Coinbase CEO Brian Armstrong says AI agents could create an economy larger than human commerce as machine-to-machine payments move onto crypto rails.
Summary
- Brian Armstrong says machine-to-machine payments could lift demand for digital dollars beyond current estimates.
- x402 recorded 75.41 million transactions and $24.24 million volume over the last 30 days.
- Base and USDC remain central to Coinbase’s plan for AI agent payments and commerce.
Armstrong wrote on X that agentic commerce is not yet priced in and said machine-to-machine payments could increase demand for digital dollars beyond current estimates. He added, “The agentic economy could be larger than the human economy.”
The statement builds on Coinbase’s wider push into AI agent payments. The company has been building payment tools that let software agents pay for APIs, data, cloud services, and other digital products without a human approving every transaction.
Coinbase has focused on stablecoins because AI agents need payments that work at internet speed. In its Q1 2026 earnings call, Coinbase said USDC and Base power most on-chain stablecoin transactions for AI agents.
The company also said AI agents use USDC in 99% of those transactions, while more than 90% run on Base. It said agents are already using x402 for trading, AI, inference, media generation, storage, and other tasks.
x402 and Base lead USDC agent payments
x402 is an open payment standard that lets websites and APIs request payment through the HTTP 402 “Payment Required” response. The protocol allows clients, apps, and AI agents to pay for access without account setup or API key management.
Official x402 data shows 75.41 million transactions and $24.24 million in volume over the last 30 days. The same dashboard lists 94,060 buyers and 22,000 sellers during that period.
Related coverage from crypto.news reported that Coinbase’s Agentic.market gives AI agents a marketplace to discover and buy services using USDC through x402. The report said the platform had already settled about 165 million transactions when it launched.
The same report said Base handled 85% of the 165 million x402 transactions at the time. That gives Coinbase a strong position in the early agent payment market, where low fees and fast settlement matter.
AWS and Google Cloud expand agent payment rails
Large technology firms are also testing agent payments. AWS launched Amazon Bedrock AgentCore Payments in preview, built with Coinbase and Stripe, to let agents make stablecoin micropayments through x402.
AWS said AgentCore Payments lets agents discover, authorize, and execute x402 payments with wallet management, spending limits, and audit logs. It also said Coinbase developed x402 and built the wallet infrastructure that powers the preview payment flows.
Stripe has also moved into the same market. Earlier crypto.news coverage reported that Stripe launched x402 payments on Base, allowing AI agents to pay for APIs, data, and compute with USDC.
Google Cloud and Solana are building a parallel route through Pay.sh. crypto.news reported that Pay.sh lets AI agents access Gemini, BigQuery, and Vertex AI APIs using stablecoin payments on Solana.
AI agent economy puts USDC demand in focus
The AI agent payment race is now becoming a stablecoin story. If agents pay for data, compute, and services in small amounts, demand may shift toward fast, dollar-backed digital assets.
Armstrong’s view is that AI agents will need money built for the internet. Coinbase is trying to supply that stack through USDC, Base, x402, and Agentic.market.
The market is still early. Many systems remain in preview or limited rollout. Yet the transaction numbers show that agent payments are moving from concept to live usage.
