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mcp/harbor
Gemini CLI

q402 mcp for Gemini CLI

io.github.quackai-org/q402-mcp

Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default.

client:Gemini CLI transport:stdio runtime:npm

Install q402 mcp 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": {
    "q402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@quackai/q402-mcp"
      ],
      "env": {
        "Q402_TRIAL_API_KEY": "<Q402_TRIAL_API_KEY>",
        "Q402_MULTICHAIN_API_KEY": "<Q402_MULTICHAIN_API_KEY>",
        "Q402_PRIVATE_KEY": "<Q402_PRIVATE_KEY>",
        "Q402_AGENTIC_PRIVATE_KEY": "<Q402_AGENTIC_PRIVATE_KEY>",
        "Q402_ENABLE_REAL_PAYMENTS": "<Q402_ENABLE_REAL_PAYMENTS>",
        "Q402_MAX_AMOUNT_PER_CALL": "<Q402_MAX_AMOUNT_PER_CALL>",
        "Q402_ALLOWED_RECIPIENTS": "<Q402_ALLOWED_RECIPIENTS>",
        "Q402_RELAY_BASE_URL": "<Q402_RELAY_BASE_URL>",
        "Q402_AGENT_WALLET_ADDRESS": "<Q402_AGENT_WALLET_ADDRESS>",
        "Q402_API_KEY": "<Q402_API_KEY>",
        "Q402_WALLET_ID": "<Q402_WALLET_ID>",
        "Q402_BUILDER_CODE": "<Q402_BUILDER_CODE>"
      }
    }
  }
}

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

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