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OpenCorporates vs WHO Global Health Observatory API

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

APIOpenCorporatesNEW—WHO Global Health Observatory APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnono
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 WHO Global Health Observatory API: common questions

Which is more reliable, OpenCorporates or WHO Global Health Observatory API?

On our scheduled checks, WHO Global Health Observatory API leads on measured uptime — OpenCorporates at —% versus WHO Global Health Observatory API 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 WHO Global Health Observatory API need an API key?

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

Can I call OpenCorporates and WHO Global Health Observatory API from the browser?

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

Are OpenCorporates and WHO Global Health Observatory API free for commercial use?

OpenCorporates has unclear commercial terms, and WHO Global Health Observatory API 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.