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OpenCorporates vs OpenSanctions

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

APIOpenCorporatesNEW—OpenSanctionsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenCorporates vs OpenSanctions: common questions

Which is more reliable, OpenCorporates or OpenSanctions?

On our scheduled checks, OpenSanctions leads on measured uptime — OpenCorporates at —% versus OpenSanctions 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 OpenCorporates and OpenSanctions need an API key?

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

Can I call OpenCorporates and OpenSanctions from the browser?

Only OpenSanctions 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 OpenCorporates and OpenSanctions free for commercial use?

OpenCorporates has unclear commercial terms, and OpenSanctions 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.