Ethereum & EVM Message Signing

local MCP server

Installation

Terminal

claude mcp add signing-mcp-server -- uvx signing-mcp-server

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "signing-mcp-server": {
      "command": "uvx",
      "args": [
        "signing-mcp-server"
      ]
    }
  }
}

Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery

Ethereum & EVM Message Signing is a local MCP server distributed as the pypi package signing-mcp-server.

Run: claude mcp add signing-mcp-server -- uvx signing-mcp-server

Run: codex mcp add signing-mcp-server -- uvx signing-mcp-server

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