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httpSMS vs OCR.Space

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

APIhttpSMSNEW—OCR.SpaceREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

httpSMS vs OCR.Space: common questions

Which is more reliable, httpSMS or OCR.Space?

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

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

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

httpSMS 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.