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.
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
Full-stack web application template with FastAPI, React, SQLModel, PostgreSQL, Vite, Tailwind CSS, shadcn/ui, FastAPI Cloud, and Docker Compose.
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
📘 OpenAPI/Swagger-generated API Reference Documentation
🚀 自托管的抖音、TikTok 数据采集与无水印视频下载 API，支持 AI agent 通过 MCP 调用与离线语音转文字，Docker 一键部署。| Self-hosted TikTok & Douyin scraper and no-watermark video downloader — async REST API, MCP server for AI agents, CLI and web console, plus offline speech-to-text for downloaded videos. Self-healing identity pool, PostgreSQL archive, one docker compose up.
gRPC to JSON proxy generator following the gRPC HTTP spec
The Cloud-Native API Gateway and AI Gateway
Scalar is an open-source API platform: 🌐 Modern REST API Client 📖 Beautiful API References ✨ 1st-Class OpenAPI/Swagger Support
Automatically generate RESTful API documentation with Swagger 2.0 for Go.
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
Automagically reverse-engineer REST APIs via capturing traffic
💨 Fast, Async-ready, Openapi, type hints based framework for building APIs
🕸️ Create REST and GraphQL APIs, scaffold Jamstack webapps, stream changes in real-time.
Generate Go client and server boilerplate from OpenAPI 3 specifications
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
Created by OpenAPI Initiative, Tony Tam, Darrel Miller, Mike Ralphson, Ron Ratovsky, Uri Sarid, Jason Harmon
Released August 10, 2011
Latest release about 1 month ago