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REST Countries vs The Guardian

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

APIREST CountriesHEALTHY—The GuardianNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseMPL-2.0Unverified
Free tierUnlimitedFree developer key — registration required
Rate limitNone published5000 calls/day (developer tier)
In directory since2026-05-022026-07-05
operationalpartialdownno data

REST Countries vs The Guardian: common questions

Which is more reliable, REST Countries or The Guardian?

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

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

Can I call REST Countries and The Guardian from the browser?

Yes — both REST Countries and The Guardian 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 The Guardian free for commercial use?

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