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Host.io vs PaperClean

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

APIHost.ioDEAD0PaperCleanDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Host.io vs PaperClean: common questions

Which is more reliable, Host.io or PaperClean?

Both are neck-and-neck — Host.io and PaperClean each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Do Host.io and PaperClean need an API key?

Both ask you to authenticate — Host.io uses an API key and PaperClean uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Host.io and PaperClean from the browser?

Yes — both Host.io 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 Host.io and PaperClean free for commercial use?

Host.io 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.