Coinbase broadens agent platform to stocks, micropayments

Coinbase has expanded its Coinbase for Agents platform to include US stocks and exchange-traded funds, while also introducing micropayments to allow AI agents to trade a wider range of assets and access necessary data or services. This September 22 update follows a June launch that connected AI agents to customers' Coinbase accounts for trading, payments, and automated financial workflows.

The new Model Context Protocol (MCP) now grants agents access to thousands of US stocks and ETFs, along with crypto assets and derivatives. Equities transactions are facilitated through Coinbase Capital Markets Corp, an SEC-registered broker-dealer, with clearing and custody provided by Apex Fintech Solutions. Coinbase emphasizes that users maintain control through restrictions on what agents can access and trade.

The x402 open payment protocol, built on HTTP 402 "Payment Required" status code, enables software to make stablecoin payments for services like market data, AI models, or computing resources directly upon authorization. This development aims to make autonomous software economically viable without granting it unrestricted financial authority.

Coinbase's agent strategy has progressed through products like AgentKit, Agentic Wallets, and Coinbase for Agents, which connect agents to customer accounts via MCP and a command-line interface. The company's 2026 priorities include expanding the "everything exchange," scaling stablecoins and payments, and advancing onchain adoption.