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ip-api.com vs npm Registry

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

APIip-api.comNEW—npm RegistryNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree (public registry)
Rate limitUnpublishedUnpublished (bulk scraping discouraged)
In directory since2026-07-052026-07-05
operationalpartialdownno data

ip-api.com vs npm Registry: common questions

Which is more reliable, ip-api.com or npm Registry?

On our scheduled checks, npm Registry leads on measured uptime — ip-api.com at —% versus npm Registry 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 ip-api.com and npm Registry need an API key?

Neither needs a paid key — ip-api.com is callable with no signup, and npm Registry is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ip-api.com and npm Registry from the browser?

Only npm Registry is browser-friendly — it returns CORS headers over HTTPS. ip-api.com needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ip-api.com and npm Registry free for commercial use?

ip-api.com has unclear commercial terms, and npm Registry 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.