@Claudio Calabresi you can't access the database, but you can access the API and put custom fields into a spreadsheet.
This Trellinator script would create a Google Sheet with all the card names, links and custom fields:
You can read more about Trellinator here:
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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