> ## 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.

# Errors

Fintoc uses [HTTP status codes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status) to indicate whether a request succeeds or fails. Codes in the `2xx` range indicate success. Codes in the `4xx` range indicate a problem with your request, such as a missing parameter or invalid bank credentials. Codes in the `5xx` range indicate an error from Fintoc or the financial institution.