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OCR.Space vs Poptin API

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

APIOCR.SpaceDEAD0Poptin APIREACHABLE100
Uptime · 30d
Uptime · 90d0.0%100%
Uptime · 30d0.0%100%
P50 · ms—698
P95 · ms—1705
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key may be required for production
Rate limitUnpublished120 req/window · 119 remaining
In directory since2026-07-052026-10-04
operationalpartialdownno data

OCR.Space vs Poptin API: common questions

Which is more reliable, OCR.Space or Poptin API?

On our scheduled checks, Poptin API leads on measured uptime — OCR.Space at 0.0% versus Poptin 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.

Do OCR.Space and Poptin API need an API key?

Both ask you to authenticate — OCR.Space uses an API key and Poptin API 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 OCR.Space and Poptin API from the browser?

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

OCR.Space has unclear commercial terms, and Poptin 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.