Open source pydantic projects
Every project in the registry tagged pydantic, ranked by real GitHub adoption.
FastAPI framework, high performance, easy to learn, fast to code, ready for production
💨 Fast, Async-ready, Openapi, type hints based framework for building APIs
Light, flexible and extensible ASGI framework | Built to scale
The Context Layer for unstructured data: typed, versioned datasets over S3, GCS, Azure
Related tags
Frequently asked questions
How many open source pydantic projects are there?
This registry tracks 4 projects tagged pydantic, with 122,879 GitHub stars between them. The most-adopted is fastapi at 102,402 stars.
Are these pydantic projects free to use?
Yes — 4 of the 4 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which pydantic project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these pydantic projects still maintained?
4 of the 4 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.