shipapis
StarSubmit an APISubmit API

Diffbot API vs Stock Sentiment API

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

APIDiffbot APIHEALTHY80Stock Sentiment APIHEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1144531
P95 · ms48851388
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Diffbot API vs Stock Sentiment API: common questions

Which is more reliable, Diffbot API or Stock Sentiment API?

Both are neck-and-neck — Diffbot API and Stock Sentiment API 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 Stock Sentiment API?

Stock Sentiment API has the lower median latency in our checks — Diffbot API responds in 1144 ms versus Stock Sentiment API at 531 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 Stock Sentiment API need an API key?

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

Yes — both Diffbot API and Stock Sentiment 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 Stock Sentiment API free for commercial use?

Diffbot API has unclear commercial terms, and Stock Sentiment 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.