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mcp/harbor
Gemini CLI

web3agent for Gemini CLI

io.github.apegurus/web3agent

Web3 MCP proxy for AI agents: DeFi swaps, bridges, market data, wallets, and gated writes.

client:Gemini CLI transport:stdio runtime:npm

Install web3agent 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": {
    "web3agent": {
      "command": "npx",
      "args": [
        "-y",
        "web3agent"
      ],
      "env": {
        "CHAIN_ID": "<CHAIN_ID>",
        "CONFIRM_WRITES": "<CONFIRM_WRITES>",
        "ETHERSCAN_API_KEY": "<ETHERSCAN_API_KEY>",
        "ZEROX_API_KEY": "<ZEROX_API_KEY>",
        "COINGECKO_API_KEY": "<COINGECKO_API_KEY>",
        "CCXT_CONFIG_PATH": "<CCXT_CONFIG_PATH>",
        "OWS_PASSPHRASE": "<OWS_PASSPHRASE>"
      }
    }
  }
}

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

web3agent in other clients

web3agent MCP server