PayPal Payflow Pro API

The Payflow Pro API enables users to develop Web and desktop applications that create, schedule, and run standard (pre-defined) and custom Payflow services reports. Payflow Pro is a flexible payment gateway solution that can be used with any internet merchant account to process credit card transactions online. With the API, developers can choose add-on services like recurring billing and fraud protection, and also set up standard and custom reports. The API uses RESTful and SOAP protocol and responses are formatted in XML, JSON or NVP.