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Web of Science API Expanded vs Wikipedia REST

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

APIWeb of Science API ExpandedHEALTHY88Wikipedia RESTHEALTHY99
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms78798
P95 · ms1985961
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY-SA 4.0
Free tierFree tier — API key requiredUnlimited within etiquette
Rate limitUnpublished200/sec global courtesy cap
In directory since2026-07-052026-05-09
operationalpartialdownno data

Web of Science API Expanded vs Wikipedia REST: common questions

Which is more reliable, Web of Science API Expanded or Wikipedia REST?

On our scheduled checks, Wikipedia REST leads on measured uptime — Web of Science API Expanded at 99.02% versus Wikipedia REST at 100% 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, Web of Science API Expanded or Wikipedia REST?

Wikipedia REST has the lower median latency in our checks — Web of Science API Expanded responds in 787 ms versus Wikipedia REST at 98 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 Web of Science API Expanded and Wikipedia REST need an API key?

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

Can I call Web of Science API Expanded and Wikipedia REST from the browser?

Only Wikipedia REST 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 Web of Science API Expanded and Wikipedia REST free for commercial use?

Web of Science API Expanded has unclear commercial terms, and Wikipedia REST 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.