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io.github.daedalus/mcp-pcapy-ng

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MCP server exposing pcapy-ng packet capture functionality

Source code Documentation

What can you do with io.github.daedalus/mcp-pcapy-ng?

  • findalldevs - List all available network interfaces
  • lookupdev - Get the default network device
  • open_live - Open a live network interface for packet capture
  • open_offline - Open a pcap file for reading
  • create - Create a packet capture handle
  • compile - Create a BPF filter program
  • pcap_read - Read packets from a pcap handle
  • pcap_datalink - Get the data link type

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package mcp-pcapy-ng
Claude Code 
claude mcp add mcp-pcapy-ng -- uvx mcp-pcapy-ng==0.1.0
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "mcp-pcapy-ng": {
            "command": "uvx",
            "args": [
                "mcp-pcapy-ng==0.1.0"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. mcp-pcapy-ng
  2. Install
  3. Usage
  4. Available Tools
  5. Development

mcp-pcapy-ng

MCP server exposing pcapy-ng packet capture functionality.

mcp-name: io.github.daedalus/mcp-pcapy-ng

Install

pip install mcp-pcapy-ng

Usage

The MCP server provides tools for network packet capture using pcapy-ng:

from mcp_pcapy_ng import mcp
mcp.run()

Or via command line:

mcp-pcapy-ng

Available Tools

  • findalldevs - List all available network interfaces
  • lookupdev - Get the default network device
  • open_live - Open a live network interface for packet capture
  • open_offline - Open a pcap file for reading
  • create - Create a packet capture handle
  • compile - Create a BPF filter program
  • pcap_read - Read packets from a pcap handle
  • pcap_datalink - Get the data link type
  • pcap_setfilter - Attach a BPF filter
  • pcap_getnonblock - Get non-blocking status
  • pcap_setnonblock - Set non-blocking mode
  • get_dlt_names - Get DLT constant mappings
  • get_pcap_directions - Get direction constant mappings
  • get_constants - Get all constants

Development

git clone https://github.com/daedalus/mcp-pcapy-ng.git
cd mcp-pcapy-ng
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mypy src/

Frequently asked questions

What is io.github.daedalus/mcp-pcapy-ng?

MCP server exposing pcapy-ng packet capture functionality

How do I install io.github.daedalus/mcp-pcapy-ng?

It runs on your machine. In Claude Code: claude mcp add mcp-pcapy-ng -- uvx mcp-pcapy-ng==0.1.0. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.daedalus/mcp-pcapy-ng need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.daedalus/mcp-pcapy-ng open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.daedalus/mcp-pcapy-ng?

It is published by daedalus. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.