MCP Packet Tracer

This project is an MCP server for Cisco Packet Tracer, the network simulation tool used for labs and study. It gives any MCP client, such as Claude Code, Cursor or VS Code, 61 tools to place devices, run cables, assign IP addresses, deploy configurations and verify connectivity, so a network can be described in plain language and built in the simulator. It covers 75 device models and 9 topology templates, and it was verified against Packet Tracer 8.2 and later. The tools are organized by workflow stage: catalog and discovery, planning and validation of a topology, generation and export of scripts and IOS configurations, a live bridge that streams a plan into a running Packet Tracer, and live editing of devices and links. A one shot build tool runs the full pipeline from plan to deployment. The same site also presents PacketSmith, a separate terminal agent for network labs that runs on top of the server and draws the topology live in a side panel as tools run. It supports many model providers as well as the Claude CLI. Both tools are open source under the MIT license, the server is written in Python and PacketSmith in TypeScript, and the vendor states they are not affiliated with Cisco. Both are free, and the site publishes no paid plans or pricing page.