Arul's IP API vs ISO 3166-2 API
Same instrument, two spec sheets — measured, not claimed.
Arul's IP API vs ISO 3166-2 API: common questions
Which is more reliable, Arul's IP API or ISO 3166-2 API?
Both are neck-and-neck — Arul's IP API and ISO 3166-2 API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Arul's IP API or ISO 3166-2 API?
Arul's IP API has the lower median latency in our checks — Arul's IP API responds in 502 ms versus ISO 3166-2 API at 1056 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 Arul's IP API and ISO 3166-2 API need an API key?
Neither needs a paid key — Arul's IP API is callable with no signup, and ISO 3166-2 API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Arul's IP API and ISO 3166-2 API from the browser?
Yes — both Arul's IP API and ISO 3166-2 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 Arul's IP API and ISO 3166-2 API free for commercial use?
Arul's IP API has unclear commercial terms, and ISO 3166-2 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.