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NetworkCalc vs PaperClean

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

APINetworkCalcNEW—PaperCleanNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree public API, no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

NetworkCalc vs PaperClean: common questions

Which is more reliable, NetworkCalc or PaperClean?

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

NetworkCalc needs no key, while PaperClean requires a free API key. If you want to start calling without signup, reach for NetworkCalc first.

Can I call NetworkCalc and PaperClean from the browser?

Yes — both NetworkCalc and PaperClean 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 NetworkCalc and PaperClean free for commercial use?

NetworkCalc has unclear commercial terms, and PaperClean 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.