Germany-based "business social network" XING announced this week that the XING API is now officially out of beta, and invited external developers to register for access at dev.xing.com. Since March of this year, the XING API has been available as a "closed beta," and XING reported that over three thousand developers tried out the API during that period, "creating almost 150 active apps and producing around 17 million API requests per day."
For music fans who enjoy listening to playlists on their laptops or desktops, Tomahawk is a music player with a few extra bells and whistles that may be of some interest. It's an open-source, cross-platform music player, which means it enables a user to play music stored on their own hard drives as well as from a variety of other music sources like Spotify, SoundCloud, YouTube and more. The Toma.hk API makes this functionality available to developers or users to add songs to websites.