REST Countries vs Voidly

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms3281238
P95 · ms11893894
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useyesyes
Data licenseMPL-2.0CC BY 4.0
Free tierUnlimitedFree (keyless data endpoints; Hydra ML endpoints need a key)
Rate limitNone publishedUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

REST Countries vs Voidly: common questions

Which is more reliable, REST Countries or Voidly?

Both are neck-and-neck — REST Countries and Voidly 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, REST Countries or Voidly?

REST Countries has the lower median latency in our checks — REST Countries responds in 328 ms versus Voidly at 1238 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 REST Countries and Voidly need an API key?

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

Can I call REST Countries and Voidly from the browser?

Only Voidly 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 REST Countries and Voidly free for commercial use?

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