This Paypal SDK is a Payflow integration for .Net. Payflow is a secure, open payment gateway service that works with PayPal Payments. It allows merchants to choose PayPal hosting at checkout to manage security for sales and authorizations. Merchants can host their own checkout pages and send transactions to Payflow via API. PayPal offers ecommerce and online payment solutions for millions of customers globally.
The W3C Web Payments Working Group has published working drafts of Web Payments HTTP Specifications that include the Web Payments HTTP API 1.0 and Web Payments HTTP Messages 1.0. The two specifications are designed to work together to enable payment requests outside of a browser context.
Twenty One APIs have been added to the ProgrammableWeb directory in categories including Games, Advertising, Financial and Spam. Highlights today include APIs for locating cell towers, integrating chat for customer service, and querying financial information of businesses and individuals.