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IPDetails.io API vs Quandl

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

APIIPDetails.io APIHEALTHY94QuandlHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms515823
P95 · ms10723525
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IPDetails.io API vs Quandl: common questions

Which is more reliable, IPDetails.io API or Quandl?

Both are neck-and-neck — IPDetails.io API and Quandl 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, IPDetails.io API or Quandl?

IPDetails.io API has the lower median latency in our checks — IPDetails.io API responds in 515 ms versus Quandl at 823 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 IPDetails.io API and Quandl need an API key?

Neither needs a paid key — IPDetails.io API is callable with no signup, and Quandl is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call IPDetails.io API and Quandl from the browser?

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

Are IPDetails.io API and Quandl free for commercial use?

IPDetails.io API has unclear commercial terms, and Quandl 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.