API Keys

Open Settings → API Keys (/settings/api-keys). Create a key, name it, and store the value — it is shown once.

The same key can serve:

Use	How you send it
Telemetry	OTLP header x-api-key to /api/ingest
Vault / offline evals	Authorization: Bearer <key> to the ARMS base URL

See ARMS destination and Retrieve Secrets.