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fastapi.tiangolo.com
FastAPI
@fastapi.tiangolo.com
FastAPI framework, high performance, easy to learn, fast to code, ready for production. 🚀

Web APIs with Python type hints. 🐍

By @tiangolo.com 🤓

GitHub: https://github.com/fastapi/fastapi
Web: https://fastapi.tiangolo.com/
The FastAPI CLI now supports declaring the entrypoint (your app location) in pyproject.toml ✨

Configure there once, and then you can just run:

$ fastapi dev

...without having to pass a file path 😎

Thanks @patrick.wtf! 🙌
November 10, 2025 at 3:56 PM
Here's FastAPI 0.119.0 🚀

With support for both @pydantic.dev v2 and v1 on the same app, at the same time 🤯

This is just so you can migrate to Pydantic v2 if you haven't done it yet, here's your (last) chance! 🤓

Pydantic v1 is now deprecated ⛔️

Read more fastapi.tiangolo.com/how-to/migra...
October 11, 2025 at 5:33 PM
Now you can use the entrypoint syntax with the FastAPI CLI 🚀

(fastapi-cli version 0.0.11)

Thanks @patrick.wtf! 🙌
September 9, 2025 at 1:44 PM
FastAPI is now officially the most used web framework by Python developers 😁🚀🎉

From the Python Developer Survey 🐍

blog.jetbrains.com/pycharm/2025...
August 20, 2025 at 10:47 AM
"The +5 point increase for FastAPI is one of the most significant shifts in the web framework space."

"This signals a strong trend towards using Python for building performant APIs and reflects the overall strength of the Python ecosystem."

🤯🐍🚀

survey.stackoverflow.co/2025/technol...
July 29, 2025 at 5:01 PM
The cake was not a lie.
June 20, 2025 at 4:35 PM
FastAPI now has 84k GitHub stars ✨

FastAPI is now the most starred backend framework 🎉

...not only in Python, in all programming languages 🤯

Thanks to all who inspired it and paved the way 🙌

And thank you for adopting it! 🍰☕️

github.com/fastapi/fast...
May 4, 2025 at 11:22 AM
FastAPI has been downloaded 1 billion times. 😮🥳🎉

1,000,000,000 downloads.

That's a lot! 😁🚀

github.com/fastapi/fast...

You can check it in pepy.tech/projects/fas...
January 20, 2025 at 4:52 PM
The command fastapi (the FastAPI CLI) now looks so much nicer 😎

It now uses @patrick.wtf's rich-toolkit 🎨

To get it, upgrade your dependencies with fastapi[standard] 🤓

Or manually upgrade the package fastapi-cli to the latest version: 0.0.6 🚀
December 4, 2024 at 2:47 PM