Base MCP launched on May 26, 2026, enabling AI agents to execute onchain actions on Base using natural language prompts. The system connects six DeFi protocols at launch, including Uniswap, Morpho, and Avantis, and supports lending, swaps, liquidity pools, perpetual trading, and token launches. Users can initiate portfolio tracking, fund transfers, token swaps, and DeFi interactions directly from AI interfaces without leaving the chat environment. OAuth 2.1 authenticates the connection to a user’s Base Account, while the server holds no private keys and cannot execute transactions by itself. For sensitive actions, the agent generates a link to the Base App, where users review simulated asset changes and confirm or cancel before any onchain execution. Developers can extend functionality via custom skill plugins using markdown specifications that call external APIs and hand off unsigned transactions for approval. Base MCP also supports x402 micropayments and balance and transaction history lookups across other EVM-compatible chains, building on Coinbase Developer Platform components such as Agentkit, embedded wallets, onramp tooling, and x402 payments.
"Base MCP launched on May 26, 2026, letting AI agents like Claude execute onchain actions via natural language prompts. Base MCP connects 6 decentralized finance (DeFi) protocols at launch, including Uniswap, Morpho, and Avantis, without exposing private keys. Coinbase's Base positions the tool as foundational infrastructure for an agentic economy built on its layer two (L2) network. The tool allows users of AI interfaces, including Claude, ChatGPT, and Cursor to initiate blockchain actions through natural language prompts."
"Base MCP uses OAuth 2.1 to authenticate the connection between an AI agent and a user's Base Account. The server holds no private keys and cannot execute transactions on its own. When an agent proposes a sensitive action such as a token transfer or swap, it generates a link that opens the Base App. The user reviews simulated asset changes, then confirms or cancels the transaction before anything executes onchain."
"Six DeFi protocols are available at launch through ecosystem skill plugins. Morpho and Moonwell cover lending markets, Uniswap and Aerodrome handle swaps and liquidity pools, Avantis supports perpetual trading, and Bankr and Virtuals enable token launches and agent tokens. Developers can extend the system by writing custom skill plugins using markdown specifications. The specs guide agents on how to call external APIs and hand off unsigned transactions to the user for approval."
"Base MCP also supports payments for x402-enabled services, a micropayment standard, along with balance and transaction history lookups across other EVM-compatible chains. The launch builds on existing Coinbase Developer Platform infrastructure, including Agentkit, embedded wallets, onramp tooling, and x402 payments. A separate Payments MCP product from Coinbase CDP, released earlier this year."
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