> ## Documentation Index
> Fetch the complete documentation index at: https://help.nops.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Errors

> Public API error format and status codes

# Errors

Failed requests return JSON:

```json theme={"theme":{"light":"github-light","dark":"github-dark"}}
{
  "error": {
    "code": "invalid_credentials",
    "message": "Invalid API key",
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}
```

## Common codes

| HTTP | Code | Meaning |
| - | - | - |
| 401 | `missing_credentials` | No `Authorization: Bearer` header |
| 401 | `invalid_credentials` | Key invalid or revoked |
| 403 | `forbidden_scope` | Key lacks required scope |
| 403 | `forbidden_entitlement` | Your organization needs **Inform + Operate** (or a higher tier) for this endpoint |
| 404 | `not_found` | Resource not found (no cross-tenant leakage) |
| 429 | `rate_limited` / `quota_exceeded` | Throttled |
| 503 | `service_unavailable` | Identity validation unavailable (fail closed) |

Include `request_id` when contacting support.

For pagination on list endpoints, see [Pagination](/developers/pagination).


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