Betfair PHP library by Daniele D'angeli. Helpful to access the API qualities of Betfair that comprise gambling, trading, and betting. To query the Betfair API, developers need an app key. Menu to work with PHP on the author's personal site includes an overall view of the project, ways to personalize the library, and tips to contribute on this work.
Google has long fielded complaints of sign-in requirements associated with Google Play Games. The Google+ requirement and multiple sign-ins required for multiple games has been a hotbed of frustration. Google announced the end of both requirements as part of a Google Play Games API model change.