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Micro User Service vs UUID Generator API

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

APIMicro User ServiceDEAD0UUID Generator APIHEALTHY91
Uptime · 30d
Uptime · 90d18.6%100%
Uptime · 30d0.0%100%
P50 · ms231737
P95 · ms8271570
AuthapiKeynone
CORSnono
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

Micro User Service vs UUID Generator API: common questions

Which is more reliable, Micro User Service or UUID Generator API?

On our scheduled checks, UUID Generator API leads on measured uptime — Micro User Service at 18.6% versus UUID Generator API at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Micro User Service or UUID Generator API?

Micro User Service has the lower median latency in our checks — Micro User Service responds in 231 ms versus UUID Generator API at 737 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Micro User Service and UUID Generator API need an API key?

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

Can I call Micro User Service and UUID Generator API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Micro User Service and UUID Generator API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Micro User Service and UUID Generator API free for commercial use?

Micro User Service has unclear commercial terms, and UUID Generator API 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.