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Stock Sentiment API vs Unusual Units Converter

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

APIStock Sentiment APINEW—Unusual Units ConverterNEW—
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 — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Stock Sentiment API vs Unusual Units Converter: common questions

Which is more reliable, Stock Sentiment API or Unusual Units Converter?

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

Do Stock Sentiment API and Unusual Units Converter need an API key?

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

Can I call Stock Sentiment API and Unusual Units Converter from the browser?

Yes — both Stock Sentiment API and Unusual Units Converter 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 Stock Sentiment API and Unusual Units Converter free for commercial use?

Stock Sentiment API has unclear commercial terms, and Unusual Units Converter 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.