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

# Error 3813

## ERR\_NGROK\_3813

The gateway did not select any models compatible with the `APIFORMAT` API format. Update the gateway configuration to include providers/models that support the `APIFORMAT` format

## Further help

If you're having trouble resolving this error, please reach out to [support@ngrok.com](mailto:support@ngrok.com?subject=Help%20with%20ERR_NGROK_3813)