To integrate an iTransact Gateway to your account, you will need your API Username and API Key. 

Follow these steps to find your API Username and API Key:

1. Login to your iTransact gateway and select the "Merchant Settings" button.

2. After selecting "Merchant Settings," select "Integrations" at the left panel.

3. Here you will see your iTransact API Access. Your account will use the API Username and API Key.

Once the iTransact credentials have been recorded, follow these steps to add the iTransact gateway to your account:

1. Login to your account.

2. Select the "Integrations" drop-down menu and click on "Merchant Gateway."

3. Navigate to and select the "Add New" button.

4. Select "iTransact" under the Gateway Type, and complete all the fields with the information from your iTransact account.

5. When finished, press "Add."

You have successfully integrated an iTransact gateway.