shipapis
StarSubmit an APISubmit API

OpenCorporates vs PredictHQ

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

APIOpenCorporatesDEAD0PredictHQDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
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

OpenCorporates vs PredictHQ: common questions

Which is more reliable, OpenCorporates or PredictHQ?

Both are neck-and-neck — OpenCorporates and PredictHQ 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 OpenCorporates and PredictHQ need an API key?

Both ask you to authenticate — OpenCorporates uses an API key and PredictHQ 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 OpenCorporates and PredictHQ from the browser?

Only PredictHQ 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 PredictHQ free for commercial use?

OpenCorporates has unclear commercial terms, and PredictHQ 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.