Robyn

Robyn is a web framework that runs its core request-handling engine in Rust while exposing a familiar Python API on top — the goal being performance closer to Rust web frameworks without asking Python developers to write any Rust themselves.

It’s a newer entrant compared to FastAPI or Starlette, aimed specifically at teams that have hit real throughput limits with pure-Python async frameworks and want an escape hatch that doesn’t mean rewriting the application in a different language.