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Jumpseller API vs National Vulnerability Database

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

APIJumpseller APIHEALTHY89National Vulnerability DatabaseDYING78
Uptime · 30d
Uptime · 90d99.02%86.3%
Uptime · 30d98.3%83.3%
P50 · ms790974
P95 · ms17804777
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (U.S. Government work)
Free tierFree — limits not publishedFree — no key required (free key raises limits)
Rate limitUnpublished5 requests per rolling 30 seconds without an API key (50 with a free key)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Jumpseller API vs National Vulnerability Database: common questions

Which is more reliable, Jumpseller API or National Vulnerability Database?

On our scheduled checks, Jumpseller API leads on measured uptime — Jumpseller API at 99.02% versus National Vulnerability Database at 86.3% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Jumpseller API or National Vulnerability Database?

Jumpseller API has the lower median latency in our checks — Jumpseller API responds in 790 ms versus National Vulnerability Database at 974 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Jumpseller API and National Vulnerability Database need an API key?

Neither needs a paid key — Jumpseller API is callable with no signup, and National Vulnerability Database is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Jumpseller API and National Vulnerability Database from the browser?

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

Are Jumpseller API and National Vulnerability Database free for commercial use?

Jumpseller API has unclear commercial terms, and National Vulnerability Database allows commercial use on its free tier. 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.