FastAPI
A modern, fast web framework for building APIs with Python
A high performance, easy to learn, fast to code, and ready for production framework
How Users feel about FastAPI
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What reviewers say about FastAPI
Makers consistently praise FastAPI for cutting boilerplate and speeding delivery. The makers of Polar highlight automatic OpenAPI generation that streamlines SDK creation and keeps focus on business logic. The makers of Writesonic call it a very capable backend choice, while the makers of Reflex report smooth async state updates, file uploads, and clean API routing. Broader feedback applauds strong performance, clear docs, and easy validation/DI, with several teams switching from Flask for faster iteration and more maintainable codebases.
This AI synopsis blends highlights gathered from recent reviewers.
How people rate FastAPI
Based on 13 reviews
Recent highlights
Trace-AI’s core services are built using FastAPI for its async-first design and blazing performance. It allows us to deliver lightweight, responsive API endpoints for dependency scoring and compliance automation.
Nice backend, good performance, simple syntax, and very very good documentation (especially compared to Flask)!
I don't really think about the fastapi very much in the project, which I think is the whole point. It's easy to generate a typed API client, and easy to keep the project organized. It sufficiently just works that I will continue to reach for it.