What are the licensing terms for the materials data?

Each data source has its own license:

• Materials Project: Creative Commons Attribution 4.0 (CC BY 4.0). You may use, share, and adapt the data with proper attribution.
• AFLOW: Available under a permissive academic license. See aflowlib.org for terms.
• JARVIS: Public domain, distributed by NIST. No restrictions on use.

MatCraft aggregates and presents this data but does not claim ownership. When using data from MatCraft in publications, please cite both MatCraft and the original data source(s). Citation information is provided on each material's detail page.