Base Debuts Base MCP to Let ChatGPT-Style Agents Propose Onchain Transactions

On May 30, 2026, Coinbase-backed Ethereum layer-2 network Base introduced Base MCP, a tool that lets AI models such as ChatGPT and Claude propose actions on a user's Base account. The system supports swaps, balance checks, transfers, and dApp interactions, while requiring the user to approve or reject each transaction in a separate wallet flow. Base said the agents cannot access private keys or execute transactions on their own.