The next commerce revolution isn't a new store — it's a new customer: artificial intelligence. AI agents with their own digital wallets can already research products, compare prices, negotiate and complete purchases without a human pressing a single button. Peter Diamandis dedicated an issue of his Metatrends newsletter to this convergence of AI agents and programmable money — and the numbers he gathers show it's closer than it seems.
What's happening
Paolo Ardoino, CEO of Tether (issuer of the world's largest stablecoin), predicts 1 trillion AI agents with their own wallets, transacting autonomously in Bitcoin and stablecoins, within the next 15 years. Jeremy Allaire, CEO of Circle — which debuted on the New York Stock Exchange in 2025 as the first publicly traded stablecoin issuer, with tens of billions of USDC in circulation — points the same way: "money velocity will accelerate massively as AI agents proliferate," calling on-chain agents "a major new economic and organizational primitive."
And the infrastructure already exists: Coinbase launched x402, a protocol that revives an HTTP code dormant for 30 years — 402 Payment Required — to let machines pay machines instantly, like a vending machine: the agent receives a payment request, signs the transaction and receives the service. One round trip, no account, no card, no human.
How it works in practice
Diamandis's example is deliberately domestic: your AI assistant won't just research the best food for your diabetic dog — it knows the animal's medical history, cross-checks recent veterinary studies, compares prices across suppliers and completes the purchase with programmable money, within the budget and rules you set.
The same goes between companies: agents paying for API calls, storage, computing power and each other's services, with instant settlement and auditable rules. It's machine-to-machine commerce leaving the whiteboard — and real experiments, like Anthropic's Project Vend (where an AI ran a small office shop for weeks, with real suppliers and customers), have already shown both the potential and the stumbles of that autonomy.
The consequence almost nobody discusses: the end of marketing to humans?
The issue's most provocative prediction: if an agent is the one researching and deciding the purchase, traditional advertising loses its target. Brands will stop competing for human emotion and start competing for algorithmic discovery — verifiable specifications, clear prices, structured data, measurable reputation. Your next big customer might be software with purchasing power of attorney.
That doesn't mean marketing dies — it means it gains a second audience. And that audience doesn't read banners: it reads data.
What your business should do starting now
- Be machine-readable: structured data (schema.org), clear prices and specifications, explicit delivery and return policies. What we now call AEO — optimization for AI answer engines — is the first step of agentic commerce: before buying from you, the agent needs to find and understand you.
- Reduce purchase friction: if closing a deal with your company requires a phone call and an emailed invoice, the agent will pick the competitor with a clean checkout and an API.
- Start with limits: anyone deploying buying agents should define budgets, approved supplier lists and human approval thresholds — the lesson from early experiments is that autonomy without guardrails gets expensive.
- Watch the protocols: x402, programmable wallets and stablecoin rails are becoming the "credit card" of the machine economy.
Healthy skepticism
Trillion-scale predictions deserve a discount — regulation, fraud and the very reliability of agents remain real obstacles, and nobody hands financial power of attorney to software that hallucinates. But the direction is hard to dispute: every piece (capable agents, instant programmable payment, digital identity) already exists separately. What's missing is maturation — and that tends to arrive faster than planned.
This article is an original reading, with our own research, of the "Your AI Will Soon Spend Money Without You" issue of Peter Diamandis's Metatrends newsletter. Quotes and market predictions as reported in the issue.