Coinbase-backed artificial intelligence payment standard x402 has launched a marketplace for apps and services to increase the usability of AI agents.
Coinbase product lead Nick Prince said in a video posted to X on Monday that the idea behind the platform, called Agentic.market, was to “give people and their agents access to thousands of services, without the need for API keys.”
Prince said in a separate post that the marketplace is a “shop window for discovering, comparing and using x402 services” and provides access to a wide variety of apps and websites that AI agents can use, such as CoinGecko, Google Flights and the social media site X.
He added that hundreds of thousands of AI agents have executed hundreds of millions of transactions, but users of AI agents “relied on fragmented resources and word of mouth” to find compatible services.
The x402 protocol, launched by Coinbase in May 2025, allows AI agents to make internet payments using stablecoins and is gaining support as many companies believe AI technology will become increasingly involved in trading.
Introducing Agentic(dot)Market, the homepage of the agent economy.
– Follow agentic trading trends
– Discover services your agent can purchase
– Sell your services to agentsThousands of services. No API keys. Powered by x402. https://t.co/dgrNV73MAJ pic.twitter.com/0QU9Bpb3kG
— nick.base.eth 🛡 (@Nick_Prince12) April 20, 2026
Prince said the marketplace has a web interface “where people can browse and evaluate services” and a programming layer that allows AI agents to access the platform to “autonomously search, filter and integrate new capabilities at runtime without a human in the loop.”
The platform provides an AI agent with “skills,” or code for using a service, along with a wallet that allows it to “buy services and also sell services,” Prince added.
Related: Coinbase is testing AI agents that appear on Slack and email
The x402 protocol, named after the rarely used HTTP status code “402 Payment Required,” received support earlier this month from Google, Microsoft and Amazon Web Services, which backed the creation of the x402 Foundation to manage the protocol.
American Express, Mastercard, Visa, Cloudflare, Shopify, Stripe, Circle, Base, Polygon Labs, the Solana Foundation, Thirdweb and KakaoPay also expressed their “original intentions and support” of the foundation.
Coinbase CEO Brian Armstrong said at the time that “there will soon be more AI agents transacting online than humans,” echoing Circle CEO Jeremy Allaire, who said in January that “literally billions of AI agents” will transact on blockchains within three to five years.
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