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CompanyData.com vs Finnhub

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

APICompanyData.comNEW—FinnhubREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CompanyData.com vs Finnhub: common questions

Which is more reliable, CompanyData.com or Finnhub?

On our scheduled checks, Finnhub leads on measured uptime — CompanyData.com at —% versus Finnhub 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 CompanyData.com and Finnhub need an API key?

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

Can I call CompanyData.com and Finnhub from the browser?

Only Finnhub is browser-friendly — it returns CORS headers over HTTPS. CompanyData.com needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CompanyData.com and Finnhub free for commercial use?

CompanyData.com has unclear commercial terms, and Finnhub 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.