Unable to create new boards using API endpoint

[AppConnect]

As of recently, 

Unable to create new boards using API endpoint

request consist of only name, api key, access token as query param.
Response is as given

{ "message": "Unable to auto-create an organization.", "error": "UNAUTHORIZED_ERROR" }

The API call used to work till october 2024

If "idOrganization" is required param, then why is it not updated in docs?
https://developer.atlassian.com/cloud/trello/rest/api-group-boards/#api-boards-post 

[Rasmus Wulff Jensen]

Could it be that the API key previously only had access to a single Workspace so it could be defaulted, and now it have access to more Workspaces, so it can't know which of the workspaces it should create the board in?

[AppConnect]

It seems like earlier boards were not associated with a specific Workspace, as indicated by the "idOrganization": null field when retrieving existing boards.

So I doubt whether that is the case.