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

# HTTP status code summary

Fintoc uses conventional HTTP response codes to indicate whether a request succeeded or failed. Codes in the `2xx` range indicate success. Codes in the `4xx` range indicate a problem with the request. Codes in the `5xx` range indicate an error on Fintoc's side. The following table summarizes each status code:

| Code                        | Meaning                                                                                                |
| :-------------------------- | :----------------------------------------------------------------------------------------------------- |
| `200 OK`                    | The request succeeded.                                                                                 |
| `400 Bad Request`           | The request contains invalid information. Correct the invalid information before retrying the request. |
| `401 Unauthorized`          | Your API key is invalid or the request does not include the API key as expected.                       |
| `402 Payment Required`      | You must pay to continue using the service.                                                            |
| `403 Forbidden`             | The request is valid, but you do not have permission to make the request.                              |
| `404 Not Found`             | Fintoc could not find the requested resource. Check the requested URL.                                 |
| `429 Too Many Requests`     | You exceeded the limit of five requests per second.                                                    |
| `500 Internal Server Error` | Fintoc encountered an internal server error.                                                           |
| `503 Service Unavailable`   | The financial institution may be unavailable.                                                          |