Coinbase-backed AI payments standard x402 has launched a new marketplace aimed at expanding the capabilities of AI agents by connecting them with apps and services.
In a video shared on X on Monday, Coinbase product lead Nick Prince said the platform—called Agentic.market—is designed to give “humans and their agents access to thousands of services, with zero API keys required.”
In a separate post, Prince described the platform as a storefront for discovering, comparing and using x402-powered services. It offers access to a wide range of apps and websites that AI agents can interact with, including CoinGecko, Google Flights and X.
He noted that while hundreds of thousands of AI agents have already processed hundreds of millions of dollars in transactions, users have largely depended on fragmented sources and word-of-mouth to find compatible tools.
The x402 protocol, introduced by Coinbase in May 2025, enables AI agents to make online payments using stablecoins and has been gaining traction as companies increasingly explore the role of AI in digital commerce.
Nick Prince said the marketplace features a web interface that allows humans to browse and evaluate services, alongside a programmable layer that enables AI agents to “search, filter, and integrate new capabilities autonomously at runtime without a human in the loop.”
He added that the platform equips agents with “skills”—essentially code instructions for using specific services—along with built-in wallets that let them both purchase and offer services independently.
The x402 protocol, backed by Coinbase, takes its name from the rarely used HTTP “402 Payment Required” status code. Earlier this month, major tech players including Google, Microsoft and Amazon Web Services supported the formation of the x402 Foundation to help govern the standard.
Other companies and organizations—such as American Express, Mastercard, Visa, Cloudflare, Shopify, Stripe, Circle, Polygon Labs, Solana Foundation, Thirdweb and KakaoPay—have also expressed initial support for the initiative.
Brian Armstrong said at the time that AI agents could soon outnumber humans in online transactions. Similarly, Jeremy Allaire predicted earlier this year that “billions of AI agents” could be transacting on blockchain networks within the next three to five years.
