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

# Enabling the Use of Build Group APIs in the Coordinator

1. On the Coordinator machine, open the **Coordinator Settings** dialog box.

2. Go to **Coordinator** > **API Access**.

<img src="https://mintcdn.com/incredibuild-docs-migrated/2n2J9Gj3XSrP9ZPi/images/images/windows/1456504908/1456767016.png?fit=max&auto=format&n=2n2J9Gj3XSrP9ZPi&q=85&s=08ba8fd8da32e27fbcfc039d28d00772" alt="" width="734" height="532" data-path="images/images/windows/1456504908/1456767016.png" />

3. Select **Coordinator API Access**.

4. In the **API Port** field, enter a port number for the API communication, or use the default port number – **31100**.

5. Select **Require API key for access**.

6. Click the **Generate** button to generate an API key. This is displayed in the **Generate** field. Copy and save this key, to use in the HTTPS header of your API requests.

7. (Optional) Select **Allow Agent self registration to Build Group** if you want to [enable the assignment of an Agent to a Build Group](/windows/assigning-agents-to-build-groups) during its installation or from its host machine.

8. Click **OK**.

Once you enabled the API access in the Coordinator, and generated an API key, the next step is to [import the Incredibuild self-signed certificate to the Coordinator machine](/windows/importing-self-signed-certificate).