Which integrations are available for this server?

Integrates with Cisco Packet Tracer 9 to let agents build network topologies, configure devices and servers, push IOS configurations, and read real command output (e.g. show ip route, ping), with additional support for DHCP pools, DNS records, HTTP pages, and server services.

How do I use packet-tracer?

This server does not currently have a deployable release on Glama. Follow the repository's setup instructions to install and configure it for your MCP client, including any required credentials and local dependencies.

packet-tracer

by Rohithadzero

Overview Schema Source Related Servers Discussions Admin

Python

Local

cisco-pt-mcp-plus

REST + MCP gateway for Cisco Packet Tracer 9. It's a small patch to the cisco-pt-mcp script module plus a Python gateway. Together they let an AI agent (or curl, or a script) configure servers and read real output from a running Packet Tracer instead of just building topologies.

 Claude / Cursor / any MCP client          curl / Python scripts
            │ stdio                                 │ HTTP
            ▼                                       ▼
   ptgateway.mcp_proxy  ──HTTP──►  ptgateway (aiohttp, 127.0.0.1:7532)
                                     │  REST  /api/pt/tool/<name>
                                     │  Socket.IO (cisco-pt-mcp wire protocol)
                                     ▼
                     Packet Tracer ── patched cisco-pt-mcp module
                                       userfunctions.js + ptEval(code)
                                       interface.js  → MCP_URL :7532

Why

The stock cisco-pt-mcp module exposes 18 fixed functions (add devices, cable, push IOS config, send a simulation PDU). That covers building a lab, but not configuring or checking one:

Needed	Stock cisco-pt-mcp	This repo
Read `show ip route` / `show access-lists` output	✗ (`configureIosDevice` returns no output)	`iosExec`
Real `ping` / `telnet` / `ssh` / `nslookup` output from a PC	✗ (only simulation PDUs, results garbled in PT 9)	`pcCommand`, `pcSession`
Server-PT: DHCP pools, DNS records, web pages, service on/off	✗	`setDhcpPool`, `addDnsRecord`, `setHttpPage`, `setServerService`
Renew a DHCP lease and get the address	✗	`renewDhcp`, `getHostIp`
Open a page in a PC's browser	✗	`httpGet`
Anything else in PT's script API (open/save `.pkt`, …)	✗	`ptEval`
Several clients share one PT (MCP + scripts + curl)	one MCP process owns PT	one gateway, REST for everyone

The trick: add one generic function, ptEval(code), to the plugin. It runs a JS function body inside PT's script engine. Every new tool is then a short JS snippet built in Python (ptgateway/tools.py), with no more plugin edits per feature.

Built while automating a 4-design hospital network project in PT 9.0.1 (D0 flat → D3 micro-segmented). The PT 9 surprises found along the way are in docs/PT9-NOTES.md.

Related MCP server: mcp-gateway

Quick start

# 1. Python side
git clone https://github.com/<you>/cisco-pt-mcp-plus && cd cisco-pt-mcp-plus
python -m venv .venv && .venv/Scripts/pip install -e .      # Linux/macOS: .venv/bin/pip
python -m ptgateway                                           # or ./run.ps1 / ./run.sh

# 2. Packet Tracer side (one time): patch 2 files of the cisco-pt-mcp module
#    -> docs/INSTALL-PLUGIN.md   (Info tab -> Save, then Stop/Start the module)
#    then: Extensions -> Packet Tracer MCP   => "connected"

# 3. Check
curl http://127.0.0.1:7532/api/pt/status

Use it from an MCP client

claude mcp add packet-tracer -- <path-to>/.venv/Scripts/python -m ptgateway.mcp_proxy

The proxy lists all 34 tools (18 stock + 16 new) and forwards each call to the gateway. PTGATEWAY_URL overrides the default http://127.0.0.1:7532.

Use it from code

curl -X POST http://127.0.0.1:7532/api/pt/tool/iosExec \
     -H "content-type: application/json" \
     -d '{"deviceName":"R1","command":"show ip route"}'

import json, urllib.request
def pt(tool, **args):
    r = urllib.request.urlopen(urllib.request.Request(
        f"http://127.0.0.1:7532/api/pt/tool/{tool}", json.dumps(args).encode(),
        {"content-type": "application/json"}), timeout=180)
    return json.loads(r.read())

print(pt("pcCommand", deviceName="PC0", command="ping 10.0.0.1")["result"]["output"])

More: examples/rest_examples.sh, examples/ping_sweep.py.

Tools

New (via ptEval): ptEval, iosExec, pcCommand, pcSession, httpGet, renewDhcp, getHostIp, listDevices, setServerService, setDhcpPool, listDhcpPools, removeDhcpPool, addDnsRecord, listDnsRecords, setHttpPage, probeProcesses.

Stock (forwarded): addDevice, addModule, addLink, removeDevice, removeLink, renameDevice, moveDevice, setPower, configurePcIp, configureIosDevice, getNetwork, getDeviceInfo, setSimulationMode, getSimulationStatus, stepSimulation, sendPdu, getPduResults, getCommandLog.

Arguments for each tool are listed in docs/TOOLS.md.

Layout

ptgateway/
  server.py          aiohttp app: /api/pt/status, /api/pt/tools, POST /api/pt/tool/{name}
  bridge.py          Socket.IO server speaking the cisco-pt-mcp wire protocol (one call at a time)
  tools.py           16 composite tools = JS snippets sent through ptEval
  mcp_proxy.py       stdio MCP server -> REST
  legacy_schemas.py  the 18 stock tool schemas (from cisco-pt-mcp)
  selftest.py        fake PT plugin + REST round-trip checks (no Packet Tracer needed)
plugin/              the full module source; only userfunctions.js and interface/interface.js differ from upstream
docs/                INSTALL-PLUGIN.md, TOOLS.md, PT9-NOTES.md
examples/            curl + Python examples

Test without Packet Tracer

python -m ptgateway --port 9532 &
PTGATEWAY_URL=http://127.0.0.1:9532 python -m ptgateway.selftest   # 7 PASS lines

Security

ptEval runs arbitrary JavaScript inside Packet Tracer, and the gateway has no auth. Keep it on loopback (the default). It warns if you bind to anything else. Don't expose port 7532.

Other projects

If you need a full topology generator with ~80+ tools, use Mats2208/MCP-Packet-Tracer. It covers server DHCP/DNS/HTTP, PC commands and a raw-JS escape hatch on its own extension. This repo is the small option: if you already use cisco-pt-mcp, replace two files and you get output reading and server/service control, plus the PT 9 notes. See also caixax/packet-tracer-mcp and cleonte/MCP_Packet_Tracer.

Credits & license

MIT. plugin/, ptgateway/legacy_schemas.py and the wire protocol in ptgateway/bridge.py come from cisco-pt-mcp © 2026 Muhammad Balawal (MIT). Cisco and Packet Tracer are trademarks of Cisco Systems, Inc. Not affiliated with Cisco.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

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