The Clover Objective-C SDK by Clover still in alpha stage works as a reference to interact with the API. Resources include dependencies, modules, and examples that show buy button feature.
Revolut has expanded its Revolut for Business offering by extending banking services through an Open API. The API is designed to integrate with internal business systems and tools, as well as third party applications and workflows that businesses rely on to operate their businesses.
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.
