Science & Math — entry 012 of 28
Materials Platform for Data Science
MPDS exposes the PAULING FILE experimental inorganic-materials database — crystal structures, physical properties, and phase diagrams curated from tens of thousands of scientific papers — through a single GET endpoint returning JSON or CIF. A curated open-data subset (select compound classes, machine-learning- and ab-initio-derived properties) is free with just an account login, while full-database API access is a paid subscription starting at €9,500/year for academic use.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSON, CIFResponses can be requested as JSON or CIF.
GreatAPIs Score
Score81
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/materials-platform-for-data-science/"><img src="https://greatapis.com/badge/materials-platform-for-data-science.svg" alt="Scored 81 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.