401 Unauthorized · type authentication
When it happens
- There’s no
Authorizationheader, or it doesn’t start withBearer. - The key is truncated or mistyped. Every key carries a checksum, so a typo is caught straight away.
- The key doesn’t exist, or its prefix doesn’t match its mode.
Authorization: Bearer bl_live_.... A lost key can’t be recovered: an agency admin can revoke it and create a new one under API Keys in the portal.
Example
401 Unauthorized