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IPDetails.io API vs MarketAux

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

APIIPDetails.io APIHEALTHY94MarketAuxDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms515—
P95 · ms1072—
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — token required
Rate limitUnpublished100 requests/day on free plan
In directory since2026-07-052026-07-05
operationalpartialdownno data

IPDetails.io API vs MarketAux: common questions

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

On our scheduled checks, IPDetails.io API leads on measured uptime — IPDetails.io API at 100% versus MarketAux at 0.0% 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 IPDetails.io API and MarketAux need an API key?

IPDetails.io API needs no key, while MarketAux requires a free API key. If you want to start calling without signup, reach for IPDetails.io API first.

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

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

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

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