Google Calendar can be useful to keep mobile track of personal and professional events. A third party SDK authored by Xu Jingxin is available on GitHub. Resources to develop with the Google Calendar SDK include to generate Auth Url, get token, and call APIs. Language information is not visible. Contact Xu for additional details email@example.com
Every once in awhile you see one API provider making use of APIs from another. This is the case with the eBay Developers Program, who have announced the new eBay API Release Calendar. The calendar is itself a mashup, having been developed using the Google Calendar API. The resulting app is simple but works well: it's color-coded to distinguish the significance of dates that correspond to each event.