TL;DR:
- Visa and Artemis say agentic commerce will split between macro-commerce for consumer-sized purchases and micro-commerce for frequent sub-dollar software payments.
- The report expects hybrid flows, with cards handling proxy purchases in merchant networks and stablecoins settling machine-native micropayments.
- Infrastructure gaps remain around identity, authorization, disputes and interoperability, even as x402 has processed over 109 million adjusted transactions and $15 million in volume since May 2025 across early AI payment standards.
Visa and Artemis have placed stablecoins at the center of a payments thesis: AI agents may not use money the way humans do. Their joint report says agentic commerce will split into macro-commerce, where agents book travel or manage subscriptions, and micro-commerce, where software systems make sub-dollar payments for APIs, data or compute. The crucial distinction is transaction size, because card rails work for merchant purchases, but fixed fees make micropayments uneconomic.
The report argues that newer blockchains have reduced settlement costs to fractions of a cent, making stablecoins suited for micro-commerce. Visa does not frame this as cards versus stablecoins. Instead, it expects hybrid flows where card rails handle proxy purchases inside merchant networks, while stablecoins settle machine-native payments inside software workflows. The future looks converged rather than competitive, with card-native protocols adding stablecoin support and crypto-native systems borrowing traditional trust infrastructure.
AI agents expose the weak spots in payment infrastructure
The infrastructure problem became urgent after AI agents crossed a capability threshold in mid-2025, gaining the ability to discover unfamiliar APIs, compare prices and decide on payments. Traditional card systems were built around human commerce, low-frequency transactions and chargebacks that move at human speed. That does not fit agents that may transact thousands of times per hour. Trust becomes the missing layer, because legal and regulatory frameworks were not written for delegated purchases made by software.
Some early standards show adoption. Coinbase’s x402 protocol has processed $15 million in adjusted volume across more than 109 million adjusted transactions since launching in May 2025. Activity accelerated in October 2025, when monthly transactions rose from 40,000 to 3.8 million, with 38 million transactions processed that month alone. Visa and Artemis also point to Tempo’s Machine Payment Protocol, spanning onchain crypto and fiat payments through shared tokens. The standards race has already started, before legal clarity catches up.
The warning is that adoption still needs infrastructure for identity, authorization, dispute handling and interoperability. There is no settled method for reversing disputed payments when chains of agents interact at machine speed, and evidence rules remain human-centered. Visa’s goal is to support card-native trust and authorization beside machine-native settlement, not choose one system. Stablecoins may power the small payments, but agentic commerce will only scale if trust, compliance and settlement work together.
