Direct Payment lets your customers who do not have a PayPal account pay using their credit cards without leaving your website. PayPal then processes the payment in the background.
Direct Payment has a single API operation: DoDirectPayment, which allows you to process a credit card transaction.
When customers choose to pay with a credit card, they enter their card number and other information on your website. After they confirm their order and click Pay, you complete the order in the background by invoking the DoDirectPayment API operation. Customers never leave your site. Although PayPal processes the order, customers aren’t aware of PayPal’s involvement; PayPal will not even appear on the customer’s credit card statement for the transaction.
