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NetworkCalc vs Shodan EntityDB API

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

APINetworkCalcNEW—Shodan EntityDB APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree public API, no keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

NetworkCalc vs Shodan EntityDB API: common questions

Which is more reliable, NetworkCalc or Shodan EntityDB API?

On our scheduled checks, Shodan EntityDB API leads on measured uptime — NetworkCalc at —% versus Shodan EntityDB API 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 NetworkCalc and Shodan EntityDB API need an API key?

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

Can I call NetworkCalc and Shodan EntityDB API from the browser?

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

Are NetworkCalc and Shodan EntityDB API free for commercial use?

NetworkCalc has unclear commercial terms, and Shodan EntityDB API 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.