Toast early Monday announced it will use processing services from Adyen NV in its home U.S. market. Most of these are restaurants and most are located in the U.S. with back-end processing by Worldpay and JPMorgan Payments. “Toast is adding Adyen to our U.S. payments ecosystem. In February, Adyen introduced Personalize, a checkout service that allows merchants to customize payment options for each shopper. Earlier this month, Toast reported its gross payment volume totaled $60.7 billion for the quarter ended June 30, up 22% year-over-year, helping to drive revenue up almost 28%, to $290 million.