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

# Response Code

> Standard HTTP status codes and specific business error codes.

The API uses standard HTTP status codes to indicate the success or failure of an API request.

<Note>
  **Important**: While the HTTP status code indicates the transport status, the specific business logic result is defined by the `code` field in the response body.

  Please always refer to the **`msg`** field in the response JSON for the specific error message and details.
</Note>

## HTTP Status Codes

These are the general HTTP status codes used by the API to indicate the connection or request status.

| HTTP Code | Meaning               | Description                                                                                                    |
| :-------- | :-------------------- | :------------------------------------------------------------------------------------------------------------- |
| **200**   | OK                    | Request successful (includes synchronous results or successful submission of asynchronous tasks).              |
| **400**   | Bad Request           | Invalid parameters (e.g., missing required fields, JSON format error). Corresponds to business codes `100xxx`. |
| **401**   | Unauthorized          | Authentication failed (missing, invalid, or revoked API Key). Corresponds to `401xxx`.                         |
| **402**   | Payment Required      | Insufficient quota, balance exhausted, or plan expired. Corresponds to `402xxx`.                               |
| **403**   | Forbidden             | Access denied (e.g., account frozen, banned App ID, or accessing unauthorized resources).                      |
| **404**   | Not Found             | Resource not found (invalid API path). Corresponds to `404xxx`.                                                |
| **413**   | Payload Too Large     | Uploaded file size exceeds the system limit.                                                                   |
| **429**   | Too Many Requests     | Rate limit exceeded (QPS limit). Corresponds to `429xxx`.                                                      |
| **500**   | Internal Server Error | System internal error. Corresponds to `5xxxx`.                                                                 |

***

## Business Error Codes

The `code` field in the JSON response represents the specific business error.

| Code   | Message                                                                  |
| :----- | :----------------------------------------------------------------------- |
| 0      | Success                                                                  |
| 100001 | Request parameter binding failed                                         |
| 100002 | Parameter validation failed (e.g., model not found, size limit exceeded) |
| 130005 | Request too frequent                                                     |
| 400001 | Invalid path format                                                      |
| 400002 | Invalid version                                                          |
| 400003 | Invalid module name                                                      |
| 400005 | Invalid request parameters (missing auth info or body)                   |
| 401001 | Authorization information missing                                        |
| 401002 | Unauthorized (Invalid API Key/Token)                                     |
| 402000 | Quota freeze failed                                                      |
| 500001 | Service unavailable                                                      |
| 500002 | Database error                                                           |
| 500003 | Proxy error                                                              |
| 500004 | Task creation failed                                                     |
| 530002 | Server is busy                                                           |
| 530003 | Internal server error                                                    |