COD API

REST API for accessing the Crystallography Open Database, an open-access collection of crystal structures. Provides search capabilities by chemical formula, elements, text, and crystallographic parameters, as well as direct access to CIF files.

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Base URL: http://www.crystallography.net/
Auth: unknown
Endpoints: 9
Reachable: yes
CORS: unknown
Last checked: 2026-03-14 16:07:57.818684

Links

Homepage: https://www.crystallography.net
API Base: http://www.crystallography.net/

100.0%

Uptime (7d)

379ms

Avg latency (7d)

20

Probes (7d)

Latency (7d)

Success Rate (7d)

Topics

CHEMISTRY

Endpoints

Method Path Summary Auth Last Status Latency
GET /result Search crystal structures — 200 253ms
GET /result.php Legacy search endpoint — 200 251ms
GET /{codId}.cif Get CIF file by COD ID — 200 172ms
GET /{codId}.hkl Get structure factors by COD ID — — —
GET /{codId}.html Get HTML page by COD ID — 404 74ms
GET /{codId}.rdf Get RDF data by COD ID — 200 804ms
GET /{id}.cif Get CIF file by COD ID — 200 234ms
GET /{id}.hkl Get structure factor data by COD ID — 404 247ms
GET /{id}.html Get HTML page by COD ID — 200 666ms