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Mockaroo vs ReqRes

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

APIMockarooREACHABLE—ReqResNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Mockaroo vs ReqRes: common questions

Which is more reliable, Mockaroo or ReqRes?

On our scheduled checks, ReqRes leads on measured uptime — Mockaroo at —% versus ReqRes 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 Mockaroo and ReqRes need an API key?

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

Can I call Mockaroo and ReqRes from the browser?

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

Are Mockaroo and ReqRes free for commercial use?

Mockaroo has unclear commercial terms, and ReqRes 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.