> ## 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.

# Adding the Incredibuild Self-Signed Certificate to Your API Client Tool

After you have imported the Incredibuild self-signed certificate, you need to add this certificate to your API Client tool, in order to send your API requests in a secured way over HTTPS protocol.

**Note**: The following instructions describes how to add Incredibuild self-signed certificate to Postman.

**To add Incredibuild self-signed certificate to Postman:**

1. On Postman API Client interface, click the **Settings** wrench button on the header toolbar and then select **Settings**.

2. Select the **Certificates** tab and then click **Add Certificate**.

3. On the **Client Certificates** > **Add Certificate** page:

   * **Host https\://**: Enter the IP address or hostname of your Coordinator. In this example, **win10-1** and enter the port number for API access that you previously [set in the **Coordinator Settings** dialog box](/windows/enabling-use-build-group-apis). In this example, the default port number is used – **31100**.

   * **PFX file**: Click **Select File**, and load **BuildService.pfx**.

     **Note**: By default, This certificate file is located in the Incredibuild installation directory.

   * **Passphrase**: Enter `Incredibuild`.

4. Click **Add** to add the Incredibuild certificate.

   **Note**: After adding the certificate, you cannot modify the IP address/hostname of the Coordinator, or the port number allocated for the API access. If you want to change these details, remove the current certificate, and add a new certificate.  

5. As you have added a self-signed certificate, you must disable SSL certificate verification. To do this, select the **General** tab, and switch the **SSL certificate verification** option to **OFF**:

Once you added the Incredibuild self-signed certificate to your API Client tool, the next step is to [configure this tool and start sending the APIs requests](/windows/config-api-tool-for-build-group).