Ethereum Wallet (EVM) MCP server

The MCP Crypto Wallet EVM server provides Claude with access to Ethereum and EVM-compatible blockchain operations. It enables operations like creating wallets, checking balances, sending transactions, and interacting with smart contracts through a comprehensive set of tools built on ethers.js v5.

Prerequisites

• Node.js (v16 or higher)
• Claude Desktop application

Installation

Using npx (Recommended)

Run the MCP server directly without installation:

npx @mcp-dockmaster/mcp-cryptowallet-evm

Manual Installation

1. Clone the repository:

   git clone https://github.com/dcSpark/mcp-cryptowallet-evm.git
   cd mcp-cryptowallet-evm
   

2. Install dependencies:

   npm ci
   

3. Build the project:

   npm run build
   

Configuration

Environment Variables

The server supports these environment variables:

• PRIVATE_KEY: Optional private key to use when no wallet is explicitly provided

Configure Claude Desktop

1. Open Claude Desktop

2. Navigate to the configuration file:

   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Windows: %APPDATA%\Claude\claude_desktop_config.json
   • Linux: ~/.config/Claude/claude_desktop_config.json

3. Add the MCP server configuration:

{
  "mcpServers": {
    "mcp-cryptowallet-evm": {
      "command": "npx",
      "args": [
        "@mcp-dockmaster/mcp-cryptowallet-evm"
      ]
    }
  }
}

If you installed locally, use this configuration instead:

{
  "mcpServers": {
    "mcp-cryptowallet-evm": {
      "command": "node",
      "args": [
        "/path/to/your/mcp-cryptowallet-evm/build/index.js"
      ]
    }
  }
}

Running Locally

node build/index.js

Usage Examples

After configuration, restart Claude Desktop. Claude will now have access to blockchain tools. Here are some examples of what you can ask Claude to do:

Creating a Wallet

Ask Claude:

Can you create a new Ethereum wallet for me?

Checking a Balance

Ask Claude:

What's the balance of the Ethereum wallet address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?

Sending a Transaction

Ask Claude:

Can you help me send 0.1 ETH to 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?

Available Functionality

Wallet Creation and Management

• Create wallets randomly, from private keys, mnemonics, or encrypted JSON
• Encrypt wallets with passwords

Wallet Properties

• Get wallet addresses, public/private keys, and mnemonics

Blockchain Operations

• Check balances, chain IDs, gas prices
• Get transaction counts
• Call contract methods

Transaction Operations

• Send and sign transactions
• Populate transaction fields

Signing Operations

• Sign and verify messages
• Support for typed data signing (EIP-712)

Provider and Network Operations

• Get blocks, transactions, and receipts
• Access storage and code at addresses
• Resolve ENS names
• Get network information and fees

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "mcp-cryptowallet-evm" '{"command":"npx","args":["@mcp-dockmaster/mcp-cryptowallet-evm"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "mcp-cryptowallet-evm": {
            "command": "npx",
            "args": [
                "@mcp-dockmaster/mcp-cryptowallet-evm"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "mcp-cryptowallet-evm": {
            "command": "npx",
            "args": [
                "@mcp-dockmaster/mcp-cryptowallet-evm"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect