COMSOL MCP Server
Enables automation of COMSOL Multiphysics simulations, including model management, geometry construction, physics configuration, meshing, solving, and results visualization.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@COMSOL MCP ServerLoad chip_thermal.mph, set power to 5W, and run the stationary solver."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
COMSOL MCP Server
MCP Server for COMSOL Multiphysics simulation automation via AI agents.
English | 中文
Project Goal
Build a complete COMSOL MCP Server enabling AI agents (like Claude, opencode) to perform multiphysics simulations through the MCP protocol:
Model Management - Create, load, save, version control
Geometry Building - Blocks, cylinders, spheres, boolean operations
Physics Configuration - Heat transfer, fluid flow, electrostatics, solid mechanics
Meshing & Solving - Auto mesh, stationary/time-dependent studies
Results Visualization - Evaluate expressions, export plots
Knowledge Integration - Embedded guides + PDF semantic search
Requirements
COMSOL Multiphysics (version 5.x or 6.x)
Python 3.10+ (NOT Windows Store version)
Java runtime (required by MPh/COMSOL)
Installation
# Clone repository
git clone https://github.com/wjc9011/comsol-mcp.git
cd comsol-mcp
# Install dependencies
python -m pip install -e .
# Test server
python -m src.serverBuilding PDF Knowledge Base
# Install additional dependencies
pip install pymupdf chromadb sentence-transformers
# Build knowledge base
python scripts/build_knowledge_base.py
# Check status
python scripts/build_knowledge_base.py --statusUsage
Option 1: With opencode
Create opencode.json in project root:
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"comsol": {
"type": "local",
"command": ["python", "-m", "src.server"],
"enabled": true,
"environment": {
"HF_ENDPOINT": "https://hf-mirror.com"
},
"timeout": 30000
}
}
}Option 2: With Claude Desktop
{
"mcpServers": {
"comsol": {
"command": "python",
"args": ["-m", "src.server"],
"cwd": "/path/to/comsol-mcp"
}
}
}Code Structure
comsol_mcp/
├── opencode.json # MCP server config for opencode
├── pyproject.toml # Python project config
├── README.md # This file
│
├── src/
│ ├── server.py # MCP Server entry point
│ ├── tools/
│ │ ├── session.py # COMSOL session management (start/stop/status)
│ │ ├── model.py # Model CRUD + versioning
│ │ ├── parameters.py # Parameter management + sweeps
│ │ ├── geometry.py # Geometry creation (block/cylinder/sphere)
│ │ ├── physics.py # Physics interfaces + boundary conditions
│ │ ├── mesh.py # Mesh generation
│ │ ├── study.py # Study creation + solving (sync/async)
│ │ └── results.py # Results evaluation + export
│ ├── resources/
│ │ └── model_resources.py # MCP resources (model tree, parameters)
│ ├── knowledge/
│ │ ├── embedded.py # Embedded physics guides + troubleshooting
│ │ ├── retriever.py # PDF vector search retriever
│ │ └── pdf_processor.py # PDF chunking + embedding
│ ├── async_handler/
│ │ └── solver.py # Async solving with progress tracking
│ └── utils/
│ └── versioning.py # Model version path management
│
├── scripts/
│ └── build_knowledge_base.py # Build PDF vector database
│
├── client_script/ # Standalone modeling scripts (examples)
│ ├── create_chip_tsv_final.py # Example: Chip thermal model
│ ├── create_micromixer_auto.py # Example: Fluid flow simulation
│ ├── create_chip_thermal*.py # Various chip thermal variants
│ ├── create_micromixer*.py # Various micromixer variants
│ ├── visualize_*.py # Result visualization scripts
│ ├── add_visualization.py # Add plot groups to model
│ └── test_*.py # Integration tests
│
├── comsol_models/ # Saved models (structured)
