One card per agent
The hosted agent refills one card: the one in its Agentic Wallet’s address book. Anyone can create and activate a card, top it up and use the app. The Card | Agent switch on Home appears only for the card the agent refills. This comes from how the Agentic Wallet works today: one wallet per Binance account, driven by onebaw CLI session, with no HTTP API. See Agent wallet.