# Source: https://infisical.com/docs/self-hosting/ee.md

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

# Infisical Enterprise

> Find out how to activate Infisical Enterprise edition (EE) features.

While most features in Infisical are free to use, others are paid and require purchasing an enterprise license to use them.

This guide walks through how you can use these paid features on a self-hosted instance of Infisical.

<Steps>
  <Step title="Purchase a license">
    Start by either signing up for a free demo [here](https://infisical.com/schedule-demo) or contacting [sales@infisical.com](mailto:sales@infisical.com) to purchase a license.

    Once purchased, you will be issued a license key.
  </Step>

  <Step title="Activate the license">
    Set your license key as the value of the **LICENSE\_KEY** environment variable within your Infisical instance.

    <Tabs>
      <Tab title="Regular License">
        * Assign the issued license key to the `LICENSE_KEY` environment variable in your Infisical instance.

        * Your Infisical instance will need to communicate with the Infisical license server to validate the license key.
          If you want to limit outgoing connections only to the Infisical license server, you can use the following IP addresses: `13.248.249.247` and `35.71.190.59`

        <Note>
          Ensure that your firewall or network settings allow outbound connections to these IP addresses to avoid any issues with license validation.
        </Note>
      </Tab>

      <Tab title="Offline License">
        * Assign the issued offline license key to the `LICENSE_KEY` environment variable in your Infisical instance.

        * The system will automatically detect that it's an offline license based on the key format.

        <Note>
          While the LICENSE\_KEY\_OFFLINE environment variable continues to be supported for compatibility with existing configurations, we recommend transitioning to LICENSE\_KEY for all license types going forward.
        </Note>
      </Tab>
    </Tabs>

    Once your instance starts up, the license key will be validated and you'll be able to use the paid features.
    However, when the license expires, Infisical will continue to run, but EE features will be disabled until the license is renewed or a new one is purchased.
  </Step>
</Steps>