API reference
Sunbeam exposes one controller route in the repository:
POST /api/v1/grade
The request is multipart/form-data with required parts named image and answers. See Grade exam for the request and response contract and Errors for the actual failure behavior.
There is no authentication mechanism in ProcessController, no CLI, and no generated OpenAPI contract in the repository. Compatibility should therefore be treated as source-defined behavior rather than a versioned public schema.