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DummyJSON vs VATlayer

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

APIDummyJSONNEW—VATlayerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no keyFree tier — key may be required
Rate limit100 req/window · 99 remaining · resets 1783510243Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

DummyJSON vs VATlayer: common questions

Which is more reliable, DummyJSON or VATlayer?

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

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

Can I call DummyJSON and VATlayer from the browser?

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

Are DummyJSON and VATlayer free for commercial use?

DummyJSON has unclear commercial terms, and VATlayer 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.