The Google Shopping Content Objective-C Library by Google can access API data to sell products on Google, list ads, drive traffic, and increase sales. Developers can interact with the JSON API, working with iOS 3+ and Mac OS X 10.5+. Available introduction and example applications.
Overstock has announced the integration of its online marketplace with ShapeShift to offer customers use of all major cryptocurrencies. Thanks to the integration with ShapeShift, Overstock customers can now pay for purchases with Bitcoin Cash, Dash, Ethereum, Litecoin, Monero, and many other assets.
Customer service-driven company Zappos, which first launched its developer program in June, is showing it's still focused on its Zappos API. The platform for platform shoes has been hard at work on a new version, according to Zappos' Will Young, though developers won't notice much difference quite yet.