Sebastián Ramírez
@tiangolo
Creator of @FastAPI, Typer, SQLModel, Asyncer, etc. 🚀 From 🇨🇴 in 🇩🇪 . Open Source, APIs, and tools for data/ML. 🤖
I saw a job post the other day. 👔 It required 4+ years of experience in FastAPI. 🤦 I couldn't apply as I only have 1.5+ years of experience since I created that thing. 😅 Maybe it's time to re-evaluate that "years of experience = skill level". ♻
It took me years to finally start a company. I was avoiding it. 😅 But now I started @fastapilabs to build @FastAPIcloud with an awesome team. 😎 Also, to keep developing the open source projects, @FastAPI and friends. 🚀 Here's my thought process and reasons behind it all. 🤓
Why @fastapilabs, why @FastAPIcloud? 🚀 Why a cloud dedicated to @FastAPI by the same team behind it? And why now? 🤓 What about the open source projects? 🎁 All in the new blog post: fastapicloud.com/blog/why-fasta…
"[At @OpenAI] Pretty much everything operates around @FastAPI to create APIs and @pydantic for validation" 🚀 - @calvinfo calv.info/openai-reflect…
![tiangolo's tweet image. "[At @OpenAI] Pretty much everything operates around @FastAPI to create APIs and @pydantic for validation" 🚀
- @calvinfo
calv.info/openai-reflect…](https://pbs.twimg.com/media/GwAFthaXMAAONVB.jpg)
My @europython keynote is this Thursday 17th 🎉 Behind the scenes of @FastAPI and friends for developers and builders ✨ I'm practicing speaking faster, I have so many tips to share! 🤓 It also has a lot of @alejsdev's cute axolotls 🍰 ep2025.europython.eu/session/behind…

For Halloween, I'll dress up as auto-complete-man. 🦸⌨️
The Gotham City of GitHub, and the Hero It Deserves. “You’re like a Batman for open source packages. You swoop in, fix the autocomplete, and leave a PR behind.”
Get your favorite soda and go update your @FastAPI 😎 Thanks @patrick91! 🥤
Here's FastAPI 0.115.14 🚀 @patrick91 fixed support for unions of @pydantic models in Form data. 🐛🎉 (This will make it easier to implement single sign-on 😉) github.com/fastapi/fastapi
I had a lot of fun in this podcast with @mlopscommunity 🎙️ We chatted about my (secret) ML background 🤖 Lots of @FastAPI, how that's related to starting @fastapilabs and @FastAPIcloud, and many of my particular views on building (or not building) things. 🤓
Big News from the MLOps Community Podcast! We got to hang out with the @tiangolo—yes, the creator of FastAPI and now the brains behind @fastapilabs—and let’s just say, this one’s a gem.
Go update your @FastAPI 😎🎁
Here's FastAPI 0.115.13 with a bunch of bug fixes and tweaks 🎁 Special thanks to Yurii for all the work handling discussions and PRs! 🙌 github.com/fastapi/fastapi
New drinking game, every time I say "eh" you take a shot. Or a sip. It can be coffee. I don't want to get you drunk so early. ☕ BTW, "eh" is the Spanish "thinking" expression equivalent to "ah" in English. 😂
FastAPI in Space and AI? 🤯 youtube.com/shorts/fzXX1Ts… via @YouTube
At @pyconit we had swag for @FastAPIcloud (@fastapilabs) and @FastAPI and friends. 🎁 Did you get one of our stickers, t-shirts, or Colombian coffee bags? I wanna see pics, share them here! 🖼️




Sebastian Ramirez is Creator of FastAPl, Typer, SQLModel, Asyncer and other open source tools, talked with us about their experience during PyCon Colombia, and other interesting topics Watch and share! youtu.be/Axma6LF86h0 #PyConColombia2024 #Community #Evento #Pycon
Durante @pyconcolombia, el año pasado, @karobotco me hizo una entrevista en español. Ya está disponible. 🇨🇴🚀🎉 youtube.com/watch?v=Axma6L…
We were at @pyconit last week with part of the @fastapilabs (and @FastAPI) team, we had a blast chatting about @FastAPIcloud! 🤌🍕 Thanks to everyone who came to say hi for all the great conversations! 🚀




Typer has been upgraded to support the latest Click. Want to learn how to use Typer to create powerful CLI applications: buff.ly/mAIDiu4
Here's Typer 0.16.0, with support for the latest Click 8.2 🚀 github.com/fastapi/typer
My opening keynote for @JOTBConf (from 2 weeks ago), live coding a @FastAPI app and deploying to @FastAPIcloud, is now live 🚀
Here is the video from @tiangolo for the Opening Keynote of @JOTBConf 2025! Discover how Sebastián Ramírez introduces FastAPI Cloud. youtube.com/watch?v=asohRl…
Here's Typer 0.16.0, with support for the latest Click 8.2 🚀 github.com/fastapi/typer
I have never been to Taiwan. But this year I'll get the chance to give a keynote at PyCon Taiwan! 😁🚀 🇹🇼 I'll share a big mix of random tips learned from open source, applicable to products. 🤓
🚀 What’s behind FastAPI, Typer & SQLModel? At #PyConTW2025, creator @tiangolo shares the real story—design choices, wild lessons & dev tips you won’t find in the docs. A 45-min brain dump you’ll wish was longer. 🎟️Get ticket now👉lihi.cc/pGhon #FastAPI #Python
Excited to have @tiangolo on our podcast this week! 🎉 youtu.be/Q_8aXh33Cpk Code, click, cloud - how Sebastián Ramírez is taking FastAPI to the next level 😍 💡 🚀
I had a lot of fun chatting with @bbelderbos about open source, @FastAPI, and also @fastapilabs and @FastAPIcloud on the @pybites podcast. 😁 🚀 You might get a more personal view of how I think about all this stuff. 🤓
Thanks for joining us @tiangolo 🎉 and for all you do with @FastAPI, other libs, and now @FastAPIcloud 😍 It will be so nice to deploy with just: `fastapi deploy` 🚀 Learn more below 💡🎧
Come to the Python side, there will be cake. 🎂
Just built my first CRUD app with @FastAPI today and I'm blown away! 🚀 The speed and simplicity of building APIs with this framework is incredible. Definitely living up to its name! #FastAPI #Python #WebDev"
Where is everyone? At Sebastián Ramírez’s Open Keynote of course!! (@tiangolo) #JOTB25 #TechConference #Sohrlin