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UUID Generator vs Zube

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

APIUUID GeneratorNEW—ZubeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limit60 req/window · 59 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

UUID Generator vs Zube: common questions

Which is more reliable, UUID Generator or Zube?

On our scheduled checks, Zube leads on measured uptime — UUID Generator at —% versus Zube 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 UUID Generator and Zube need an API key?

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

Can I call UUID Generator and Zube from the browser?

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

Are UUID Generator and Zube free for commercial use?

UUID Generator has unclear commercial terms, and Zube 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.