Over the past few months, Coinbase and Ethereum have rolled out a series of infrastructure announcements that, taken together, reveal something bigger: a coordinated push to realize Ethereum’s potential to be the default rails for AI agents to transact and collaborate. While the nonstop crypto news cycle makes it easy to see these as isolated developments, they're actually interlocking pieces of a new foundation for machine-driven commerce. This week’s announcements of the x402 Foundation and Cloudflare's NET Dollar complete this picture, creating a full stack that could fundamentally change how AI agents interact with the web.