| ✕ 401 Unauthorized | UNAUTHORIZED | Missing, malformed, unknown, revoked, or expired key. |
| ✕ 403 Forbidden | API_ACCESS_DISABLED | API access is turned off for your account. |
| ✕ 403 Forbidden | INSUFFICIENT_SCOPE | The key doesn't have the scope this endpoint requires. |
| ✕ 404 Not Found | NOT_FOUND | Unknown route, or a resource that doesn't exist / isn't yours. |
| ✕ 409 Conflict | CONFLICT | The action can't be applied to the resource's current state. |
| ✕ 429 Too Many Requests | RATE_LIMIT_EXCEEDED | Per-minute or per-second limit hit. |
| ✕ 429 Too Many Requests | QUOTA_EXCEEDED | Monthly quota exhausted. |
| ✕ 500 Internal Server Error | INTERNAL_ERROR | Something broke on Stynar's end. |