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Jumpseller API vs Portscan

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

APIJumpseller APINEW—PortscanNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Jumpseller API vs Portscan: common questions

Which is more reliable, Jumpseller API or Portscan?

On our scheduled checks, Portscan leads on measured uptime — Jumpseller API at —% versus Portscan 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 Jumpseller API and Portscan need an API key?

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

Can I call Jumpseller API and Portscan from the browser?

Yes — both Jumpseller API and Portscan 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 Jumpseller API and Portscan free for commercial use?

Jumpseller API has unclear commercial terms, and Portscan 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.