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REST Countries vs Warnely

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

APIREST CountriesHEALTHY—WarnelyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseMPL-2.0Unverified
Free tierUnlimitedFree — limits not published
Rate limitNone published100 req/window · 99 remaining · resets 60
In directory since2026-05-022026-07-05
operationalpartialdownno data

REST Countries vs Warnely: common questions

Which is more reliable, REST Countries or Warnely?

On our scheduled checks, Warnely leads on measured uptime — REST Countries at —% versus Warnely 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 REST Countries and Warnely need an API key?

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

Can I call REST Countries and Warnely from the browser?

Yes — both REST Countries and Warnely 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 REST Countries and Warnely free for commercial use?

REST Countries allows commercial use on its free tier, and Warnely 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.