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?
On our scheduled checks, Sofiaplan leads on measured uptime — REST Countries at —% versus Sofiaplan 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 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?
Only REST Countries is browser-friendly — it returns CORS headers over HTTPS. Sofiaplan needs a server-side call or proxy, so factor that into which one fits a front-end project.
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.