Free APIVision & SpeechAPI keyOfficial
OCR.space Free OCR API
25k OCR calls/month on a free key, plus a shared 'helloworld' demo key for instant testing
OCR.space is a cloud OCR API by a9t9 Software that extracts text from images and PDFs and returns JSON with the parsed text and optional word-level overlay coordinates. It supports 100+ languages across Latin, Cyrillic, CJK and Arabic scripts and can output a searchable PDF. Three OCR engines (1/2/3) are selectable per request via the OCREngine parameter.
Free tier
Free, no card: 25,000 requests/month on a registered keyRate limits
~500 requests/day on the free tier; free-tier files capped at 1 MB and PDFs at 3 pagesAuth
API keyBase URL
https://api.ocr.spaceWhat you'd build with it
- Extract text from receipts, invoices or screenshots inside a Claude Skill
- Pre-process scanned PDFs into searchable text for a RAG pipeline
- Pull text from user-uploaded images in an automation without standing up Tesseract
Key endpoints
- POST
/parse/imageOCR an uploaded file, base64 image, or remote URL and return text plus optional word coordinates - GET
/parse/imageurlOCR a remote image/PDF by URL via GET
Members
Members get the runnable recipe
Sign in free to copy the example request, see a sample response, and read the gotchas.
Tags
ocrdocumentspdftext-extractionvision