The Authorize.net Ruby SDK by Authorize.net allows communication with the API to implement authorization features into applications, specifically beneficial to verify payments with credit cards. Three steps show how install the SDK, create a Ruby file for a new transaction, and run the program.
PayPal has officially released PayPal X, its next generation platform that includes a variety of APIs and other resources for developers. Primarily aimed at allowing developers to embed payment processing in a wider array of applications and environments, this is a major expansion of PayPal's APIs.
Microsoft has announced that the Microsoft Payment Request API in Microsoft Edge is available in preview. The Microsoft Payment Request API can be used to simplify checkout and payments on the web (via Microsoft Edge browser) for Windows 10 PC and mobile users. The API connects to Microsoft Wallet.