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ArgentinaDatos vs Lookup.im API

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

APIArgentinaDatosHEALTHY80Lookup.im APIHEALTHY84
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%100%
P50 · ms921158
P95 · ms7583581
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ArgentinaDatos vs Lookup.im API: common questions

Which is more reliable, ArgentinaDatos or Lookup.im API?

On our scheduled checks, ArgentinaDatos leads on measured uptime — ArgentinaDatos at 100% versus Lookup.im API at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ArgentinaDatos or Lookup.im API?

ArgentinaDatos has the lower median latency in our checks — ArgentinaDatos responds in 92 ms versus Lookup.im API at 1158 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do ArgentinaDatos and Lookup.im API need an API key?

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

Can I call ArgentinaDatos and Lookup.im API from the browser?

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

Are ArgentinaDatos and Lookup.im API free for commercial use?

ArgentinaDatos has unclear commercial terms, and Lookup.im 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.