The PayPal Adaptive Payments Ruby SDK by PayPal allows developers to integrate the PayPal Adaptive Payments API into their Ruby projects and applications. Example code and a sample app are provided in the documentation.
Moving money online is commonplace these days, and the simpler and faster the process can be, the more appealing it is. Ripple provides another option in the world of online payment solutions. It's an open source, almost free to use payment network that provides a simple and hassle-free way for anyone in the world to send money to anyone else. The Ripple API allows developers to use this functionality and integrate the payment system into other projects.
Square continued its move beyond payments into ecommerce in general by announcing its Orders API. The Orders API allows developers to build solutions that allow customers to place orders online, in-person, and in-app. Orders can be sent to other Square products or centralized POS systems.