X-Payments is a web-based payment application, designed for on-line merchants, who accept credit card payments and require compliance with the Payment Card Industry Data Security Standard (PCI DSS) v1.2 standard (X-Payments is PA-DSS certified). While processing credit card payments, X-Payments works as an intermediary between a store on the one side and payment gateways and 3D-Secure systems on the other side. Using X-Payments merchants can allow their customers to pay for the orders with credit cards; authorize payments without actual charge upon order placing and charge later (e.g.when the order is fulfilled); integrate with payment gateways, not supported by X-Payments out of the box using a custom made payment integration modules (supposed to be developed separately); change design and URL of the payment information entering form to go with the design and URL of the online store.