NOMAD Materials Data API

NOMAD Materials Data API

NOMAD is a research data platform for materials-science simulation and experiment data; its REST API (nomad-lab.eu/prod/v1/api/v1) searches and downloads public entries and processed archives without a key, while uploading needs a free account.

Coverage

Materials-science computational and experimental entries contributed by submitters. NOMAD's terms say: "At Submitter's choice, Content may either be made available to all users (open access data) or be made available only to specific users (restricted data)" and "Restricted data will automatically become open access data three years after their upload." History start and update frequency: Not stated.

Verdict

Keyless REST API for public NOMAD materials-science entries. Licensed CC-BY-4.0: NOMAD's terms say: "Content uploaded to NOMAD is made available subject to the rules of the Creative Commons Attribution 4.0 License." Reuse is allowed "provided proper attribution is given to the Submitter(s) and to the source of the Content." The terms add: "Unless specified otherwise, NOMAD metadata may be freely reused under the CC0 waiver." Rate limits: Not stated. Signal Lab links only.