MoonPay launched PayBox on July 29, 2026, letting AI agents inside Claude and ChatGPT move and spend a user’s money. Card payments run through Visa’s agentic commerce protocol, so PayBox never sees or stores the raw card number. MoonPay ships two permission modes, Always Ask for approval on every transaction and Autonomous for action inside user-set limits. MoonPay, the fintech company that moves value across fiat and digital assets, released PayBox as a custom connector users install inside Claude or ChatGPT. MoonPay said “no single party, including MoonPay or the AI agent itself, can ever access the full private key or sign transactions independently.“