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PaperClean vs ParlayAPI

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

APIPaperCleanDEAD0ParlayAPIREACHABLE88
Uptime · 30d
Uptime · 90d0.0%87.5%
Uptime · 30d0.0%87.5%
P50 · ms—211
P95 · ms—1536
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limitUnpublished
In directory since2026-07-052026-10-04
operationalpartialdownno data

PaperClean vs ParlayAPI: common questions

Which is more reliable, PaperClean or ParlayAPI?

On our scheduled checks, ParlayAPI leads on measured uptime — PaperClean at 0.0% versus ParlayAPI at 87.5% 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 PaperClean and ParlayAPI need an API key?

Both ask you to authenticate — PaperClean uses an API key and ParlayAPI 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 PaperClean and ParlayAPI from the browser?

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

Are PaperClean and ParlayAPI free for commercial use?

PaperClean has unclear commercial terms, and ParlayAPI 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.