What companies use x402?
Founding x402 Foundation participants (April 2026) include Coinbase, Cloudflare, Stripe, Google, Microsoft, AWS, American Express, Visa, Mastercard, Adyen, Shopify, Circle, Polygon Labs, Solana Foundation, Sierra, KakaoPay, PPRO, Fiserv Merchant Solutions, Merit Systems, thirdweb, Ampersend.ai, and Base. Public production deployments include AWS Bedrock AgentCore, Coinbase Agent.market, Cloudflare's pay-per-crawl, Bankr x402 Cloud, AEON on BNB Chain, Utexo (USDT settlement), Zerion API, AgentMail, and Venice Skills. Hundreds of indie builders run x402 endpoints via the public catalog.