Gladia vs REST Countries
Same instrument, two spec sheets — measured, not claimed.
Gladia vs REST Countries: common questions
Which is more reliable, Gladia or REST Countries?
Both are neck-and-neck — Gladia and REST Countries each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Gladia or REST Countries?
REST Countries has the lower median latency in our checks — Gladia responds in 1203 ms versus REST Countries at 328 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Gladia and REST Countries need an API key?
REST Countries needs no key, while Gladia requires a free API key. If you want to start calling without signup, reach for REST Countries first.
Can I call Gladia and REST Countries from the browser?
Only Gladia is browser-friendly — it returns CORS headers over HTTPS. REST Countries needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Gladia and REST Countries free for commercial use?
Gladia has unclear commercial terms, and REST Countries 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.