai-codex openapi pull-request-review sdlc spec-driven-development

Last synced: 26 Jun 2026

https://github.com/postmanlabs/openapi-to-postman

Plugin for converting OpenAPI 3.0 specs to the Postman Collection (v2) format

openapi openapi3 postman-collection

Last synced: 13 May 2025

https://github.com/cdimascio/express-openapi-validator

🦋 Auto-validates api requests, responses, and securities using ExpressJS and an OpenAPI 3.1.x or 3.0.x specification

connect-middleware express express-middleware expressjs hacktoberfest middleware nodejs openapi openapi-validator openapi3 request-validation rest-api

Last synced: 12 May 2025

https://github.com/badgerati/pode

Pode is a Cross-Platform PowerShell web framework for creating REST APIs, Web Sites, and TCP/SMTP servers

active-directory authentication cross-platform docker framework hacktoberfest https openapi powershell powershell-core raspberry-pi rest server serverless session swagger unix web webserver windows

Last synced: 08 Oct 2025

https://github.com/astahmer/openapi-zod-client

Generate a zodios (typescript http client with zod validation) from an OpenAPI spec (json/yaml)

api axios cli client generator openapi swagger typescript zod zodios

Last synced: 13 May 2025

https://github.com/Redocly/redocly-cli

⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.

api-governance cicd linter openapi openapi-cli openapi3 openapi31 redoc redocly swagger2

Last synced: 02 Apr 2025

https://github.com/paperclip-rs/paperclip

WIP OpenAPI tooling for Rust.

hacktoberfest openapi rust

Last synced: 13 May 2025

https://github.com/kogosoftwarellc/open-api

A Monorepo of various packages to power OpenAPI in node

express express-openapi openapi rest-api

Last synced: 12 May 2025

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

Utility for comparing two OpenAPI specifications.

api diff openapi openapi-diff openapi-specification openapi3 swagger

Last synced: 14 May 2025

https://github.com/PaloAltoNetworks/docusaurus-openapi-docs

🦝 OpenAPI plugin for generating API reference docs in Docusaurus v3.

docusaurus docusaurus-plugin docusaurus-theme docusaurus2 openapi react

Last synced: 05 May 2025

https://github.com/Badgerati/Pode

Pode is a Cross-Platform PowerShell web framework for creating REST APIs, Web Sites, and TCP/SMTP servers

active-directory authentication cross-platform docker framework hacktoberfest https openapi powershell powershell-core raspberry-pi rest server serverless session swagger unix web webserver windows

Last synced: 04 Apr 2025

https://github.com/stoplightio/studio

The modern editor for API Design and Technical Writing.

apidesign apidesigner mocking openapi openapi3 stoplight stoplightio swagger

Last synced: 16 May 2025

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

Utility for comparing two OpenAPI specifications.

api diff openapi openapi-diff openapi-specification openapi3 swagger

Last synced: 31 Mar 2025

https://github.com/robintail/express-zod-api

A Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.

api documentation documentation-tool endpoint express hacktoberfest http json middleware nodejs openapi openapi-specification schema schema-validation server swagger swagger-documentation typescript validation zod

Last synced: 03 Feb 2026

https://github.com/mrin9/angular-springboot-rest-jwt

Springboot, Angular and JWT security - Example Project based on Northwind Order Processing

angular angular2 frontend java jwt northwind openapi spring-security springboot swagger

Last synced: 08 Apr 2025

https://github.com/helixml/helix

♾️ Private Agent Fleet with Spec Coding. Each agent gets their own GPU-accelerated desktop. Run Claude, Codex, Gemini and open models on a full private AI Stack ♾️

agents api genai glm golang helm k8s kimi llm llm-agent llm-serving openai openapi qwen rag self-hosted swagger swarm

Last synced: 17 Jun 2026

https://github.com/pb33f/libopenapi

libopenapi is a fully featured, high performance OpenAPI 3.2, 3.1, 3.0 and Swagger parser, library, validator and toolkit for golang applications.

diff go golang library oas oasv3 openapi openapi-spec openapi-specification openapi3 openapi3-1 openapi3-validation openapi31 parser swagger swagger-api swagger2

Last synced: 02 Apr 2026

https://github.com/aliyun-ued/aliyun-sdk-js

阿里云 SDK for Javascript，支持在浏览器和 Nodejs 环境使用，支持大部分阿里云服务。

aliyun cdn ecs javascript mts nodejs openapi oss ots rds sdk slb sls

Last synced: 15 May 2025

https://github.com/apisyouwonthate/openapi.tools

A collection of Editors, Linters, Parsers, Code Generators, Documentation, Testing

openapi openapi-specification openapi3 openapi31 swagger swagger2

Last synced: 14 May 2025

https://github.com/mvanhorn/cli-printing-press

Every API has a secret identity. This finds it, absorbs every feature from every competing tool, then builds the GOAT CLI — designed for AI agents first, with SQLite sync, offline search, and compound insight commands.

ai-agents cli cli-generator developer-tools golang openapi

Last synced: 12 May 2026

https://github.com/akfamily/aktools

AKTools is an elegant and simple HTTP API library for AKShare, built for AKSharers!

akshare asyncio data data-science fastapi openapi pydanti

Last synced: 14 May 2025

https://github.com/mermade/oas-kit

Convert Swagger 2.0 definitions to OpenAPI 3.0 and resolve/validate/lint

api conversion converter documentation linter linting openapi openapi-specification openapi3 openapi3-1 swagger validator

