Coinbase has expanded Coinbase for Agents from a crypto-focused service into a unified trading platform for AI agents, adding U.S. stocks, ETFs and derivatives to existing crypto spot markets. Agents can connect through Model Context Protocol (MCP), an AI application integration standard, or Command Line Interface (CLI), a text-based developer access method. Users set spending caps, permitted asset classes and other permissions, limiting agents to defined operating parameters. Equity trades run through Coinbase Capital Markets Corp., a FINRA (U.S. securities industry regulator) and SIPC (investor protection organization) member, while Apex Fintech Solutions provides clearing and custody. Zero-commission stock trading includes fractional shares from $1 and is available 24 hours a day, five days a week, while crypto markets remain available continuously. Coinbase also uses its x402 micropayments protocol to let agents pay directly from their trading balance for market data and other services. The protocol has processed more than 230 million transactions totaling over $54 million. Coinbase for Agents launched on June 11, 2026, with crypto spot and derivatives trading; the September expansion into equities and ETFs marks its second major phase and supports thousands of U.S. stocks and ETFs. The broader offering fits Coinbase’s internally named Everything Exchange strategy and places the company alongside crypto exchanges such as Binance and Kraken as well as traditional brokerages including Schwab and Fidelity. Coinbase says user-defined guardrails are intended to keep retail investors in control without requiring them to operate the platform manually, while the combined brokerage and crypto infrastructure could simplify institutional due diligence.