> For the complete documentation index, see [llms.txt](https://docs.emaillabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaillabs.io/en/account/settings/api/limiting-access-to-specific-ip-addresses.md).

# Limiting Access to Specific IP Addresses

The ‘IP List’ section allows you to set restrictions on access to generated API keys, limiting them to specific IP addresses or entire IP mask. This provides an additional layer of security, helping to prevent unauthorized connection attempts.

<figure><img src="/files/z0MYXoNB4eN7HJYA2i8b" alt=""><figcaption></figcaption></figure>