Is there an OpenAPI spec/schema for the API?
Is there an OpenAPI spec/schema for the API?
Yes, AssemblyAI publishes an OpenAPI 3.1.0 specification for the REST API:
- openapi.yaml — OpenAPI 3.1.0 spec (YAML)
- openapi.json — OpenAPI 3.1.0 spec (JSON)
The spec covers all REST API endpoints including file upload, transcript submission and retrieval, and the LLM Gateway. You can use the spec to generate client libraries, validate requests, or import into tools like Postman.