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Diffbot API vs Keen IO

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

APIDiffbot APIHEALTHY80Keen IOHEALTHY90
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1144667
P95 · ms48851461
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Diffbot API vs Keen IO: common questions

Which is more reliable, Diffbot API or Keen IO?

Both are neck-and-neck — Diffbot API and Keen IO each measure 100% 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.

Which is faster, Diffbot API or Keen IO?

Keen IO has the lower median latency in our checks — Diffbot API responds in 1144 ms versus Keen IO at 667 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Diffbot API and Keen IO need an API key?

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

Only Diffbot 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 Diffbot API and Keen IO free for commercial use?

Diffbot API has unclear commercial terms, and Keen IO 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.