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The Open Library project https://openlibrary.org/developers https://openlibrary.org/developers has a free ISBN API. I used it along with tesseract OCR and a web
by danofsteel32 4y ago
The Open Library project https://openlibrary.org/developers https://openlibrary.org/developers has a free ISBN API. I used it along with tesseract OCR and a webcam to build a database of my physical books (218 total). I never had any rate limiting issues.