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mcp/harbor
Claude Desktop

etherscan mcp for Claude Desktop

io.github.mrfentmen/etherscan-mcp

Query the Etherscan v2 API: ETH balance, transactions, ERC-20 transfers.

client:Claude Desktop transport:stdio runtime:npm

Install etherscan mcp in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json 

{
  "mcpServers": {
    "etherscan-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/etherscan-mcp"
      ]
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

etherscan mcp in other clients

etherscan mcp MCP server