OpenAPI
OpenApiGenerator builds an OpenAPI 3.0.3 document from application-registered operations. Add GET, POST, PUT, PATCH, or DELETE operations, schemas, tags, and bearer or API-key security schemes, then expose the resulting JSON and swagger_ui_html() from your router.
Arqen does not infer every application route automatically. Register the public contract beside the route and test that the generated document matches the deployed behavior.
Treat the document as an interface for people, SDKs, automation, and agents. Do not publish internal credentials, implementation-only routes, or schemas that the server does not actually enforce.