TypeSpec AsyncAPIAsyncAPI 3.1 emitter for TypeSpec

Describe an event-driven API in TypeSpec and emit an AsyncAPI document.

Shared models

Keep your HTTP API and your async API in one TypeSpec workspace. Emit OpenAPI and AsyncAPI from the same models.

Verified conversion rules

Every input/output pair in these docs was generated by the actual converter — models, scalars, enums, unions, inheritance, discriminators, and validation keywords.

No silent drops

Anything the emitter cannot represent is omitted with a warning or reported as an error — never silently rewritten. Each diagnostic is documented with its cause and fix.