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Catchdoms Security API vs npm Registry

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

APICatchdoms Security APINEW—npm RegistryNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
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

Catchdoms Security API vs npm Registry: common questions

Which is more reliable, Catchdoms Security API or npm Registry?

On our scheduled checks, npm Registry leads on measured uptime — Catchdoms Security API 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 Catchdoms Security API and npm Registry need an API key?

Neither needs a paid key — Catchdoms Security API 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 Catchdoms Security API and npm Registry from the browser?

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

Are Catchdoms Security API and npm Registry free for commercial use?

Catchdoms Security API 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.