Missing application ID

The X-App-Id header is absent or empty.

Client-side requests must include a valid application ID through the X-App-Id header.

Response

All error responses follow the Problem Details (RFC 9457) format. The type, title, status, and detail fields are always present, while instance may be omitted depending on the API.

Here is an example of the response returned for this error:

{  "type": "https://croct.help/api/authentication/missing-public-id",  "title": "The application ID is missing.",  "status": 401,  "detail": "The request must include an application public ID, but none was provided.",  "instance": "/client/web/content"}