EVM Wallet Signer MCP Server

by nikicatio.github.nikicat/mcp-wallet-signerv0.1.3

Non-custodial EVM wallet that routes transactions to browser wallets like MetaMask for signing, with explicit user approval for every action via EIP-6963.

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Active22d ago

Install EVM Wallet Signer MCP server

claude mcp add wallet-signer -- npx -y mcp-wallet-signer

{
  "mcpServers": {
    "wallet-signer": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-wallet-signer"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "wallet-signer": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-wallet-signer"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "wallet-signer": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-wallet-signer"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "wallet-signer": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-wallet-signer"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
EVM_MCP_PORT	—	—	HTTP server port for the browser approval UI (default: 3847)
EVM_MCP_DEFAULT_CHAIN	—	—	Default EVM chain ID (default: 1 for Ethereum mainnet)