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JSONPlaceholder vs Nationalize.io

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

APIJSONPlaceholderNEW—Nationalize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedKeyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free key
Rate limit1000 req/window · 999 remaining · resets 1783509378Keyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headers
In directory since2026-07-052026-07-05
operationalpartialdownno data

JSONPlaceholder vs Nationalize.io: common questions

Which is more reliable, JSONPlaceholder or Nationalize.io?

On our scheduled checks, Nationalize.io leads on measured uptime — JSONPlaceholder at —% versus Nationalize.io 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 Nationalize.io need an API key?

Neither needs a paid key — JSONPlaceholder is callable with no signup, and Nationalize.io is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call JSONPlaceholder and Nationalize.io from the browser?

Yes — both JSONPlaceholder and Nationalize.io 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 JSONPlaceholder and Nationalize.io free for commercial use?

JSONPlaceholder has unclear commercial terms, and Nationalize.io 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.