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Packet Tracer MCP logo
Health: ActiveRecent health check succeeded.Last checked 9/22/2026, 5:16:39 PM

Packet Tracer MCP

User RatingsBe the first to rate and review this MCP server! Enrichment pendingWe haven’t run our AI enrichment pass on this listing yet, so the overview, use cases, and FAQ below may be sparse or missing. We work through the catalog over time — check back soon.
View Repository11 GitHub StarsTotal stargazers on GitHub for the source repository (11 stars).Visit Website

MCP server for Cisco Packet Tracer 9 — live IOS, OSPF, BGP, NAT, VLAN, VoIP, QoS, IPv6, wireless.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.

Manual Client & Custom JSON ConfigExpand JSON â–¾
No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for packet-tracer-mcp, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.
Install Directory Badge Claim listing Alternatives💻 More in Developer Tools

Documentation Overview

packet-tracer-mcp

Version Status Repo status License

Packet Tracer Bun TypeScript

CI Tests MCP tools Last commit PRs welcome

Servidor Model Context Protocol para controlar Cisco Packet Tracer 9.0 desde fuera. Una extensión propia se cuelga del editor de PT, abre un bridge HTTP local y desde ahí el servidor MCP llama a la API IPC nativa de PT para crear topologías, configurar routers, lanzar simulaciones, etc. Escrito en TypeScript sobre Bun.

[!WARNING] Proyecto experimental. Es la versión 0.1.0, hecha en mis ratos libres como experimento personal. Funciona contra PT 9.0.0.0810 en mi PC y pasa los smoke tests, pero no la consideres lista para producción. Espera bugs, cambios de API y cosas que se rompen al actualizar PT. Si te animas a probarla, abre issues con lo que veas.

Demo: el MCP construye una topología en Packet Tracer 9

Demo acelerada x15: el cliente MCP lanza una receta y el canvas de Packet Tracer 9 se va llenando solo (devices, cableado, configuración).

Autor: Juan Cordero Pascual · Licencia: MIT Idiomas: español (este archivo) · English


Tabla de contenidos

  • Por qué otro MCP de Packet Tracer
  • Filosofía: canvas-first
  • Requisitos
  • Arranque rápido
    • Conectar un cliente MCP
    • Compilar a binario único
    • Tests
    • Recorrido end-to-end
  • Capacidades
  • Recetas incluidas
  • Configuración
  • Documentación
  • FAQ
  • Estructura del proyecto
  • Estado

Por qué otro MCP de Packet Tracer

Los proyectos para PT 6.x–8.x se apoyaban en librerías JS cargadas por una extensión firmada de terceros. PT 9.0 cerró ese camino: los App Meta Files (.pta) ahora tienen que ir firmados con ECDSA por Cisco, así que ningún proyecto open-source puede entregar uno. La alternativa que queda es hablar con la webview de PT desde fuera, y eso es lo que hace este servidor:

  • Hay una extensión .pts propia que se instala desde el menú Extensions de PT. Lo único que hace es arrancar un bucle de polling contra el bridge HTTP local.
  • Cuando el servidor MCP necesita escribir, llama a la API IPC nativa de PT directamente: cosas como ipc.appWindow().getActiveWorkspace().getLogicalWorkspace().addDevice(...) o getDevice(...).getCommandLine().enterCommand(...). Sin librerías intermedias, sin JS opaco copiado de otros sitios.
  • Todo el JS que termina ejecutándose en el Script Engine de PT lo genera este repo. Si quieres saber qué se está mandando, está en src/ipc/.

Filosofía: canvas-first

Otras herramientas mantienen un objeto "plan" en memoria, lo validan y al final lo vuelcan al simulador. Aquí no funciona así:

  • No hay ningún TopologyPlan en memoria. Lo que hay en PT es lo que hay; el plan es el canvas.
  • Cada receta vuelve a leer un snapshot del canvas antes de actuar. Si la lanzas dos veces sobre un canvas a medio construir, la segunda vez termina lo que faltaba en lugar de duplicar dispositivos. Sale idempotente sin tener que pensarlo.
  • La validación se hace contra el canvas vivo, no contra una estructura interna. Cuando algo falla (IPs duplicadas, peers en subredes distintas, un router apagado) lo ves directamente en PT, no en un grafo abstracto.
  • La persistencia guarda snapshots, no planes. Volver atrás significa comparar el canvas actual con un dump anterior y ver qué ha cambiado. No hay rehidratación mágica.

Si quieres el detalle, está en docs/ARCHITECTURE.md.


Requisitos

  • Cisco Packet Tracer 9.0 (macOS, Windows o Linux).
  • Bun >=1.2. Con Node solo no vale: el código es TypeScript y se ejecuta directamente con Bun, sin paso previo de compilación.
  • La extensión mcp-bridge.pts instalada en PT. Viene en el repo en extension/dist/.

