 The Materials Project is a core program of the Materials Genome Initiative which utilizes high throughput computing to discover the properties of all known inorganic materials. It provides an open data set accessible via multiple channels for interactive exploration and data mining. Additionally, it creates open source platforms for developing robust, sophisticated materials analyses. These platforms allow users to rapidly prototype new materials in silico and provide researchers with cost-effective, data-driven materials design. This article was authored by Anubhav Jain, Shaiyuping Aung, Jeffrey Hottier, and others.