Where to get / buy American UPC bases?

Question

data mining

Tell me, is there a single database in the public domain or on sale with a product/manufacturer linked to a barcode?

Answer 1

Somewhere you can download it, somewhere you can access it via API:
https://www.outpan.com/developers.php
www.ean13.info/info/contacts.php
www.product-open-data.com/download
www. grocery.com/open-grocery-database-project
www.ean-search.org