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JSONPlaceholder vs Numverify

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

APIJSONPlaceholderNEW—NumverifyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limit1000 req/window · 999 remaining · resets 1783509378Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

JSONPlaceholder vs Numverify: common questions

Which is more reliable, JSONPlaceholder or Numverify?

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

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

Can I call JSONPlaceholder and Numverify from the browser?

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

Are JSONPlaceholder and Numverify free for commercial use?

JSONPlaceholder has unclear commercial terms, and Numverify 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.