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Urlbox API vs Zenodo

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

APIUrlbox APINEW—ZenodoNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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

Urlbox API vs Zenodo: common questions

Which is more reliable, Urlbox API or Zenodo?

On our scheduled checks, Zenodo leads on measured uptime — Urlbox API at —% versus Zenodo 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 Urlbox API and Zenodo need an API key?

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

Can I call Urlbox API and Zenodo from the browser?

Only Zenodo is browser-friendly — it returns CORS headers over HTTPS. Urlbox API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Urlbox API and Zenodo free for commercial use?

Urlbox API 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.