AI agents have made 138 million crypto payments over x402, and most are worth under 10 cents

Crypto's next wave of users might not be people. A new report from Chainalysis says AI agents are already spending, and they're doing it in stablecoins.

The headline number

According to Chainalysis' latest Geography of Crypto report on North America, autonomous agents have made more than 138 million payments through x402, the Coinbase-incubated protocol that lets software pay for online services automatically. The activity runs on Base, Coinbase's layer-2.

The growth curve is steep. Cumulative x402 payments on Base went from roughly 1,500 in mid-2025 to over 138 million by Q3 2026, per Decrypt's read of the report.

What are agents buying? Compute, live web data, coding tools and access to AI models, paid for on the fly.

Tiny tickets

More than 87% of the payments analyzed fell between one-hundredth of a cent and 10 cents. That's the whole point. Card networks can't process payments that small economically. Stablecoins can.

The total value is still modest. CoinDesk notes that in July, x402 processed roughly 75 million payments worth just $24 million over 30 days.

The U.S. dominates inference spend

U.S.-linked wallets accounted for 88.1% of geographically identified payments for AI model inference. Chinese-linked wallets: 0.1%.

Chainalysis head of research Eric Jardine offered one explanation to CoinDesk: Chinese developers may lean on open-weight models like DeepSeek and Qwen, so they buy less metered inference. China flipped the script elsewhere, though. Chinese-linked wallets made up roughly 90% of identified payments for security and code-analysis services, much of it going to AgentLisa, an AI smart-contract auditing platform.

Wallets are sticking around

Two stats suggest real habits forming:

• Of wallets first funded in Q2 2026, 89.3% were topped up again within 30 days, versus 70.6% for wallets first funded in Q3 2025.
• The average gap between a wallet getting funded and making its first x402 payment fell from 73 days in late 2025 to 18 minutes in Q3 2026.

The caveat

Transaction counts aren't the same as demand. Decrypt points to earlier research from TRM suggesting much apparent agent activity on these rails may be scripts or self-dealing rather than genuine autonomous agents. And the data only covers identifiable x402 activity, not the whole market.

Why it matters

The rails are being built fast. Visa, Mastercard and Stripe have all moved to support agent payments, and Coinbase now lets business customers accept them. BlackRock's head of digital assets research, Will Su, told Chainalysis the firm is watching closely, "with AI agents potentially creating meaningful demand for frequent, low-value payments around the clock."

Even with the caveats, the direction is clear. Micropayments were always the use case stablecoins were made for. AI agents might be the customer that finally shows up for it.