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REST Countries vs Voidly

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

APIREST CountriesHEALTHY—VoidlyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesyes
Data licenseMPL-2.0CC BY 4.0
Free tierUnlimitedFree (keyless data endpoints; Hydra ML endpoints need a key)
Rate limitNone publishedUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

REST Countries vs Voidly: common questions

Which is more reliable, REST Countries or Voidly?

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

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

Can I call REST Countries and Voidly from the browser?

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

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