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Diffbot API vs TensorFeed

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

APIDiffbot APIUNMONITORED—TensorFeedNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — no key (static JSON feed endpoints)
Rate limitUnpublished120 req/window · 119 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

Diffbot API vs TensorFeed: common questions

Which is more reliable, Diffbot API or TensorFeed?

Only TensorFeed is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Diffbot API and TensorFeed need an API key?

TensorFeed needs no key, while Diffbot API requires a free API key. If you want to start calling without signup, reach for TensorFeed first.

Can I call Diffbot API and TensorFeed from the browser?

Yes — both Diffbot API and TensorFeed 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 TensorFeed free for commercial use?

Diffbot API has unclear commercial terms, and TensorFeed 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.