Square has launched the Register API for Android only a couple of months after releasing the API for iOS. The API allows developers to build end to end point-of-sale solutions that utilize Square's entire payment platform, or that integrate with third party infrastructure and applications.
2Checkout, a worldwide leader in payment services, has released a new Payment API. The API allows online merchants to integrate 2Checkout’s payment processing engine directly into third party websites. Because the API is directly integrated with third party websites, merchants can maintain a customized user experience that best suits business needs.