REST Countries vs Web of Science API Expanded
Same instrument, two spec sheets — measured, not claimed.
REST Countries vs Web of Science API Expanded: common questions
Which is more reliable, REST Countries or Web of Science API Expanded?
On our scheduled checks, REST Countries leads on measured uptime — REST Countries at 100% versus Web of Science API Expanded at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, REST Countries or Web of Science API Expanded?
REST Countries has the lower median latency in our checks — REST Countries responds in 328 ms versus Web of Science API Expanded at 787 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 Web of Science API Expanded need an API key?
REST Countries needs no key, while Web of Science API Expanded requires a free API key. If you want to start calling without signup, reach for REST Countries first.
Can I call REST Countries and Web of Science API Expanded from the browser?
Neither sends browser-friendly CORS headers reliably, so call REST Countries and Web of Science API Expanded 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 Web of Science API Expanded free for commercial use?
REST Countries allows commercial use on its free tier, and Web of Science API Expanded 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.