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Diffbot API vs Lemonfox.ai API

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

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

Diffbot API vs Lemonfox.ai API: common questions

Which is more reliable, Diffbot API or Lemonfox.ai API?

On our scheduled checks, Lemonfox.ai API leads on measured uptime — Diffbot API 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 Diffbot API and Lemonfox.ai API need an API key?

Both ask you to authenticate — Diffbot API 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 Diffbot API and Lemonfox.ai API from the browser?

Yes — both Diffbot API and Lemonfox.ai API 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 Diffbot API and Lemonfox.ai API free for commercial use?

Diffbot API 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.