Noctua vs Stock Sentiment API

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

Uptime · 30d
Uptime · 90d97.2%100%
Uptime · 30d91.4%100%
P50 · ms517333
P95 · ms16351388
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Noctua vs Stock Sentiment API: common questions

Which is more reliable, Noctua or Stock Sentiment API?

On our scheduled checks, Stock Sentiment API leads on measured uptime — Noctua at 97.2% versus Stock Sentiment API at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Noctua or Stock Sentiment API?

Stock Sentiment API has the lower median latency in our checks — Noctua responds in 517 ms versus Stock Sentiment API at 333 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 Noctua and Stock Sentiment API need an API key?

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

Can I call Noctua and Stock Sentiment API from the browser?

Only Stock Sentiment API is browser-friendly — it returns CORS headers over HTTPS. Noctua needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Noctua and Stock Sentiment API free for commercial use?

Noctua 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.