This week, the AI agent payment race went mainstream. Binance launched "keyless wallets" for AI agents. Coinbase rolled out APIs to give any agent a wallet. Catena Labs raised $18M from a16z to build an AI-native financial institution. Sapiom raised $15.75M to enable agent payments across APIs. The market is validating what we've been building: AI agents need to pay for things autonomously. And the numbers prove it's already happening—2.364 million stablecoin payments per month from agents, 43% of retailers piloting AI shopping agents, Telegram bots paying for API calls. But here's the problem: everyone's racing to solve "how do we let agents access money?" when the real question is "who owns the money when something breaks?" The Two Architectures There are two fundamentally different approaches to agent wallets, and the distinction matters more than any feature comparison.…