NMI Gateway

Network Merchants, Inc. (NMI) provides a feature rich, e-commerce payment gateway that supports both online and card-present (retail) merchants. ... A Virtual Terminal that allows merchants to process transactions anywhere in the world from web-enabled devices.

Google Pay - https://secure.networkmerchants.com/gw/merchants/resources/integration/integration_portal.php#cjs_googlePay 

Apple Pay - https://secure.networkmerchants.com/gw/merchants/resources/integration/integration_portal.php#cjs_applePay 

APIs - https://secure.networkmerchants.com/gw/merchants/resources/integration/integration_portal.php 

Compatible Shopping Carts - https://secure.networkmerchants.com/gw/merchants/resources/integration/integration_portal.php#carts_list