This webinar introduces the main concepts of the of the XAPI and discusses how it has been used in a real world scenario of the Mobler Cards App. The presentation was held as part of the SWITCH Eduhub Webinar series on 25 July 2013. The recorded Webinar is also available on youtube: http://www.youtube.com/watch?v=27GYG2bxdAo&feature=share&list=UUNyeKgp4RqXLhV7us28S8Mw