REST Countries vs Sofiaplan
Same instrument, two spec sheets — measured, not claimed.
REST Countries vs Sofiaplan: common questions
Which is more reliable, REST Countries or Sofiaplan?
Both are neck-and-neck — REST Countries and Sofiaplan 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 Sofiaplan?
REST Countries has the lower median latency in our checks — REST Countries responds in 328 ms versus Sofiaplan at 1666 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 Sofiaplan need an API key?
Neither needs a paid key — REST Countries is callable with no signup, and Sofiaplan is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call REST Countries and Sofiaplan from the browser?
Neither sends browser-friendly CORS headers reliably, so call REST Countries and Sofiaplan from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are REST Countries and Sofiaplan free for commercial use?
REST Countries allows commercial use on its free tier, and Sofiaplan 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.