mcp signer for Gemini CLI

io.github.cryptoapis-io/mcp-signer

Local transaction signing for EVM, UTXO, Tron, XRP, Kaspa, Solana and Tezos — no API calls

client:Gemini CLI transport:stdio runtime:npm

Install mcp signer in Gemini CLI

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

{
  "mcpServers": {
    "mcp-signer": {
      "command": "npx",
      "args": [
        "-y",
        "@cryptoapis-io/mcp-signer"
      ]
    }
  }
}

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