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REST Countries vs Urlbox API

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

APIREST CountriesHEALTHY—Urlbox APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseMPL-2.0Unverified
Free tierUnlimitedFree tier — API key required
Rate limitNone publishedUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

REST Countries vs Urlbox API: common questions

Which is more reliable, REST Countries or Urlbox API?

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

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

Can I call REST Countries and Urlbox API from the browser?

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

Are REST Countries and Urlbox API free for commercial use?

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