The x402 Foundation — the Linux Foundation body stewarding the x402 machine-payment protocol — has 40 member organizations as of its July 14, 2026 operational launch. Every article covers the announcement; nobody published the full roster as infrastructure intelligence. So here it is: all 40, by tier, with what each heavy hitter structurally adds.
The timeline
- April 2, 2026: intent to launch at the MCP Dev Summit ("4/02 Day"). Coinbase contributes x402 to the Linux Foundation. 22 founding members. Coinbase, Cloudflare, and Stripe become co-founders with elevated governance roles.
- July 14, 2026: operational launch. 40 member organizations.
Premier members (17)
Adyen, Amazon Web Services, American Express, Circle, Cloudflare, Coinbase, Fiserv, Google, Mastercard, Monad Foundation, MoonPay, Ripple, Shopify, Solana Foundation, Stellar Development Foundation, Stripe, Visa.
What the key ones add: the card networks (Visa, Mastercard, Amex) stretch the spec to "traditional cards to stablecoins" — this is a web-payments rail now, not a crypto rail. Ripple brings XRP + RLUSD settlement on the XRP Ledger. Stellar brings a second non-EVM settlement path. Circle issues USDC, the asset doing essentially all current volume. AWS and Google bring cloud scale (both have exec quotes in the launch release).
General members (18)
Aleo, Fireblocks, Galaxia Moneytree, Hecto Financial, Injective, KakaoPay, Kite AI, LayerZero Labs, Merit Systems, NEAR Foundation, Orthogonal, Polygon Labs, Quant Network, SKALE, t54 labs, utexo, World Liberty Financial, zerohash.
Associate members (5)
BSV Association, Cardano Foundation, Casper, Japanese Contents Blockchain Initiative, OMA3.
The honest caveat
Membership is governance, not volume. Per an ecosystem tracker's corrected August 2026 figures, USDC accounts for roughly 99.99% of trailing-90-day agentic transfer volume. Ripple and Stellar diluted the USDC monoculture at the governance layer; the settlement asset barely moved. The direction matters more than the decimal: governance diversified faster than volume.
The network underneath
x402.org's dashboard (read September 2026): 75.41M transactions, $24.24M volume, 94.06K buyers, 22K sellers in 30 days. Enormous transaction counts, tiny average values — the sub-cent machine-payment pattern, already running.
Why the roster is the signal
A payment standard only works if competitors build against it. The member list — Visa and Stripe at the same neutral table — is the adoption signal. It deserves a canonical page with receipts, not a press-release rewrite.
Full version with every claim sourced: https://scriptmasterlabs.com/x402-foundation-members (canonical — this dev.to post is the mirror).
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