FastAPI
| FastAPI | |
|---|---|
| Developer | Sebastián RamÃrez |
| Initial release | December 5, 2018 |
| Stable release | 0.124.4
/ 12 December 2025 |
| Written in | Python |
| Type | Web framework |
| License | MIT |
| Website | fastapi |
| Repository | github |
FastAPI is a web framework for building HTTP-based service APIs in Python 3.8+. It uses Pydantic and type hints to validate, serialize and deserialize data. FastAPI also automatically generates OpenAPI documentation for APIs built with it. It was first released in 2018.