The Poloniex Node.js SDK by embicoin allows developers to integrate all of the Poloniex API's functions into their Node.js applications. This SDK supports trading.
Coinbase has made v2 of its API generally available. Built from the ground up, the new API includes new endpoint categories, versioning, metadata, and much more.
New APIs added in the past day include solutions for ecommerce and geolocation applications. Also, two PHP SDKs for ESPN were added, as well as some sample code for Getty Images.