inspirehep.net vs Stock Sentiment API

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthnoneapiKey
CORSyesyes
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

inspirehep.net vs Stock Sentiment API: common questions

Which is more reliable, inspirehep.net or Stock Sentiment API?

On our scheduled checks, Stock Sentiment API leads on measured uptime — inspirehep.net at —% versus Stock Sentiment API 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 inspirehep.net and Stock Sentiment API need an API key?

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

Can I call inspirehep.net and Stock Sentiment API from the browser?

Yes — both inspirehep.net 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 inspirehep.net and Stock Sentiment API free for commercial use?

inspirehep.net 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.