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DummyJSON vs VATlayer

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

APIDummyJSONHEALTHY98VATlayerHEALTHY93
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d100%100%
P50 · ms32473
P95 · ms11132118
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 99.02% versus VATlayer 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, DummyJSON or VATlayer?

DummyJSON has the lower median latency in our checks — DummyJSON responds in 32 ms versus VATlayer at 473 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.