# Signature required (`signature_required`)

This API key must sign its requests.

## Fix: Change the request (`fix.kind: change`)

- **The person:** Nothing, unless the agent asks you which value you meant.
- **The agent:** Read the message, change the field or path it names, and send the call again.
- **Run the call again:** yes, once the fix is done.

Every Vamo error body carries `fix` and `docs`. All guides: https://vamotalent.com/docs/errors