FastAPI
AdoptOpen Sourcev0.115.6Latest release: January 10, 2025
Modern, fast Python web framework for building APIs
pythonapiweb-framework
Advantages
- Fast performance
- Auto documentation
- Type validation
- Async support
Considerations
- Python only
- Smaller ecosystem than Flask/Django
PricingFree tier: Fully open source
Use Cases
ML APIs
Microservices
AI backends
Alternatives
Flask
Django
Starlette
Release History
0.115.6January 10, 2025
FastAPI 0.115.6
Bug fixes
0.115.0October 15, 2024
FastAPI 0.115
New lifespan support
0.100.0July 15, 2023Major Release
FastAPI 0.100
Pydantic V2 support