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DummyJSON vs VATlayer

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

APIDummyJSONHEALTHY100VATlayerHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms91286
P95 · ms19292118
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?

Both are neck-and-neck — DummyJSON and VATlayer each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, DummyJSON or VATlayer?

DummyJSON has the lower median latency in our checks — DummyJSON responds in 91 ms versus VATlayer at 286 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 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.