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DummyJSON vs Sheetsu

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

APIDummyJSONHEALTHY100SheetsuHEALTHY94
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms91364
P95 · ms19291259
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no keyFree tier — key may be required
Rate limit100 req/window · 99 remaining · resets 178351024390 req/window · 89 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

DummyJSON vs Sheetsu: common questions

Which is more reliable, DummyJSON or Sheetsu?

Both are neck-and-neck — DummyJSON and Sheetsu 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 Sheetsu?

DummyJSON has the lower median latency in our checks — DummyJSON responds in 91 ms versus Sheetsu at 364 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 Sheetsu need an API key?

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

Can I call DummyJSON and Sheetsu from the browser?

Yes — both DummyJSON and Sheetsu send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are DummyJSON and Sheetsu free for commercial use?

DummyJSON has unclear commercial terms, and Sheetsu 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.