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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Big news: the first-ever ✨ FastAPI Conf ✨ is coming! 📍 Amsterdam 📅 October 28 Meet the FastAPI team, connect with developers ☕️ 🎟️ Join the waitlist for early ticket access: fastapiconf.com
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FastAPI retweeted
Sometimes eating your own dog food can be such a nice experience! I 🫶 Typer so much... 👇 Just a quick preview of what we're building over at @Sevren_ai, building on top of the most wonderful open-source tools: @pydantic AI, @FastAPI, Typer, and @pidotdev. Expect an early beta release within the next week! And ofc it will be open-source, too💥
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Our first Gold Sponsor for FastAPI Conf is @runpod! 🎉 Runpod provides cloud GPUs for training and deploying AI models. Thank you for being part of the inaugural FastAPI Conference! 🙌 Oct 28, Amsterdam fastapiconf.com/#supported-b…
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FastAPI now has built-in OpenTelemetry support, natively 📈 No extra code needed. See how your app behaves in production. Go and upgrade to "fastapi[standard]" version 0.142.2 ⬆️ Read the docs: fastapi.tiangolo.com/advance…
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Psst, that screenshot is on FastAPI Cloud 🤫
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Replying to @FastAPI
Haha, I just implemented tracing with open telemetry in a FastAPI, guess I need to update and refactor now 🙈 Does it also cover database tracing via sqlmodel or sqlalchemy?
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DBs are traced by the same OpenTelemetry tools (monkeypatching SQLAlchemy). You no longer need to configure the FastAPI Instrumentor, but still the DB stuff. FastAPI uses the same OTel API (and SDK) so everything is compatible.
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Replying to @FastAPI
Can you run this with logfire or would they conflict, or do you need to add a special flag to avoid issues?
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It was implemented having Logfire and Sentry into account, they reviewed it. Could be used together, and their implementation and config could be simplified.
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FastAPI retweeted
FastAPI is a platform to build on.
I think this is big. 🌠 FastAPI's objective is to provide what you always need for real prod apps. And not provide what you don't. You always want metrics, there's just not enough time to always set it all up. Now it's just there, by default.
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Building AI agents with FastAPI? 🤖 Come and learn from @cailliaup of @Redisinc at FastAPI Conf: streaming LLM responses, shared state, caching, and keeping work running after a client disconnects. 🤓 fastapiconf.com/speakers/#pi…
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Looking forward to @FastAPI Conf!
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Still thinking about coming to FastAPI Conf? Regular ticket pricing ends on September 27. Grab your ticket before prices go up! fastapiconf.com
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SQLModel 0.0.47 adds direct support for Postgres, MySQL, MariaDB 🐘 sqlmodel.tiangolo.com (It was already supported via SQLAlchemy, but now all the SQLModel tests run with each DB)
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The talk needed a /v2 😬 So proud to be part of this incredible speaker lineup!
Talk update 🎙️ @fvoron is bringing a new topic to FastAPI Conf 2026: You don’t need /v2: API Versioning with FastAPI Come and learn the latest tricks from @polar_sh, including a custom SDK for clients, based on the new FastAPI versioning system 🤖 fastapiconf.com/speakers/#fr…
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Talk update 🎙️ @fvoron is bringing a new topic to FastAPI Conf 2026: You don’t need /v2: API Versioning with FastAPI Come and learn the latest tricks from @polar_sh, including a custom SDK for clients, based on the new FastAPI versioning system 🤖 fastapiconf.com/speakers/#fr…
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Argon2 or bcrypt? Which one would you choose for a production authentication system, and why?
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What about both, as implemented in @FastAPI full stack template? Ref: github.com/fastapi/full-stac…
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bcrypt for backwards compatibility with existing passwords, argon2 for any newly created ones 🔒️
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Want to learn tips and tricks for building FastAPI apps with AI, directly from @jxnlco on the Codex team at OpenAI? 🤓 Join us at FastAPI Conf in Amsterdam! 🚲 Psst, Sep 20 is the deadline to select your T-shirt size. 👕 fastapiconf.com/speakers/#ja…
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What makes FastAPI fast, and how much faster can it get? ⚡ Come and learn from @marcelotryle , maintainer of Starlette and Uvicorn: surprising bottlenecks, Rust and Zig experiments, and what's next. 🤓 Join us at FastAPI Conf! fastapiconf.com/speakers/#ma…
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Want your FastAPI Conf T-shirt in your size? 👕 Get your ticket and select your size by September 20! Tickets bought after that still include a T-shirt, but your size won't be guaranteed. Join us in Amsterdam! 🚲 fastapiconf.com
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How does FastAPI help deliver NASA's James Webb Space Telescope data around the world? 🔭 Come and learn from @benjamin_falk at FastAPI Conf: FastAPI and the tech stack used at the Space Telescope Science Institute. 🌠 fastapiconf.com/speakers/#be…
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I've consumed lots of @FastAPI knowledge in the recent days. And I can't remember the last time I felt this way. The more I learn the more I want to keep going. Tirelessly! Cool stuff. Cool technology. Can't wait to try it out in the wild!
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Pydantic is the data building block of FastAPI. 🏯 In these past years, it became the data building block of AI... and virtually all Python data validation. 🐍 Come and learn directly from @samuelcolvin, the author of @pydantic, how he uses AI to code. fastapiconf.com/speakers/#sa…
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