Utoipa
Auto-generates OpenAPI documentation for Rust REST APIs using simple procedural macros and a code-first approach.
What is Utoipa?
utoipa is a Rust library that automatically generates OpenAPI 3.1 documentation from Rust code. It uses procedural macros to annotate types and handlers, eliminating manual YAML or JSON tweaking and treating code-first documentation as a first-class citizen.
Rust developers building REST APIs with web frameworks like Actix Web, Axum, or Rocket who need standards-compliant OpenAPI documentation.
Developers choose utoipa for its minimal, simple, and fast approach to auto-generating OpenAPI specs directly from code, with seamless framework integration and support for generic types and runtime modifications.
Overview
Simple, Fast, Code first and Compile time generated OpenAPI documentation for Rust
Use Cases
Best For
- Automatically generating OpenAPI 3.1 documentation from Rust code annotations.
- Integrating OpenAPI documentation with Actix Web, Axum, or Rocket frameworks via feature flags.
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