Litestar: The Modern Python ASGI Framework

Fast APIs with automatic OpenAPI documentation, dependency injection, type safety, and a lot of batteries included. Litestar makes designing complex web apps simpler
RapiDoc integration.
Elements integration.
Swagger UI integration.
The most popular data validation library for Python.
Python's built-in dataclasses with full support for serialization and validation.
Python classes without boilerplate. Mature and battle-tested with excellent performance.
Type hints for dictionaries with specific key-value types and API responses.
Fast serialization and validation library with JSON and MessagePack support.
Litestar is 100% powered by our passionate open source community.
A modern, fast Python ASGI framework for building APIs that scale.
© 2026 Litestar. Released under the MIT License.