x-kanarie-api-key: YOUR_API_KEY header is also supported for current clients.
Include the key on every authenticated request.
Playground auth
In the API reference, paste your key into the auth field. Mintlify will include the header when you click Send.Authentication errors
Common authentication failures:| Status | Cause |
|---|---|
401 | Missing, malformed, invalid, revoked, or expired API key on API-key-only paths |
402 | x402 payment is required for no-key requests, failed API-key requests, or over-limit API-key requests on x402-enabled paths |
429 | Rate limit exceeded on API-key-only paths |
Kanarie has an internal service-key path for trusted backend calls. It is not part of the public API and is intentionally excluded from public docs.