nf_live_ → rlx_

Key prefix migration window and how to rotate without downtime.

New inference keys use the rlx_ prefix. Existing nf_live_ keys remain accepted for approximately 90 days from the migration announcement.

Steps

1. Create a new rlx_ key (or rotate) in the dashboard.
2. Update secrets in Cursor / CI / agents to the new key.
3. Revoke the old key after traffic moves.
4. Run Doctor if requests fail with 401.

See the changelog entry for the public identity change.