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mcp/harbor
Gemini CLI

EVM Wallet Signer for Gemini CLI

io.github.nikicat/mcp-wallet-signer

Route EVM transactions to browser wallets (MetaMask, etc.) for signing via EIP-6963

client:Gemini CLI transport:stdio runtime:npm

Install EVM Wallet Signer in Gemini CLI

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-wallet-signer": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-wallet-signer"
      ],
      "env": {
        "EVM_MCP_PORT": "<EVM_MCP_PORT>",
        "EVM_MCP_DEFAULT_CHAIN": "<EVM_MCP_DEFAULT_CHAIN>"
      }
    }
  }
}

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

EVM Wallet Signer in other clients

EVM Wallet Signer MCP server