Fast API

A high-performance Python framework for building APIs based on standard type hints and Pydantic validation.

FastAPI leverages Starlette and Pydantic to deliver speeds competitive with Go and Node.js. It automates interactive documentation via Swagger UI and ReDoc (OpenAPI) while enforcing strict data validation through Python 3.8+ type hints. Developers reduce boilerplate by 40 percent and eliminate common runtime errors through integrated editor support and asynchronous concurrency (async/await).

https://fastapi.tiangolo.com