Coinbase is giving AI agents their own crypto wallets. The new Base MCP, a Model Context Protocol server, connects AI clients directly to Base Account smart wallets. This allows them to check balances, swap tokens, sign messages, and execute DeFi transactions without custom code.
The system is non-custodial - the MCP server never holds private keys. Every transaction requires user sign-off.
Setup involves connecting to the MCP server, installing the skill package, authenticating via OAuth 2.1, and testing prompts. Compatible AI clients include Claude, ChatGPT, Cursor, and Codex.
Base MCP supports sending native tokens, transferring ERC-20 tokens, executing batched contract calls, and processing micropayments via the x402 protocol using USDC. Transactions are gasless or cost sub-penny fees.
Integrations with Uniswap and Morpho enable swaps and lending directly through AI prompts. A user can simply instruct: "Swap 100 USDC for ETH on Uniswap" and approve the resulting transaction.
This builds on Coinbase's earlier Agentic Wallets initiative, signaling a push toward AI-driven crypto interactions. The Model Context Protocol has gained traction since 2024, with Phantom wallet also developing its own MCP initiatives.
Security concerns include prompt injection attacks, but the user-approval requirement provides a critical safeguard.