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DummyJSON vs FastApi Simple Calculator

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

APIDummyJSONNEW—FastApi Simple CalculatorNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no keyFree — limits not published
Rate limit100 req/window · 99 remaining · resets 1783510243Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

DummyJSON vs FastApi Simple Calculator: common questions

Which is more reliable, DummyJSON or FastApi Simple Calculator?

On our scheduled checks, FastApi Simple Calculator leads on measured uptime — DummyJSON at —% versus FastApi Simple Calculator 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 FastApi Simple Calculator need an API key?

Neither needs a paid key — DummyJSON is callable with no signup, and FastApi Simple Calculator is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call DummyJSON and FastApi Simple Calculator from the browser?

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

Are DummyJSON and FastApi Simple Calculator free for commercial use?

DummyJSON has unclear commercial terms, and FastApi Simple Calculator 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.