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mcp/harbor
Claude Desktop

mcp for Claude Desktop

io.github.2s-io/mcp

575+ agent tools: data, AI gateway, storage/queues/watchers. x402 USDC, no keys, usage billing.

client:Claude Desktop transport:stdio runtime:npm

Install mcp in Claude Desktop

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

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

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@2sio/mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
      }
    }
  }
}

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

mcp in other clients

mcp MCP server