[!TIP] ¿Por qué Bun y no Node? Bun ejecuta .ts nativamente, arranca en milisegundos y trae fetch, HTTP y test runner de serie sin instalar dependencias. Si solo tienes Node, puedes instalar Bun con curl -fsSL https://bun.sh/install | bash (o brew install bun en macOS). Convive con Node sin pisarse.


Arranque rápido

bash
git clone https://github.com/jcorderop02/packet-tracer-mcp.git
cd packet-tracer-mcp
bun install
bun run start              # streamable-HTTP en :39001 (default)
# o bien:
bun run src/index.ts --stdio   # modo stdio para clientes MCP que lo prefieran

En Packet Tracer 9:

  1. Extensions > Scripting > Configure PT Script Modules > Add y selecciona extension/dist/mcp-bridge.pts.
  2. Marca la extensión como activa.
  3. Abre la ventana desde Extensions > MCP Bridge una vez por sesión.

El polling arranca solo en cuanto la ventana se carga. Para comprobar que todo está bien, lanza pt_bridge_status: en menos de un segundo debería responder connected: true.

El proceso completo de instalación está en docs/BOOTSTRAP.md.

El endpoint MCP queda en:

Code
http://127.0.0.1:39001/mcp

[!NOTE] Por qué :39001. PT 9 ya tiene su propio IPC nativo (no documentado, con handshake firmado por Cisco) escuchando en :39000. Para no chocar y dejar claro que el servidor MCP es algo aparte, este escucha en :39001. Si te molesta, cámbialo con la variable de entorno PACKETTRACER_MCP_PORT.

Conectar un cliente MCP

Claude Code (CLI, recomendado)

Una sola línea, sin tocar JSON:

Terminal
claude mcp add --transport http packet-tracer http://127.0.0.1:39001/mcp

Verifica con /mcp dentro de Claude Code: debe aparecer packet-tracer con sus 57 tools.

Claude Desktop

Edita ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) o el equivalente en tu SO y reinicia Claude Desktop:

config.json
{
  "mcpServers": {
    "packet-tracer": {
      "url": "http://127.0.0.1:39001/mcp"
    }
  }
}
Cursor

Settings → MCP → Add new MCP server → pega la URL http://127.0.0.1:39001/mcp con transporte http.

VS Code (Continue / Cline)

En el config.json del cliente:

config.json
{
  "mcpServers": {
    "packet-tracer": {
      "url": "http://127.0.0.1:39001/mcp"
    }
  }
}
Gemini CLI

Edita ~/.gemini/settings.json:

config.json
{
  "mcpServers": {
    "packet-tracer": {
      "httpUrl": "http://127.0.0.1:39001/mcp"
    }
  }
}

Verifica con /mcp list.

Codex CLI

Edita ~/.codex/config.toml:

toml
[mcp_servers.packet-tracer]
url = "http://127.0.0.1:39001/mcp"
Smoke con curl (sin cliente)

Para confirmar que el server responde antes de configurar nada:

Terminal
curl -sS -X POST http://127.0.0.1:39001/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"smoke","version":"1.0"}}}'

Debe devolver un result con serverInfo.name = "packet-tracer-mcp". Un segundo POST con "method":"tools/list" devuelve las 57 tools con su inputSchema.

Compilar a binario único

bash
bun run build
./dist/packet-tracer-mcp

Tests

bash
bun test

La suite unitaria cubre la aritmética de subnetting, la inspección del canvas, el parser de snapshots, los diffs, la validación de blueprints y los builders CLI de cada receta. No hace falta PT corriendo para ejecutarla.

Recorrido end-to-end

Con el bridge conectado (pt_bridge_status → connected: true), una sesión completa más o menos se ve así:

Read the full README →View source on GitHub →

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Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars
11
Stargazers on the source repository.
Last commit
2mo ago
Most recent push to the default branch.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Packet Tracer MCP

We don't have a confirmed install command for packet-tracer-mcp yet, so we don't publish a generated one — a guessed package name would point at the wrong package or none at all. Follow the project's own README or setup instructions (https://github.com/Jcorderop02/packet-tracer-mcp) for the current steps.

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Technical Specs & Signals

Category💻Developer Tools
More technical detailsExpand â–¾
Last updatedJul 13, 2026
4/8 checks healthy over the last 46d
Views0
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Installs0
Installs & Copy ActionsTotal times users copied install commands or configuration snippets for this server.
GitHub stars11
GitHub Star CountTotal stargazers on GitHub representing community popularity (11 stars).
Last commit2mo ago
Last Repository CommitThe most recent commit or push recorded for this server's GitHub repository.Last commit on Jul 13, 2026
33Quality signal: Emerging · 33/100How this signal is calculated ▾
Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20
Documentation & tools11/30
Adoption & activity4/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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