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CountryStateCity vs Country.is

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

APICountryStateCityUNMONITORED—Country.isNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree, no API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CountryStateCity vs Country.is: common questions

Which is more reliable, CountryStateCity or Country.is?

Only Country.is is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do CountryStateCity and Country.is need an API key?

Country.is needs no key, while CountryStateCity requires a free API key. If you want to start calling without signup, reach for Country.is first.

Can I call CountryStateCity and Country.is from the browser?

Yes — both CountryStateCity and Country.is 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 CountryStateCity and Country.is free for commercial use?

CountryStateCity has unclear commercial terms, and Country.is 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.