This document introduces MySpace SDKs which allow both on-site and off-site app development. The SDKs provide a high-level interface to the MySpace REST APIs to access social data from MySpace profiles. SDKs are available in multiple languages and provide a consistent interface. They contain core API libraries, dependent libraries, samples, and documentation. The document demonstrates how to build on-site apps using an iframe and off-site apps using OAuth delegated access and a OpenID/OAuth hybrid approach.