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Statistics of the World vs Web of Science API Expanded

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

APIStatistics of the WorldNEW—Web of Science API ExpandedNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (data sourced from World Bank & IMF)Unverified
Free tierFree — no key (optional X-API-Key header)Free tier — API key required
Rate limit1000 req/window · 999 remaining · resets 2026-07-09T11:30:37.514ZUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Statistics of the World vs Web of Science API Expanded: common questions

Which is more reliable, Statistics of the World or Web of Science API Expanded?

On our scheduled checks, Web of Science API Expanded leads on measured uptime — Statistics of the World at —% versus Web of Science API Expanded 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 Statistics of the World and Web of Science API Expanded need an API key?

Statistics of the World needs no key, while Web of Science API Expanded requires a free API key. If you want to start calling without signup, reach for Statistics of the World first.

Can I call Statistics of the World and Web of Science API Expanded from the browser?

Only Statistics of the World is browser-friendly — it returns CORS headers over HTTPS. Web of Science API Expanded needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Statistics of the World and Web of Science API Expanded free for commercial use?

Statistics of the World has unclear commercial terms, 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.