restful-api.dev vs UUID Generator

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

Uptime · 30d
Uptime · 90d16.7%100%
Uptime · 30d16.7%100%
P50 · ms240220
P95 · ms422837
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished60 req/window · 59 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

restful-api.dev vs UUID Generator: common questions

Which is more reliable, restful-api.dev or UUID Generator?

On our scheduled checks, UUID Generator leads on measured uptime — restful-api.dev at 16.7% versus UUID Generator 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, restful-api.dev or UUID Generator?

UUID Generator has the lower median latency in our checks — restful-api.dev responds in 240 ms versus UUID Generator at 220 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 restful-api.dev and UUID Generator need an API key?

Neither needs a paid key — restful-api.dev is callable with no signup, and UUID Generator is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call restful-api.dev and UUID Generator from the browser?

Yes — both restful-api.dev and UUID Generator send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are restful-api.dev and UUID Generator free for commercial use?

restful-api.dev has unclear commercial terms, and UUID Generator 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.