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.
FantasyData.com, NFL statistical data provider, offers the FantasyData NFL API. The API gives developers access to NFL data (e.g. team stats, live scores, season information, box scores, and more). The API targets web and mobile app owners who develop apps for the fantasy football market. Many of the most popular fantasy football apps have already integrated with FantasyData's APIs.