FastAPI Conf 2026

The first conference dedicated to FastAPI, one day and one track at the Transformatorhuis, a former industrial hall in Amsterdam's Westerpark. Sebastian Ramirez, who created FastAPI, gives the opening keynote at 09:30. Also speaking: Jason Liu of OpenAI on building with FastAPI in Codex, Samuel Colvin of Pydantic on constrained optimism, Marcelo Trylesinski on the framework's performance history, Francois Voron of Polar on API versioning without a /v2, Pieter Cailliau of Redis on what agents need beyond an API, and Ben Falk of the Space Telescope Science Institute on data delivery. Mark Smith of JetBrains hosts, an open panel with the FastAPI team closes at 17:30, and there is an after party from 19:00. Check-in from 08:30. Invited speakers only for this first edition. Paid. Why go: the maintainers of FastAPI, Pydantic, Starlette and Uvicorn in one room, which has not happened before. For Python backend and ML-platform engineers.