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Arul's IP API vs Cartes.io

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

APIArul's IP APINEW—Cartes.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (open-source project; user-generated maps)
Free tierFree — limits not publishedFree, no API key for public read
Rate limitUnpublished60 req/window · 59 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

Arul's IP API vs Cartes.io: common questions

Which is more reliable, Arul's IP API or Cartes.io?

On our scheduled checks, Cartes.io leads on measured uptime — Arul's IP API at —% versus Cartes.io 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 Arul's IP API and Cartes.io need an API key?

Neither needs a paid key — Arul's IP API is callable with no signup, and Cartes.io is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Arul's IP API and Cartes.io from the browser?

Yes — both Arul's IP API and Cartes.io 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 Arul's IP API and Cartes.io free for commercial use?

Arul's IP API has unclear commercial terms, and Cartes.io 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.