msgspec

Light, flexible and extensible ASGI framework | Built to scale

Generate Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON/YAML/CSV.

The fastest Python web framework, built on Django. Rust (Actix Web) HTTP server + async typed handlers + msgspec, with the full Django ORM, Admin, middleware and auth. 300k+ req/s, no gunicorn/uvicorn.

Simple and powerful factories for mock data generation

A Query Mapper for Python

Unified API for working with multiple dataclass-like libraries

Generate Click options from msgspec types

Manage safe/deny CIDR lists

Generate typed Python API clients from OpenAPI 3.0/3.1 specs, built on unihttp. adaptix/pydantic/msgspec models, sync & async clients, mypy --strict-clean output

Spec-driven backend platform for FastAPI: REST + GraphQL + search + version history + admin UI from a single msgspec.Struct

⚡ Blazing-fast async MongoDB ODM with msgspec serialization and automatic collection binding

Generic communication library

The Modern Python CLI Framework

modern sdk for @remnawave

Easily spot regressions in your tests.

Build rich Discord Webhook API interactions with a typed Python API.

A rewrite of Airbrakes aimed at being clean and concise.

msgspec-conf: a msgspec-based settings loader for Python. Load structured config from env vars, .env, YAML and TOML. A lightweight pydantic-settings alternative.

A Msgspec Sqlalchemy Library

High-performance ASGI framework — drop-in FastAPI replacement. 8.7x faster routing, 9.4x faster JSON, radix tree router, compiled DI, uvloop, msgspec.