The Dwolla Ruby SDK by Dwolla allows to communicate with the API to implement real time payment features into web services. Resources include installation with gem and test with bundle. Examples show how to authenticate, fetch user information, grab user's contacts, list user's funding sources, send & receive money, and obtain user's balance.
While some folks tend to think about APIs are being little bits of arcane code that only developers care about it, the truth of the matter is that billions, possibly even trillions, of dollars are at stake in what will soon be a series of API wars. In no place is this more important than in mobile banking, where companies ranging from Google, the PayPal unit of eBay and lesser known entities such as MineralTree are all vying to usurp the role of traditional financial institutions.
Pusher has established itself as a leading service for delivering WebSocket messages to connected clients via its simple, RESTful Pusher API. This especially suits application developers working with languages and platforms that struggle to maintain and scale persistent connections. We remove the need to roll a custom solution and work with complex and unfamiliar technologies, and ensure the benefits of a hosted service can be achieved. We've recently added support for WebHooks, which provide a different sort of real-time solution.
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.