FastAPI
fastapi.tiangolo.comHigh performance, easy to learn, fast to code, ready for production
Dev Toolspythonweb-frameworkapirest-apiopen-sourceopenapiasync
About
FastAPI is a modern, high-performance Python web framework for building APIs, leveraging standard Python type hints for automatic data validation, serialization, and interactive documentation. It is built on top of Starlette and Pydantic, making it one of the fastest Python frameworks available. It is open source and fully compatible with OpenAPI and JSON Schema standards.
Problem
Building production-ready Python APIs is often slow, error-prone, and lacks automatic documentation and data validation.
For
Python developers building web APIs and backend services
How it works
Developers declare API endpoints and data models using standard Python type hints, and FastAPI automatically handles validation, serialization, and generates interactive API documentation.
Business model
open-source
Status
launched