The convergence of AI agents and blockchain infrastructure was not planned. It emerged from a practical problem: AI agents that operate autonomously — browsing the web, executing tasks, purchasing services on behalf of users — need a way to transact without human approval at every step. Credit cards require a human name, a billing address, and terms of service that presuppose a human accountholder. Bank accounts require identity verification that legal entities find cumbersome and software agents cannot satisfy. Crypto wallets require none of this.