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NuGet V3 API vs The Guardian

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

APINuGet V3 APINEW—The GuardianNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

NuGet V3 API vs The Guardian: common questions

Which is more reliable, NuGet V3 API or The Guardian?

On our scheduled checks, The Guardian leads on measured uptime — NuGet V3 API at —% versus The Guardian 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 NuGet V3 API and The Guardian need an API key?

NuGet V3 API needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for NuGet V3 API first.

Can I call NuGet V3 API and The Guardian from the browser?

Yes — both NuGet V3 API and The Guardian 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 NuGet V3 API and The Guardian free for commercial use?

NuGet V3 API has unclear commercial terms, and The Guardian 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.