Issue Summary

When sending a POST request to the https://api.trello.com/1/boards/ endpoint with a missing token parameter, the API correctly returns a 401 Unauthorized status, but the response body contains the {"message": "missing scopes"}
This message is misleading and does not clearly communicate that the request failed due to a missing authentication token, making it difficult for developers to quickly identify and resolve the issue.

Steps to Reproduce

1. Obtain a valid Trello API Key (no token).
2. Send a POST request to the boards endpoint with only the API Key: {{POST https://api.trello.com/1/boards/?key=\ {apiKey}

   &name=TestBoard}}

3. Observe the response status and body.

Expected Results

 The API returns a 401 Unauthorized response with a clear and descriptive error message that identifies the authentication issue, for example:

{"message": "Authentication credentials are missing or invalid. A valid token is required to access this endpoint."}

Actual Results

The API returns a 401 Unauthorized response with the following body:

{"message": "missing scopes"}

This message does not clearly indicate that a token is missing, causing confusion for developers who may not immediately understand the cause of the error.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available