401 Revoked key
This key was explicitly revoked and will not work again.
Revocation is permanent — there is no un-revoke. Create a new key and replace it wherever it is embedded.
Revocation propagates within 30 seconds, so a key you just revoked may keep working briefly. That window is documented and intentional: it is the cost of the API not doing a database lookup on every request. If you revoked a key because it leaked, treat those 30 seconds as part of your exposure.