API documentation
Suggestion
It is strongly recommended to automate the process of documenting API routes using libraries like Swagger UI and a documentation format that is compliant with the OpenAPI standards. To that extent, the API service library should be selected in a way that causes little to no concern in integrating an automated API documentation system.
This can ensure that not only little effort is spent on the documentation but can also help avoid human errors that might creep in when documenting the routes, the expected request contents and the inferred response contents. The API documentation might need a test access token with limited privileges if present beyond authentication.