The x402 Adoption Tracker

Members

Confirmed members of the x402 Foundation. A member appears here only when the membership is verifiable against a primary source.

Integrations

Live means verified running in production, not an announcement. Announced means a public commitment with no shipped product yet.

Real-world usage data

The most honest account of what x402 traffic actually looks like today.

Cumulative transactions on Base. Chainalysis counts more than 138 million x402 transactions on Base by the end of its Q3 2026 window, up from about 1,500 in mid-2025 and 100 million through Q1 2026. Over 87 percent of payments fall between a hundredth of a cent and a dime, with the most common size between one and ten cents. The median wallet was 73 days old at its first x402 payment in late 2025 and 18 minutes old by Q3 2026. American wallets account for 88.1 percent of geolocated model-inference payments on the protocol. Raw protocol counts, not adjusted for scripts or self-dealing; read alongside the TRM Labs filtering above.

Share of screened payment value that appears agentic (TRM Labs). TRM Labs identified roughly $52.7 million across 198.9 million settlement transactions through known x402 facilitators on Base, Solana, and Polygon since May 2025. After removing self-payments, bulk flows from one or two payers, and sellers with fewer than 10 distinct buyers, $25.62 million remained. TRM then applied two tests. The permissive test counts any payer whose payments were broadcast by a facilitator, averaged under a dollar, and varied in price. The strict test also requires the pattern to persist across months and the payer to be registered in a public agent registry (ERC-8004) or to have paid more than one seller. TRM puts agent-moved volume at roughly $5,000 to $11,000 a month in 2026, and says its method "may understate the space" because single-purpose agents would read as scripts. TRM also reports 99.6 percent of value settled in USDC.

Adjusted cumulative volume (Visa and Artemis). Visa's summary of its joint report with Artemis says x402 "has processed roughly $15.0 million in adjusted volume across 109.6 million transactions" since May 2025, and that the average payment is a fraction of a cent. Adjusted totals exclude identified wash and test activity. The full report gives the raw onchain totals for the same date as $135.7 million across 178.3 million transactions. Most activity was on Base, Solana, and Polygon.

Cumulative transactions on Base. Growth surged in Q4 2025, driven largely by meme coin activity (notably PING), then moderated in early 2026. Chainalysis is direct that mass adoption remains distant and that current participants are mostly crypto-native.

30-day value transferred. Sellers grew 23 percent and buyers grew 37 percent over the same window.

Tester-to-payer conversion. The historical baseline worth keeping: in late Q1 2026 a single independent data marketplace reported 1,183 agent probes, 5 settlements, and $0.11 of revenue. The bounce diagnosis then was evaluation friction, not payment friction: agents declining to pay because they cannot judge whether a resource is worth the cost. The improving conversion rate is the number to watch against that diagnosis.

Real daily volume (independent onchain analysis). Artemis classified roughly half of observed x402 transactions as artificial: "self-dealing" (one wallet as both buyer and seller) and wash trading (the seller funds the buyer, which sends the money straight back). The same snapshot showed about 131,000 daily transactions averaging $0.20. The July 2026 Visa and Artemis report, listed above, is the successor series: it publishes adjusted totals that exclude identified wash and test activity.

Spec status

Open questions and gaps

1. Trust scoring. Still no merged trust-scoring spec. Two extension proposals are open in the Foundation repository (#2299 behavioral trust provider, #1777 DID-based agent trust). The Offer and Receipt extension lists 'verifiable proof of commercial interactions for reputation systems' as a use case.
2. Stablecoin dependency. TRM Labs (September 9, 2026) found 99.6 percent of the x402 value it analyzed settled in USDC. Other assets now named by members: XRP and RLUSD (Ripple), Open USD (Cloudflare Monetization Gateway, announced), AUSD (Fireblocks stack).
3. Dispute resolution. No arbitration framework and no Reg E equivalent. The auth-capture scheme in the Foundation repository (v1.1, August 25, 2026) adds void, refund, and client reclaim operations at the protocol level, and two dispute-layer issues are open (#2887, #3500).
4. Liability for bad agent behavior. Hijacked, prompt-injected, or misconfigured agents. Nobody has taken a position.
5. Merchant adoption. I found no primary source showing a large merchant offering x402 as a consumer-visible payment option. Seller-side tooling has widened: AWS CloudFront and WAF (generally available), Stripe machine payments (x402 on Base, preview API), and Cloudflare's Monetization Gateway (waitlist). The Merchant Advisory Group has joined the Foundation as an Associate member.

Changelog

Related reading

• The x402 Adoption Tracker Is Live
• What x402 Actually Is, and Why It Is the Internet's First Payment Layer
• The Internet Just Got a Payment Layer. No Card Network Required.
• The Agentic Commerce Protocol Map: Q1 2026
• Nevermined Just Shipped What Everyone Else Is Still Announcing: AI Agents That Pay With Cards
• x402: The Internet Just Got a Payment Button. AI Agents Are Already Using It.