REST Countries vs Universities List

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesyes
HTTPSyesno
Card requirednono
Commercial useyesunclear
Data licenseMPL-2.0Unverified
Free tierUnlimitedFree — limits not published
Rate limitNone publishedUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

REST Countries vs Universities List: common questions

Which is more reliable, REST Countries or Universities List?

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

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

Can I call REST Countries and Universities List from the browser?

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

Are REST Countries and Universities List free for commercial use?

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