Source: https://01router.com/docs/errors
Base URL: https://01router.com/api/v1

# Errors

Check the HTTP status and error.message. Some rate-limit responses use a message envelope and Retry-After. Error codes for a given status can vary by endpoint.

## Response fields

| Field | Type | Required | Description | Constraints |
| --- | --- | --- | --- | --- |
| 400 · invalid_request | HTTP | — | Invalid body or parameter value |  |
| 401 · unauthorized | HTTP | — | Missing or invalid API key |  |
| 402 · insufficient_credits | HTTP | — | Not enough credits |  |
| 403 · invalid_request | HTTP | — | The key or project does not allow this model, provider or request origin. |  |
| 404 · not_found | HTTP | — | Unknown model or generation |  |
| 409 · not_cancelable | HTTP | — | The task cannot be canceled (already finished, or the provider does not support canceling) |  |
| 429 · rate_limited / concurrency_limit | HTTP | — | Too many requests — retry after the given seconds · Too many tasks running for this API key; wait for some to finish |  |
| 502 · upstream_error | HTTP | — | Every provider rejected the task (credits refunded) |  |
| 503 · no_provider / upstream_error | HTTP | — | No provider supports these parameters |  |
| 504 · timeout | HTTP | — | Image is still generating after the wait; poll GET /generations/:id |  |

## 401 · application/json

```json
{
  "error": {
    "message": "Invalid or missing API key",
    "code": "unauthorized"
  }
}
```

## Usage notes

- Poll at intervals of at least 3 seconds. A 504 from the synchronous image endpoint means the task may still be running: poll its error.id instead of submitting it again.