Keen IO vs Stock Sentiment API
Same instrument, two spec sheets — measured, not claimed.
Keen IO vs Stock Sentiment API: common questions
Which is more reliable, Keen IO or Stock Sentiment API?
Both are neck-and-neck — Keen IO 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, Keen IO or Stock Sentiment API?
Stock Sentiment API has the lower median latency in our checks — Keen IO responds in 667 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 Keen IO and Stock Sentiment API need an API key?
Both ask you to authenticate — Keen IO 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 Keen IO and Stock Sentiment API from the browser?
Only Stock Sentiment 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 Stock Sentiment API free for commercial use?
Keen IO 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.