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Notion vs OCR.Space

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

APINotionREACHABLE100OCR.SpaceDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms524—
P95 · ms3096—
AuthoauthapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierOAuth — some read routes may be publicFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Notion vs OCR.Space: common questions

Which is more reliable, Notion or OCR.Space?

On our scheduled checks, Notion leads on measured uptime — Notion at 100% versus OCR.Space at 0.0% 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 Notion and OCR.Space need an API key?

Both ask you to authenticate — Notion uses OAuth and OCR.Space 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 Notion and OCR.Space from the browser?

Yes — both Notion and OCR.Space 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 Notion and OCR.Space free for commercial use?

Notion has unclear commercial terms, and OCR.Space 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.