agent-cards attach --help
Usage: agent-cards attach [options]
Attach your own Visa so purchases charge it directly (no KYC, no funding)
Options:
--add Attach another card alongside the current one (multi-card)
--replace Remove the currently attached card first, then attach a new
one
--list Show all attached cards (the row marked (default) is the mint
target; change it with settings default-card)
--remove <id> Remove one attached card by id (cards minted against it close)
--json Machine-readable output (single POST, no browser/poll)
-h, --help display help for command