Ethereum & EVM Message Signing for Gemini CLI

io.github.nirholas/signing-mcp-server

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

client:Gemini CLI transport:stdio runtime:pypi

Install Ethereum & EVM Message Signing in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

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

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs