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Ambee vs OpenCorporates

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

APIAmbeeDEAD0OpenCorporatesDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ambee vs OpenCorporates: common questions

Which is more reliable, Ambee or OpenCorporates?

Both are neck-and-neck — Ambee and OpenCorporates each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Do Ambee and OpenCorporates need an API key?

Both ask you to authenticate — Ambee uses an API key and OpenCorporates uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Ambee and OpenCorporates from the browser?

Neither sends browser-friendly CORS headers reliably, so call Ambee and OpenCorporates from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Ambee and OpenCorporates free for commercial use?

Ambee 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.