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MCP Network Sentinel

MCP Network Sentinel

Local
github.com/takeashipDeveloper Tools0Updated 82w ago
Repository

About MCP Network Sentinel

MCP Network Sentinel monitors network communications from MCP servers, helping developers review third-party servers for suspicious outbound activity. It runs a server command in a monitored environment and records connection details.

Key features

  1. 01Monitor MCP server network activity
  2. 02Log connections, HTTP/HTTPS requests, and DNS lookups
  3. 03Write logs to console or JSON file
  4. 04Run a server in a monitored environment

Use cases

  1. 01Review outbound activity from third-party MCP servers
  2. 02Save network records for security audits

MCP support

It monitors network communications initiated by MCP servers and records details such as destination, port, and protocol.

#network-monitoring#security#mcp-servers

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "network-sentinel": {
      "command": "npx",
      "args": [
        "-y",
        "@takeaship/mcp-network-sentinel"
      ]
    }
  }
}
Run commandnpx -y @takeaship/mcp-network-sentinel

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npm@takeaship/mcp-network-sentinel

Tools

No tool list yet

Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.

Details

From the project README

MCP Network Sentinel

A network monitoring tool for MCP servers that logs all network activities to help identify potential security issues.

Background

When using third-party MCP servers to access confidential data, there's a risk that the MCP server might transmit your data or access keys to external sources. This tool monitors all network communications from the MCP server to help identify any suspicious activities.

Installation

npm install -g @takeaship/mcp-network-sentinel

Usage

npx @takeaship/mcp-network-sentinel "your-mcp-server-package arg1 arg2" --output=network-logs.json

Features

  • Monitors all network activity from MCP servers
  • Logs connection attempts, HTTP/HTTPS requests, and DNS lookups
  • Writes logs to console and optionally to a JSON file
  • Runs your MCP server within a monitored environment

How It Works

MCP Network Sentinel uses Node.js module interception to hook into the network-related modules and log all outgoing connections. It works by:

  1. Intercepting calls to network modules (net, tls, http, https, dns)
  2. Logging connection details including destination, port, and protocol
  3. Running your MCP server command in a monitored environment
  4. Saving logs to a JSON file if specified

Options

  • -o, --output <file> - Save network logs to a specified JSON file

License

MIT

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