
FastAPI
@FastAPI
FastAPI framework, high performance, easy to learn, fast to code, ready for production. 🚀 Web APIs with Python type hints. 🐍 By @tiangolo 🤓
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Hello World! 👋 This is the new official FastAPI Twitter account! 🎉 (Tweets by @tiangolo 🤓)

Here's FastAPI 0.119.0 🚀 With support for both @pydantic 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/migrate…

Who's hungry? There's pi 🥧 FastAPI 0.118.3 has official support for Python 3.14 🎉 Big thanks to @OxyKodit for a long debugging and preparation process! 🙌 And shoutout to @1st1 and @fantix from @geldata for the new httptools with support for 3.14 🙇
Here's another quick FastAPI bug fix release, 0.118.2 🚀 This fixes a use case with Pydantic models using discriminated unions in the body. 🐛 (If you don't understand or use that, no need to worry about it either 😎) Thanks @fvoron! 🙌 And thanks @patrick91 and Yurii! 🍰
Here's FastAPI 0.118.1, with compatibility for the latest @pydantic. 🚀 This one had the combined effort of the community, the @pydantic team, and the @FastAPI team, all together. 🙌 github.com/fastapi/fastapi
In your @FastAPI apps, are you using @pydantic version 1 or 2? If v1, why haven't you upgraded to v2? 🤔 I wanna make sure everyone upgraded or can upgrade so that I can remove support for v1.
FastAPI 0.118.0 was just released 🎁 🐛 This fixes a bug when using a StreamingResponse and dependencies with yield or UploadFile. Details: Now the exit code of dependencies with yield runs after the response is sent back. If you want to read more: fastapi.tiangolo.com/advanced/advan…
What's a better weekend treat than a release packed with features and bug fixes? 🍰 FastAPI 0.117.0 has too many things to list. ✨ Check the release notes: fastapi.tiangolo.com/release-notes/ Shoutout to YuriiMotov for the work reviewing and tweaking PRs! 🙌
Just released, fastapi-cli version 0.0.12 🤓 With support for the PORT environment variable, used by many cloud providers. 🚀 Just use: ✨ fastapi run ✨ Thanks @BurroMarco! 🙌
Here's FastAPI 0.116.2 with support for the latest Starlette 🚀 github.com/fastapi/fastapi
Now you can use the entrypoint syntax with the FastAPI CLI 🚀 (fastapi-cli version 0.0.11) Thanks @patrick91! 🙌

Universal deep research which wraps around any LLM by Nvidia What is more important!? It uses @FastAPI 🥳
💻 NVIDIA introduces Universal Deep Research, a system that lets users plug in any LLM and run custom research strategies as code. This breaks from fixed deep research products by handing over control of model choice, source rules, verification, and spend. A natural language…

I was just checking, and @FastAPI has been downloaded 4,297,849 times... in the last day. 4M+ times a day. 🚀 That also means that, since you started reading this post, it has been downloaded around 400 times. 🤯 pypistats.org/packages/fasta…
polar is open source, and built with open source technology to a large degree the polar open source stack™ — would never have been possible without... python backend > @FastAPI by @tiangolo > Starlette, HTTPX & Uvicorn > Dramatiq > @pydantic > @sqlalchemy > Authlib by…
FastAPI is now officially the most used web framework by Python developers 😁🚀🎉 From the Python Developer Survey 🐍

🚀 FastAPI adoption jumped from 29% to 38% in one year. 📈 Pydantic grew from 22% to 30%. @ArjanCodes says it’s proof developers value performance, type safety, and great DX. What tools are you most excited about in 2025? See more insights from the State of Python: 🔗…

It's always great to chat with Brian 😁 He was the first person ever to mention @FastAPI in a podcast 😎 In this episode, some thoughts around @fastapilabs and @FastAPIcloud 🎙️ testandcode.com/episodes/fasta…
"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/technolog…

Happy birthday to @djangoproject! 🎂🎉🤗
Happy 20th birthday Django! 💝🎂🎉 djangoproject.com/weblog/2025/ju… Our open source journey started 20 years ago today, on July 13th 2005. Come celebrate this big milestone at one of our many community events this year #Django #DjangoBirthday
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