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IPASIS vs OpenCorporates

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

APIIPASISNEW—OpenCorporatesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
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

IPASIS vs OpenCorporates: common questions

Which is more reliable, IPASIS or OpenCorporates?

On our scheduled checks, OpenCorporates leads on measured uptime — IPASIS 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 IPASIS and OpenCorporates need an API key?

Both ask you to authenticate — IPASIS 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 IPASIS and OpenCorporates from the browser?

Neither sends browser-friendly CORS headers reliably, so call IPASIS 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 IPASIS and OpenCorporates free for commercial use?

IPASIS 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.