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Keen IO vs Newton

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

APIKeen IONEW—NewtonNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Keen IO vs Newton: common questions

Which is more reliable, Keen IO or Newton?

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

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

Can I call Keen IO and Newton from the browser?

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

Are Keen IO and Newton free for commercial use?

Keen IO has unclear commercial terms, and Newton 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.