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Datamuse vs IP Geolocation API

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

APIDatamuseNEW—IP Geolocation APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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

Datamuse vs IP Geolocation API: common questions

Which is more reliable, Datamuse or IP Geolocation API?

On our scheduled checks, IP Geolocation API leads on measured uptime — Datamuse at —% versus IP Geolocation API 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 Datamuse and IP Geolocation API need an API key?

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

Can I call Datamuse and IP Geolocation API from the browser?

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

Are Datamuse and IP Geolocation API free for commercial use?

Datamuse has unclear commercial terms, and IP Geolocation 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.