COMSOL Multiphysics MCP servers and AI agent skills

How AI connects to COMSOL Multiphysics

An MCP server or skill can only do what COMSOL Multiphysics lets programs do. COMSOL Multiphysics exposes 3 automation interfaces:

• COMSOL API (Java) (Java): COMSOL models can be created and changed entirely through Java API calls on the model tree, covering geometry, physics, mesh, studies and results. Since 6.3 the Java Shell window runs this code interactively inside COMSOL. The MCP servers here call the same API from outside, either through MPh or through a Java bridge started with COMSOL's API jars on the classpath. Documentation
• MPh (Python) (Python): MPh is an open-source Python wrapper that reaches the COMSOL Java API through the JPype bridge and covers common tasks such as loading models, setting parameters, solving and exporting. It can start a stand-alone COMSOL client or connect to a COMSOL server. Only one client can exist per Python process, which the wjc9011 server works around by clearing models instead of disconnecting. Documentation
• LiveLink for MATLAB (Other): COMSOL's LiveLink for MATLAB exposes the same API to MATLAB scripts for geometry, mesh, physics, solver control and post-processing. It is an alternative route for teams that already automate COMSOL from MATLAB. Documentation

What COMSOL offers

COMSOL 6.3 added a Chatbot window, on Windows only, that connects to an AI provider using your own API key (OpenAI-compatible models, including cloud and on-premise ones) to generate or debug COMSOL API code, which you can run in the Java Shell window. From 6.4 it is installed by default but not connected. COMSOL has not released an MCP server.

Checked 4 Nov 2026. Sources: Using the Chatbot window in COMSOL Multiphysics (COMSOL blog), Setting up the Chatbot window (COMSOL Learning Center)

What you can do with COMSOL Multiphysics and AI

• Open an existing .mph, change a parameter, re-solve the study and export a plot and a table to a run folder.
• Build a small heat-transfer or laminar-flow model from scratch, with geometry, physics, boundary conditions, mesh and a stationary study.
• Set up a lithium-ion battery or corrosion model using electrochemistry interface types read from a live COMSOL 6.3 session.
• Keep a locked main model on a COMSOL server and save a snapshot after each design iteration while you watch in COMSOL Desktop.
• Run a permanent-magnet motor NVH chain with checkpoints, from Maxwell forces to structural modes and sound pressure level.

Taken from the listings' own documentation. Check each listing for exactly what it supports.

Installing

The listings here document setup for Claude Desktop, Codex and opencode. Install steps, copied from each project's own documentation, are on each listing's page. Most COMSOL Multiphysics integrations run on your own computer next to COMSOL Multiphysics, so you need COMSOL Multiphysics installed and licensed on the same machine unless the listing says otherwise.