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Ambee vs Callook.info

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

APIAmbeeNEW—Callook.infoNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (data from public FCC ULS records)
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ambee vs Callook.info: common questions

Which is more reliable, Ambee or Callook.info?

On our scheduled checks, Callook.info leads on measured uptime — Ambee at —% versus Callook.info 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 Callook.info need an API key?

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

Can I call Ambee and Callook.info from the browser?

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

Are Ambee and Callook.info free for commercial use?

Ambee has unclear commercial terms, and Callook.info 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.