Last synced: 14 Dec 2025

https://github.com/benlorantfy/nestjs-zod

All NestJS + Zod utilities you need

javascript nest nestjs node nodejs openapi typescript zod

Last synced: 05 Jan 2026

https://github.com/Mermade/oas-kit

Convert Swagger 2.0 definitions to OpenAPI 3.0 and resolve/validate/lint

api conversion converter documentation linter linting openapi openapi-specification openapi3 openapi3-1 swagger validator

Last synced: 02 Apr 2025

https://github.com/danielgtaylor/apisprout

Lightweight, blazing fast, cross-platform OpenAPI 3 mock server with validation

docker-image examples hacktoberfest mock-server openapi openapi3

Last synced: 04 Apr 2025

https://github.com/RobinTail/express-zod-api

A Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.

api documentation documentation-tool endpoint express hacktoberfest http json middleware nodejs openapi openapi-specification schema schema-validation server swagger swagger-documentation typescript validation zod

Last synced: 24 Mar 2025

https://github.com/Redocly/create-openapi-repo

🤖 Generator for GH repo to help you manage the OpenAPI definition lifecycle

api-documentation gh-pages openapi openapi3 openapi31 swagger

Last synced: 18 Jul 2025

https://github.com/rookie-luochao/openapi-ui

OpenAPI/Swagger UI document, quickly generate mock params and call api, also simplified postman tool. 基于 OpenAPI/Swagger 规范的接口文档，快速模拟请求参数并调用接口，也是简化版 postman 工具，欢迎提功能请求、bug

api-documentation oasv3 openapi openapi-specification openapi-ui openapi3 openapi31 openapiui postman swagger swagger-ui swagger2

Last synced: 14 May 2025

https://github.com/redocly/create-openapi-repo

🤖 Generator for GH repo to help you manage the OpenAPI definition lifecycle

api-documentation gh-pages openapi openapi3 openapi31 swagger

Last synced: 15 May 2025

https://github.com/ardatan/fets

🗹 TypeScript HTTP Framework focusing on e2e type-safety, easy setup, performance & great developer experience

fetch fetch-api json-schema openapi swagger typescript whatwg whatwg-fetch zod

Last synced: 25 Jun 2025

https://github.com/chinachu/mirakurun

A Japanese digital TV tuner API server specifically designed for "Air"

chinachu client dtv dvb dvr epg isdb javascript linux middleware mirakurun openapi server typescript

Last synced: 13 May 2025

https://github.com/marshmallow-code/flask-smorest

DB agnostic framework to build auto-documented REST APIs with Flask and marshmallow

apispec flask marshmallow openapi python python3 rest-api webargs

Last synced: 12 Dec 2025

https://github.com/answerdotai/ghapi

A delightful and complete interface to GitHub's amazing API

api-client github github-api nbdev openapi

Last synced: 28 Feb 2026

https://github.com/adawg4/openapi-autospec

Proxy server that generates API specs for any app or website on localhost.

api apidoc-generator devtools documentation-generator generator openapi openapi-specification openapi3 proxy-server specification

Last synced: 13 Apr 2025

https://github.com/BenLorantfy/nestjs-zod

All NestJS + Zod utilities you need

javascript nest nestjs node nodejs openapi typescript zod

Last synced: 02 Mar 2025

https://github.com/openapistack/openapi-backend

Build, Validate, Route, Authenticate and Mock using OpenAPI

express hacktoberfest mock nodejs openapi router serverless swagger

Last synced: 24 Mar 2025

https://github.com/readmeio/api

🚀 Automatic SDK generation from an OpenAPI definition

api openapi sdk swagger

Last synced: 14 May 2025

https://github.com/Adawg4/openapi-autospec

Proxy server that generates API specs for any app or website on localhost.

api apidoc-generator devtools documentation-generator generator openapi openapi-specification openapi3 proxy-server specification

Last synced: 22 Jul 2025

https://github.com/ardatan/feTS

🗹 TypeScript HTTP Framework focusing on e2e type-safety, easy setup, performance & great developer experience

fetch fetch-api json-schema openapi swagger typescript whatwg whatwg-fetch zod

Last synced: 26 Mar 2025

https://github.com/yonaskolb/swaggen

OpenAPI/Swagger 3.0 Parser and Swift code generator

cli code-generation formatter generator library oas openapi parser stencil swagger swift template yaml

Last synced: 12 Apr 2025

https://github.com/yonaskolb/SwagGen

OpenAPI/Swagger 3.0 Parser and Swift code generator

cli code-generation formatter generator library oas openapi parser stencil swagger swift template yaml

Last synced: 25 Mar 2025

https://github.com/yelp/bravado

Bravado is a python client library for Swagger 2.0 services

openapi python

Last synced: 29 Apr 2025

OpenAPI Specification Awesome Lists
best-of-web-python 848 awesome-integration 686 awesome-jsonschema 94 awesome-corporate-standards 76
OpenAPI Specification Categories
Papers 719 Projects 396 Integration Patterns 200 Resources 181 Django Utilities 161 Adoption 160 Others 116 Third-party Web APIs 93 Web Testing 85 Authorization & Authentication 83 Web Frameworks 75 Flask Utilities 68 Web Scraping & Crawling 48 OpenAPI Utilities 44 HTTP Clients 41 Videos 32 Markdown 28 Monitoring 25 Websocket Utilities 25 Web UI 25