The educational game industry struggles from a lack of standardization around collecting, analyzing and managing student learning data, which is potentially jeopardizing millions of dollars of investment in educational games. Investors, administrators, and educators require data to support quantitative and qualitative learning measurement in Game-Based Learning products. This paper will investigate current and past approaches to collecting data for use in assessments and research and will explore the new GBLxAPI.org open-source project funded in part by the National Science Foundation. This community-driven effort seeks to standardize learning data capture and provide a tool for measuring learning across multiple game products.