CardZero — the first payment wallet built for AI agents. Create USDC wallets on Base L2, make payments, pay x402 paywalls, pay other agents, check balance, view transactions, and run A2A jobs with on-chain escrow (ERC-8183). Human owner sets spending rules via Dashboard; agent pays autonomously with
CardZero — the first payment wallet built for AI agents. Create USDC wallets on Base L2, make payments, pay x402 paywalls, pay other agents, check balance, view transactions, and run A2A jobs with on-chain escrow (ERC-8183). Human owner sets spending rules via Dashboard; agent pays autonomously within limits. Use when agent needs to: 'pay for API access', 'send USDC', 'pay 402 paywall', 'create a