AsyncAPI How-To

AsyncAPI 3.0.0 is the latest major version of the AsyncAPI specification, an open-source format for describing and documenting event-driven APIs.

The AsyncAPI website provides tutorials and a full specification for AsyncAPI:

Coming from OpenAPI - comparing/contrasting OpenAPI and AsyncAPI

Getting Started with AsyncAPI

Streetlights Tutorial

If you are using OpenAPI 2.0 (Swagger 2.0), see this tutorial instead. If you are using OpenAPI 3.0, see this tutorial instead.