Mcp Pcapy Ng
This wraps pcapy-ng to give you packet capture operations through MCP. You get tools to list network interfaces with findalldevs, open live captures with open_live, read from pcap files with open_offline, and apply BPF filters with compile and pcap_setfilter. The usual workflow is opening a capture handle, optionally setting a filter for specific traffic, then reading packets with pcap_read. Reach for this when you need to analyze network traffic or debug protocol issues from within Claude, whether you're working with live interfaces or existing pcap files. It exposes the core pcapy-ng API including non-blocking modes, datalink types, and direction constants for packet filtering.
- tools
- 14
- transport
- STDIO
- last updated
- Apr 4, 2026
Tools
14 toolsPublic tool metadata for what this MCP can expose to an agent.
findalldevsList all available network interfaces
List all available network interfaces
No parameter schema in public metadata yet.
lookupdevGet the default network device
Get the default network device
No parameter schema in public metadata yet.
open_liveOpen a live network interface for packet capture
Open a live network interface for packet capture
No parameter schema in public metadata yet.
open_offlineOpen a pcap file for reading
Open a pcap file for reading
No parameter schema in public metadata yet.
createCreate a packet capture handle
Create a packet capture handle
No parameter schema in public metadata yet.
compileCreate a BPF filter program
Create a BPF filter program
No parameter schema in public metadata yet.
pcap_readRead packets from a pcap handle
Read packets from a pcap handle
No parameter schema in public metadata yet.
pcap_datalinkGet the data link type
Get the data link type
No parameter schema in public metadata yet.
pcap_setfilterAttach a BPF filter
Attach a BPF filter
No parameter schema in public metadata yet.
pcap_getnonblockGet non-blocking status
Get non-blocking status
No parameter schema in public metadata yet.
pcap_setnonblockSet non-blocking mode
Set non-blocking mode
No parameter schema in public metadata yet.
get_dlt_namesGet DLT constant mappings
Get DLT constant mappings
No parameter schema in public metadata yet.
get_pcap_directionsGet direction constant mappings
Get direction constant mappings
No parameter schema in public metadata yet.
get_constantsGet all constants
Get all constants
No parameter schema in public metadata yet.
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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
Details
- Repository
- github.com/daedalus/mcp-pcapy-ng
- Package
mcp-pcapy-ng- Transport
- STDIO
- Registry
- MCP registry, active