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

<AgentInstructions>

## Submitting Feedback

If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:

POST https://docs.ton.org/feedback

```json
{
  "path": "/ecosystem/api/toncenter/v2-errors",
  "feedback": "Description of the issue"
}
```

Only submit feedback when you have something specific and actionable to report.

</AgentInstructions>

# API error codes

All TON Center API v2 methods use a standard set of HTTP status codes to indicate the result of a request.

| Status code                 | Description                                                                                 |
| --------------------------- | ------------------------------------------------------------------------------------------- |
| `404 Not Found`             | The requested resource does not exist in storage.                                           |
| `405 Method Not Allowed`    | The endpoint was called with an unsupported HTTP method. Use GET or POST.                   |
| `409 Conflict`              | The resource was found but does not match the expected type for this method.                |
| `422 Unprocessable Content` | The request parameters failed validation (e.g., missing, malformed, or conflicting values). |
| `429 Too Many Requests`     | Too many requests. Back off and retry.                                                      |
| `500 Internal Server Error` | An internal error occurred. Retry or contact support if it persists.                        |
| `504 Gateway Timeout`       | The liteserver did not respond in time. Retry the request.                                  |
| `542 Server Error`          | A liteserver error or an unsupported TVM stack type was encountered.                        |

For method-specific error messages and troubleshooting details, refer to the documentation for the relevant endpoint.