# Errors

When an error occurs, the xMoney Crypto API will return an error response in JSON format. The response will include a status code and an array of errors.

## Error response format

The error response will be in the following format:


```json
{
  "code": 400,
  "errors": [
    {
     "detail": "Explanation of the problem"
    }
  ]
}
```

The `errors` array will contain a list of errors that occurred. Each error will have the following fields:

| Field | Description |
|  --- | --- |
| `code` | The error code. |
| `detail` | A human-readable message describing the error. |


## Error codes

The following table lists the most common error codes that the xMoney API might return:

| Code | Message | Description |
|  --- | --- | --- |
| 400 | Bad Request | The request was invalid or could not be understood by the server. |
| 401 | Unauthorized | The request was not authenticated. |
| 404 | Not Found | The requested resource was not found. |


## Example error responses

Here are some example error responses:

### 401 invalid_api_key


```json
{
  "code": 401,
  "errors": [
    { 
      "detail": "invalid_api_key"
    }
  ]
}
```

### 404 Not Found


```json
{
  "code": 404,
  "errors": [
    { 
      "detail": "Resource not found"
    }
  ]
}
```