How do I install Tracerlab?

Tracerlab is a local plugin. Install it using PyPI package: tracerlab and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Tracerlab safe to use?

Yes. Tracerlab passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Tracerlab?

Tracerlab uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Tracerlab MCP Server

by Atharv Santosh

Developer ToolsLow Risk10.0MCP RegistryLocal

Free

Server data from the Official MCP Registry

Build and verify Cisco Packet Tracer networks from an AI agent.

About

Build and verify Cisco Packet Tracer networks from an AI agent.

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (0 strong, 2 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry.

4 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

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How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-atharv-santosh-tracerlab": {
      "args": [
        "tracerlab"
      ],
      "command": "uvx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Tracerlab

MCP server for Cisco Packet Tracer 9. Lets Claude Code (or any MCP client) build networks in a running Packet Tracer: add devices, cable them, push IOS configs, address everything, set up routing, ping, and find what's broken. It can also read and write .pkt files without Packet Tracer open.

Building a 3 router OSPF ring, cabling it, addressing it and pinging across it

Twelve devices, twelve cables, OSPF across the ring and 6/6 pings, from one prompt.

There are also some ready-made labs (router on a stick, OSPF/EIGRP/RIP topologies, NAT, HSRP, EtherChannel, IPv6) that build in one call.

Install

Needs uv and Packet Tracer 9.

claude mcp add packet-tracer -- uvx --from tracerlab packet-tracer-mcp

Cursor (~/.cursor/mcp.json), VS Code (.vscode/mcp.json) and Codex take the same command:

{
  "mcpServers": {
    "packet-tracer": { "command": "uvx", "args": ["--from", "tracerlab", "packet-tracer-mcp"] }
  }
}

Then install the Packet Tracer side once:

uvx tracerlab install-extension

Restart Packet Tracer and answer Yes when it asks about the new script module. A small "PT-MCP Bridge" window shows up and goes green once the MCP server is running.

If something isn't connecting, run uvx tracerlab doctor.

Use

Open Packet Tracer, start Claude Code and ask for things like:

build a 3 router OSPF ring with a PC on each LAN and ping everything
set up router on a stick with VLANs 10, 20, 30 and DHCP
what's wrong with this network
show me the running config on R1

examples/enterprise-two-site.pkt is a bigger network built entirely through the tools.

Tests

uv run pytest

mcp-name: io.github.atharv-santosh/tracerlab

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4.8

Local

MCP Marketplace

Free

by mcp-marketplace · Developer Tools

Search and install MCP servers from inside your AI client.