Paidpiper, mobile payments processing provider, offers its unique mobile payments platform via the Paidpiper API. Instead of relying on network security to ensure reliability and compliance, Paidpiper's unique approach secures the smartphone making the transaction to prevent malfeasance and fraud. By securing the smartphone itself, no need for additional POS hardware becomes necessary.
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.