User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

FastAPI framework, high performance, easy to learn, fast to code, ready for production

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.

The OpenAPI Specification Repository

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

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

🕸️ Create REST and GraphQL APIs, scaffold Jamstack webapps, stream changes in real-time.

💨 Fast, Async-ready, Openapi, type hints based framework for building APIs

Generate Go client and server boilerplate from OpenAPI 3 specifications

Light, flexible and extensible ASGI framework | Built to scale

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

Generate TypeScript types from OpenAPI 3 specs