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Ambee vs HOL Registry Broker

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

APIAmbeeNEW—HOL Registry BrokerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ambee vs HOL Registry Broker: common questions

Which is more reliable, Ambee or HOL Registry Broker?

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

Both ask you to authenticate — Ambee uses an API key and HOL Registry Broker 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 Ambee and HOL Registry Broker from the browser?

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

Are Ambee and HOL Registry Broker free for commercial use?

Ambee has unclear commercial terms, and HOL Registry Broker 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.