Base Rolls Out MCP Gateway for AI Agents and Onchain Commerce

TLDR

• Base MCP connects AI clients with Base Accounts for onchain actions.
• Users can use natural language prompts to prepare swaps, transfers and DeFi activity.
• The system is non-custodial and does not give agents access to private keys.
• Launch partners include Uniswap, Morpho, Moonwell, Aerodrome and Virtuals.
• Every transaction must be reviewed and approved through the Base Account interface.

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Base, the Coinbase-incubated Ethereum layer-2 network, has launched Base MCP, a gateway that connects AI interfaces with Base Account wallets and allows users to carry out onchain actions through natural language prompts.

The new system was announced on May 26 and is designed to work with AI clients that support the Model Context Protocol, including Claude, ChatGPT, and Cursor. MCP is an open standard introduced by Anthropic in 2024 to help AI systems connect with external tools and data sources through a common framework.

Base said the gateway allows supported AI agents to interact with blockchain applications while keeping users in control of transaction approval. Through Base MCP, users can request actions such as token swaps, fund transfers, portfolio checks, lending activity, and interaction with decentralized applications built on Base.

Introducing Base MCP

Your agent’s new gateway to Base

→ Connect an agent to your Base Account
→ Enable it to swap, trade, and manage your portfolio
→ Use plugins from leading apps on Base

The next stage of the agentic onchain economy pic.twitter.com/w8Jbj3JuoL

— Base (@base) May 26, 2026

The launch adds another connection point between artificial intelligence and crypto infrastructure, with Base positioning the tool as a way to make onchain activity easier for users who may not want to move between several apps or manually build each transaction.

Base MCP links AI clients with smart wallets

Base MCP acts as a secure bridge between AI interfaces and Base Accounts on the Base App. Instead of requiring users to open separate crypto applications for every action, the gateway allows an AI client to understand a prompt, prepare a transaction request, and send it to the user’s Base Account for review.

The system is non-custodial. Base said the MCP server does not access users’ private keys at any point. When an AI agent requests a transaction, the call is created and stored as a pending request. The user then retrieves the request through Base Account and decides whether to sign it.

Authentication runs through OAuth 2.1, a standard used across many web login systems. Base said the same approach is used by Sign in with Google and the Base App. The structure is intended to give AI agents access to approved wallet actions without giving them custody of funds.

Every transaction requires explicit user approval. This means an AI agent cannot independently move assets from a user’s wallet without a signed confirmation through the Base Account interface.

Uniswap, Morpho and Moonwell join launch

Base MCP is launching with integrations across several DeFi and crypto applications. The named launch partners include Uniswap for token swaps, Morpho and Moonwell for lending, Aerodrome for liquidity infrastructure, Avantis for perpetual trading, Bankr for portfolio management, and Virtuals for AI agent tokenization.

These partners provide what Base calls skill plugins. The plugins are modular functions that compatible AI clients can call when a user asks for a specific onchain action. For example, a user could request a token swap through Uniswap or a lending transaction through Morpho, with the AI client preparing the workflow through the MCP gateway.

The plugin model also gives third-party developers a path to add more services over time. Instead of Base building every integration directly, protocols can create their own supported functions for AI clients that use the MCP standard.

For users, the main change is that common crypto actions may be requested in plain language. A prompt could ask an AI interface to check a wallet balance, prepare a transfer, or interact with a Base-based application. The final signing step remains with the user.

Security model focuses on user approval

Base said MCP may reduce some phishing and domain-hijacking risks linked to web-based crypto apps. In many wallet-draining attacks, users are directed to fake websites or compromised front ends that generate malicious transaction requests.

With Base MCP, the transaction is built locally through the agent framework rather than pulled from an outside website that could be copied or taken over. The request still appears in Base Account for the user to inspect before signing.

The security model does not remove all risks. Users still need to review the transaction details before approval, especially when interacting with DeFi protocols, volatile tokens, or leveraged products. The framework also depends on how each AI client and skill plugin is implemented.

The launch comes as crypto developers test new ways to connect AI agents with payment systems, trading tools, and wallet infrastructure. Base MCP brings that trend into the Coinbase-backed layer-2 ecosystem by giving AI clients a standardized route to onchain actions.