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Keen IO vs Lemonfox.ai API

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

APIKeen IONEW—Lemonfox.ai APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Keen IO vs Lemonfox.ai API: common questions

Which is more reliable, Keen IO or Lemonfox.ai API?

On our scheduled checks, Lemonfox.ai API leads on measured uptime — Keen IO at —% versus Lemonfox.ai 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 Keen IO and Lemonfox.ai API need an API key?

Both ask you to authenticate — Keen IO uses an API key and Lemonfox.ai API 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 Keen IO and Lemonfox.ai API from the browser?

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

Are Keen IO and Lemonfox.ai API free for commercial use?

Keen IO has unclear commercial terms, and Lemonfox.ai 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.