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OpenCorporates vs WhatIsMyIP API

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

APIOpenCorporatesNEW—WhatIsMyIP APINEW—
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 WhatIsMyIP API: common questions

Which is more reliable, OpenCorporates or WhatIsMyIP API?

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

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

Can I call OpenCorporates and WhatIsMyIP API from the browser?

Only WhatIsMyIP 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 OpenCorporates and WhatIsMyIP API free for commercial use?

OpenCorporates has unclear commercial terms, and WhatIsMyIP 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.