Newton vs Stock Sentiment API
Same instrument, two spec sheets — measured, not claimed.
Newton vs Stock Sentiment API: common questions
Which is more reliable, Newton or Stock Sentiment API?
Both are neck-and-neck — Newton 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, Newton or Stock Sentiment API?
Newton has the lower median latency in our checks — Newton responds in 323 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 Newton and Stock Sentiment API need an API key?
Newton needs no key, while Stock Sentiment API requires a free API key. If you want to start calling without signup, reach for Newton first.
Can I call Newton and Stock Sentiment API from the browser?
Yes — both Newton 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 Newton and Stock Sentiment API free for commercial use?
Newton 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.