The MasterCard Masterpass Merchant Integration API is a checkout service API that allows simple and secure checkout from Masterpass digital wallets. Using this API enables merchants to get payment information from the consumer’s digital wallet and be able to process their order on a website, app or in store. Details on setup can be found in the documentation- once setup and integrated, merchants can implement all the checkout options that are useful for their front end applications. The Merchant Integration API is part of MasterCard's Masterpass APIs.
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