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GLEIF LEI API vs OpenCorporates

Same instrument, two spec sheets — measured, not claimed.

APIGLEIF LEI APINEW—OpenCorporatesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GLEIF LEI API vs OpenCorporates: common questions

Which is more reliable, GLEIF LEI API or OpenCorporates?

On our scheduled checks, OpenCorporates leads on measured uptime — GLEIF LEI API at —% versus OpenCorporates at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do GLEIF LEI API and OpenCorporates need an API key?

GLEIF LEI API needs no key, while OpenCorporates requires a free API key. If you want to start calling without signup, reach for GLEIF LEI API first.

Can I call GLEIF LEI API and OpenCorporates from the browser?

Only GLEIF LEI API is browser-friendly — it returns CORS headers over HTTPS. OpenCorporates needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are GLEIF LEI API and OpenCorporates free for commercial use?

GLEIF LEI API has unclear commercial terms, and OpenCorporates has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.