Building the Payment Gateway for AI Agents: A Technical Deep Dive

The AI agent ecosystem is accelerating. Catena Labs raised $18M. Coinbase shipped agent wallets. Mastercard completed live payments. The market consensus is building: agents will move money at scale. But there's a critical infrastructure gap that most players are overlooking. The Problem: Agents Can Execute Anything Except Payments An AI agent can: Query databases Execute code Manage repositories Orchestrate multi-step workflows Call external APIs But the moment it needs to pay for something—a compute resource, an API call, a flight booking—the entire flow breaks. Why? Because existing payment infrastructure (Stripe, PayPal, Square) was built for humans. The entire architecture assumes: A person reviews the transaction A person clicks "approve" A person can be held liable Agents don't fit this model. They can't "click approve." They shouldn't bottleneck on human review. And the liability model is fundamentally different. This is the problem AgentWallex solves. The AgentWallex Architect