> For the complete documentation index, see [llms.txt](https://docs.unimarket.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.unimarket.com/api-reference/getting-started/errors.md).

# Errors

The Nova Public API uses standard HTTP status codes to indicate success or failure.

## Status codes

| Code                        | Meaning                                 |
| --------------------------- | --------------------------------------- |
| `200 OK`                    | Request succeeded                       |
| `400 Bad Request`           | Invalid request parameters              |
| `401 Unauthorized`          | Missing or invalid authentication token |
| `403 Forbidden`             | Token valid but access denied           |
| `404 Not Found`             | Resource does not exist                 |
| `500 Internal Server Error` | Unexpected server error                 |

## Error response shape

Error responses return a JSON body with details about what went wrong:

```json
{
  "status": 400,
  "error": "Bad Request",
  "message": "Invalid value for parameter 'size'"
}
```

| Field     | Type    | Description                             |
| --------- | ------- | --------------------------------------- |
| `status`  | integer | HTTP status code                        |
| `error`   | string  | Short error label                       |
| `message` | string  | Human-readable description of the error |


---

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