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Postman Echo vs RandomUser

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

APIPostman EchoNEW—RandomUserNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (generated data; sample photos governed by UI Faces terms)
Free tierFree — limits not publishedFree — no key or signup
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Postman Echo vs RandomUser: common questions

Which is more reliable, Postman Echo or RandomUser?

On our scheduled checks, RandomUser leads on measured uptime — Postman Echo at —% versus RandomUser 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 Postman Echo and RandomUser need an API key?

Neither needs a paid key — Postman Echo is callable with no signup, and RandomUser is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Postman Echo and RandomUser from the browser?

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

Are Postman Echo and RandomUser free for commercial use?

Postman Echo has unclear commercial terms, and RandomUser 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.