401 application/problem+json
application/problem+json. Branch on type (a stable URI), not on title
or detail (human-readable, may change).
When it occurs
The credential could not be authenticated. In most cases the API returnsinvalid-credentials for a bad key; this generic variant is emitted on the fallback path.
How to fix
Confirm you are sending the full plaintext key, or rotate it at permitcore.io/account/api-keys. Not retryable unchanged. Not retryable — fix the request before resubmitting; retrying unchanged returns the same error. See the full error catalog for the response shape and retry matrix. Every response carries anx-request-id header — include it in any support request.