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npm Registry vs Yes No

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

APInpm RegistryNEW—Yes NoNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree (public registry)Free — limits not published
Rate limitUnpublished (bulk scraping discouraged)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

npm Registry vs Yes No: common questions

Which is more reliable, npm Registry or Yes No?

On our scheduled checks, Yes No leads on measured uptime — npm Registry at —% versus Yes No 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 npm Registry and Yes No need an API key?

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

Can I call npm Registry and Yes No from the browser?

Yes — both npm Registry and Yes No send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are npm Registry and Yes No free for commercial use?

npm Registry has unclear commercial terms, and Yes No 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.