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Callook.info vs French Business API

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

APICallook.infoNEW—French Business APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (data from public FCC ULS records)Unverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Callook.info vs French Business API: common questions

Which is more reliable, Callook.info or French Business API?

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

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

Can I call Callook.info and French Business API from the browser?

Yes — both Callook.info and French Business API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Callook.info and French Business API free for commercial use?

Callook.info has unclear commercial terms, and French Business API 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.