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Web of Science API Expanded vs Zenodo

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

APIWeb of Science API ExpandedHEALTHY90ZenodoHEALTHY57
Uptime · 30d
Uptime · 90d99.44%94.4%
Uptime · 30d100%96.7%
P50 · ms6491794
P95 · ms19854935
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublished30 req/window · 29 remaining · resets 1783516620
In directory since2026-07-052026-07-05
operationalpartialdownno data

Web of Science API Expanded vs Zenodo: common questions

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

On our scheduled checks, Web of Science API Expanded leads on measured uptime — Web of Science API Expanded at 99.44% versus Zenodo at 94.4% 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 Zenodo?

Web of Science API Expanded has the lower median latency in our checks — Web of Science API Expanded responds in 649 ms versus Zenodo at 1794 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 Zenodo need an API key?

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

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

Only Zenodo 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 Zenodo free for commercial use?

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