COMSOL MCP Server (COMSOL_Multiphysics_MCP)

MCP serverCommunity

Drives COMSOL through the MPh library with 100+ tools for geometry, physics, mesh, studies and results, plus a PDF search. By wjc9011.

940 starsUpdated 6 days agoGitHub data from 5 Nov 2026

At a glance

Type: MCP server
Works with: COMSOL Multiphysics
How it connects: Drives a running copy of the tool
Access: Can modify models
Tool versions: COMSOL Multiphysics 5.x or 6.x; electrochemistry registry checked against COMSOL 6.3
Operating systems: Not stated in its documentation
Needs a COMSOL Multiphysics licence: Yes
Transport: Local (stdio)
AI clients documented: Claude Desktop, opencode
Licence: MIT
Language: Python

What it can do

Starts a local COMSOL client or connects to a remote server, then loads, creates, clones and saves models with timestamped versions.
Builds geometry, adds physics interfaces, boundary conditions and multiphysics couplings, meshes, and runs stationary or time-dependent studies, synchronously or in the background.
Adds battery, fuel-cell, electrodeposition and corrosion interfaces from a registry of feature types read from a live COMSOL 6.3 session.
Evaluates expressions, exports results, and searches COMSOL PDF manuals once you build the local vector index.

Limitations

Needs a Java runtime and a non-Store Python 3.10+; MPh allows only one COMSOL client per Python process.
The author lists integration testing as still in progress.
The PDF knowledge base needs extra packages and a local embedding model.

Install

git clone https://github.com/wjc9011/COMSOL_Multiphysics_MCP.git
cd COMSOL_Multiphysics_MCP
python -m pip install -e .

Source: github.com/wjc9011/COMSOL_Multiphysics_MCP#installation

{
  "mcpServers": {
    "comsol": {
      "command": "python",
      "args": ["-m", "src.server"],
      "cwd": "/path/to/COMSOL_Multiphysics_MCP"
    }
  }
}

Source: github.com/wjc9011/COMSOL_Multiphysics_MCP#option-2-with-claude-desktop

MCP servers and skills run code on your computer. Review the source before installing.

AI-generated models, drawings and results must be checked by a qualified engineer before use.