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What happened

Authentication required. For example: No bearer credential was sent.

What to do

Send ‘Authorization: Bearer <API key>’; SDKs read RASK_API_KEY. Authentication covers every 401. Keys are created in the web app, under Settings -> API keys. fix_request: change the request or its inputs; sent unchanged it fails again. none: do not retry the request unchanged.

Example

Operations that return it

Most operations: 82 of 82 declare it. The reference page of each operation lists its errors.