unauthorized
HTTP 401, application/problem+json. When: invalid, revoked or expired key.
What to do
The key is malformed, unknown, revoked or expired. Send it as Authorization: Bearer nop_live_… (or nop_test_…). After 50 invalid keys from one IP address within 10 minutes, that address is blocked for the rest of the window (rate_limited) for keys we do not already know.
See all codes on Errors. Include the request_id when you contact support.