Dwolla is an extremely innovative Payment API and the site allows you to transfer money with one of the least payment charges. We have covered Dwolla before here. Here is an interview with Michael Schonfeld, Developer Evangelist of Dwolla API.
Dwolla, highly innovative payment network, celebrates its second anniversary by hosting a hackathon in its birthplace: Des Moines, Iowa. To complement the unusual choice of geography for a hackathon, Dwolla chose a name to fit the occasion: Old MacDonald Hackathon. Dwolla and co-host, Silicon Prairie News, aim for 50 developers to enjoy the scene and conjure up some disruptive applications utilizing Dwolla's APIs.
Visa has opened up its global payments network to developers releasing a set of new RESTful APIs and developer website. Developers will have access to different Visa platform capabilities via RESTful APIs including payments, analytics, alerts, ATM locations, geographical-based data, and more.