While working on a project that required OpenAPI docs across multiple frameworks, I got tired of maintaining separate solutions. I liked FastAPI’s clean and intuitive routing, so I built FastOpenAPI, bringing a similar approach to other Python frameworks (Flask, Sanic, Falcon, Starlette, etc).

It's meant for developers who prefer FastAPI-style routing but need or want to use a different framework.

The project is still evolving, and I’d love any feedback or testing from the community!