Hello, when choosing a system for accepting electronic payments, it is important to study all connection options. These can be ready-made payment CMS modules for online stores, which allow you to quickly integrate the service into the site. API connection, when IT specialists use ready-made code to implement a payment acceptance system on the site. At the same time, there is a widget option - when a payment form pops up for entering details without the user going to the page of the payment system. But I would recommend you a simpler and safer option, which is to conclude an
affiliate program with a representative of the payment system. In this case, you can be sure of the simplicity and security of payments for your clients.