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OPTIMADE

Exchange Schema Materials openly published

The Open Databases Integration for Materials Design (OPTIMADE) consortium aims to make materials databases interoperable by developing a specification for a common REST API....

OPTIMADE Consortium, from their own opening paragraph

What I make of it

A single query model across a dozen independent materials databases. Excellent case study.

Other materials data models

EMMO (Elementary Multiperspective Material Ontology) Ontology / Vocabulary NOMAD metadata schema Metadata Model
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Model Details
Steward OPTIMADE Consortium
Layer Exchange Schema
Domain Materials
Status live
Access Openly published
Go to the steward →
How I know this

Compiled for the API Evangelist data model catalog, then confirmed against the steward's own site.

Confirmed 2026-08-11

Evidence: name evidence 1/1. Found something wrong? Tell me — corrections are cheap and I would rather be right.

Modernity Profile
70.4 Modernizing
Access Open
Assessed 81.0% of the rubric

A separate measure from the Kin Score, which rates API providers. This rates how current a standard is in how it is expressed, published and paid for — not how good it is. EDIFACT and X12 score low here and move an enormous share of world trade.

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