> ## 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 8013

## ERR\_NGROK\_8013

You must add a credit or debit card before you can use TCP endpoints on a free account. We require a valid card as a way to combat abuse and keep the internet a safe place. This card will NOT be charged.
Add a card to your account here: [https://dashboard.ngrok.com/settings#id-verification](https://dashboard.ngrok.com/settings#id-verification).

## 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_8013)