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HOL Registry Broker vs Universities List

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

APIHOL Registry BrokerNEW—Universities ListNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

HOL Registry Broker vs Universities List: common questions

Which is more reliable, HOL Registry Broker or Universities List?

On our scheduled checks, Universities List leads on measured uptime — HOL Registry Broker at —% versus Universities List 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 HOL Registry Broker and Universities List need an API key?

Universities List needs no key, while HOL Registry Broker requires a free API key. If you want to start calling without signup, reach for Universities List first.

Can I call HOL Registry Broker and Universities List from the browser?

Neither sends browser-friendly CORS headers reliably, so call HOL Registry Broker and Universities List from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are HOL Registry Broker and Universities List free for commercial use?

HOL Registry Broker has unclear commercial terms, and Universities List 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.