MoonPay’s PayBox Lets AI Agents Spend Without Taking Custody

MoonPay launched PayBox, a payment vault integrated into AI assistants like Claude and ChatGPT, enabling users to authorize payments and transactions securely without the AI or MoonPay having custody of funds. PayBox supports multiple blockchains and uses threshold cryptography to split keys, requiring user passkey approval for transactions under set policies. The system also supports payments outside crypto via the x402 standard, facilitating real-world purchases like restaurant reservations,旅行