Max Branzburg said the new card is now open to US users who are members of Coinbase One, offering up to 4% back in bitcoin on every purchase.
Coinbase Opens Amex Card with Up to 4% BTC Cash Back for US Coinbase One Members

Max Branzburg said the new card is now open to US users who are members of Coinbase One, offering up to 4% back in bitcoin on every purchase.