Captain Up is a platform that provides game mechanics and social tools for increasing the engagement and monetization of web and mobile applications. It provides methods for tracking user behavior - both individually and as a whole - and discovering how users interact with an application. Developers can use points, badges, levels, messages, leaderboards, and rewards to encourage users to perform desirable actions (e.g. liking, tweeting, commenting). The Captain Up API allows users to interact with the platform from any programming language or software that can send HTTP requests.