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Gladia vs Web of Science API Expanded

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

APIGladiaHEALTHY76Web of Science API ExpandedHEALTHY88
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms1203787
P95 · ms41211985
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Gladia vs Web of Science API Expanded: common questions

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

On our scheduled checks, Gladia leads on measured uptime — Gladia 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, Gladia or Web of Science API Expanded?

Web of Science API Expanded has the lower median latency in our checks — Gladia responds in 1203 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 Gladia and Web of Science API Expanded need an API key?

Both ask you to authenticate — Gladia uses an API key and Web of Science API Expanded uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

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

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

Gladia 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.