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Newton vs SkyBiometry

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

APINewtonNEW—SkyBiometryREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesno
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

Newton vs SkyBiometry: common questions

Which is more reliable, Newton or SkyBiometry?

On our scheduled checks, SkyBiometry leads on measured uptime — Newton at —% versus SkyBiometry 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 Newton and SkyBiometry need an API key?

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

Can I call Newton and SkyBiometry from the browser?

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

Are Newton and SkyBiometry free for commercial use?

Newton has unclear commercial terms, and SkyBiometry 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.