Strava is a social fitness service that allows users to share, compare and compete with other users' personal fitness data via mobile and online apps. Focusing on cyclists and runners, Strava lets users track their rides and runs via mobile apps or GPS device to analyze their performance. The Strava API provides several methods through which users can send and receive Strava data from a mobile device. These methods lets users access data on other athletes, efforts, rides and uploads. The API uses RESTful calls and responses are formatted in JSON.