Web3 MCP Server

@EmanuelJr

About Web3 MCP Server

Web3 MCP server for EVM chains

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "web3-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "web3-mcp-server",
        "--client",
        "claude"
      ]
    }
  }
}

Tools

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Overview

What is Web3 MCP Server?

A Model Context Protocol (MCP) server implementation for Web3 interactions on EVM-compatible chains. It enables AI assistants to interact seamlessly with blockchain networks, fetching token balances, calling smart contract functions, and transferring native or ERC-20 tokens.

How to use Web3 MCP Server?

Install via Smithery (npx -y @smithery/cli install web3-mcp-server --client claude), or configure Claude Desktop with npx or Docker using the provided JSON settings. An optional PRIVATE_KEY environment variable can be set for signing transactions.

Key features of Web3 MCP Server

Fetch token balances across multiple EVM chains
Call smart contract read and write functions
Transfer native and ERC-20 tokens
Support for multiple EVM-compatible blockchains

Use cases of Web3 MCP Server

Check wallet token balances on Ethereum, BSC, or Polygon
Execute smart contract functions via natural language prompts
Automate token transfers through AI assistants
Interact with DeFi protocols programmatically

FAQ from Web3 MCP Server

What EVM chains are supported?

The server supports multiple EVM-compatible chains, but specific chain names are not listed in the provided documentation.

Is a private key required to use the server?

No, the PRIVATE_KEY environment variable is optional. It is needed only when signing transactions (e.g., for token transfers or smart contract writes).

How do I install Web3 MCP Server for Claude Desktop?

You can install it automatically via Smithery with npx -y @smithery/cli install web3-mcp-server --client claude, or manually add the npx or Docker configuration to your Claude Desktop settings.

Can I run Web3 MCP Server with Docker?

Yes, use the Docker image emanueljr/web3-mcp-server. The README provides a complete configuration example for Docker-based deployment.

What license is the project under?

The project is licensed under the MIT License.

Frequently asked questions

What EVM chains are supported?

The server supports multiple EVM-compatible chains, but specific chain names are not listed in the provided documentation.

Is a private key required to use the server?

No, the `PRIVATE_KEY` environment variable is optional. It is needed only when signing transactions (e.g., for token transfers or smart contract writes).

How do I install Web3 MCP Server for Claude Desktop?

You can install it automatically via Smithery with `npx -y @smithery/cli install web3-mcp-server --client claude`, or manually add the npx or Docker configuration to your Claude Desktop settings.