│ ├── chip_tsv_thermal/
│ │ ├── chip_tsv_thermal_20260216_*.mph
│ │ └── chip_tsv_thermal_latest.mph
│ └── micromixer/
│ └── micromixer_*.mph
│
└── tests/
└── test_basic.py # Unit testsAvailable Tools (80+ total)
Session (4)
Tool | Description |
| Start local COMSOL client |
| Connect to remote server |
| Clear session |
| Get session info |
Model (9)
Tool | Description |
| Load .mph file |
| Create empty model |
| Save to file |
| Save with timestamp |
| List loaded models |
| Set active model |
| Clone model |
| Remove from memory |
| Get model structure |
Parameters (5)
Tool | Description |
| Get parameter value |
| Set parameter |
| List all parameters |
| Setup parametric sweep |
| Get/set description |
Geometry (14)
Tool | Description |
| List geometry sequences |
| Create geometry sequence |
| Add generic feature |
| Add rectangular block |
| Add cylinder |
| Add sphere |
| Add 2D rectangle |
| Add 2D circle |
| Union objects |
| Subtract objects |
| Import CAD file |
| Build geometry |
| List features |
| Get boundary numbers |
Physics (16)
Tool | Description |
| List physics interfaces |
| Available physics types |
| Add generic physics |
| Add Electrostatics |
| Add Solid Mechanics |
| Add Heat Transfer |
| Add Laminar Flow |
| Configure boundary condition |
| Assign material |
| List physics features |
| Remove physics |
| Add coupling |
| Interactive heat BC setup |
| Configure heat boundaries |
| Interactive flow BC setup |
| Generic boundary setup |
Mesh (3)
Tool | Description |
| List mesh sequences |
| Generate mesh |
| Get mesh statistics |
Study & Solving (8)
Tool | Description |
| List studies |
| Solve synchronously |
| Solve in background |
| Get progress |
| Cancel solving |
| Wait for completion |
| List solutions |
| List datasets |
Results (9)
Tool | Description |
| Evaluate expression |
| Evaluate scalar |
| Get time steps |
| Get sweep values |
| Export data |
| Export plot image |
| List export nodes |
| List plot nodes |
Knowledge (8)
Tool | Description |
| Get documentation |
| List available docs |
| Physics quick guide |
| Troubleshooting help |
| Best practices |
| Search PDF docs |
| PDF search status |
| List PDF modules |
Example Cases
Case 1: Chip Thermal Model with TSV
3D thermal analysis of a silicon chip with Through-Silicon Via (TSV).
Geometry: 60×60×5 µm chip, 5 µm diameter TSV hole, 10×10 µm heat source
# Key steps:
# 1. Create chip block and TSV cylinder
# 2. Boolean difference (subtract TSV from chip)
# 3. Add Silicon material (k=130 W/m·K)
# 4. Add Heat Transfer physics
# 5. Set heat flux on top, temperature on bottom
# 6. Solve and evaluate temperature distributionScript: client_script/create_chip_tsv_final.py
Run:
cd /path/to/comsol-mcp
python client_script/create_chip_tsv_final.pyResults: Temperature rise from ambient with heat flux of 1 MW/m²
Case 2: Micromixer Fluid Flow
3D laminar flow simulation in a microfluidic channel.
Geometry: 600×100×50 µm rectangular channel
# Key steps:
# 1. Create rectangular channel block
# 2. Add water material (ρ=1000 kg/m³, μ=0.001 Pa·s)
# 3. Add Laminar Flow physics
# 4. Set inlet velocity (1 mm/s), outlet pressure
# 5. Add Transport of Diluted Species for mixing
# 6. Solve and evaluate velocity profileScript: client_script/create_micromixer_auto.py
Run:
cd /path/to/comsol-mcp
python client_script/create_micromixer_auto.pyResults: Velocity distribution, concentration mixing profile
Model Versioning
Models are saved with structured paths:
./comsol_models/{model_name}/{model_name}_{timestamp}.mph
./comsol_models/{model_name}/{model_name}_latest.mphExample:
./comsol_models/chip_tsv_thermal/chip_tsv_thermal_20260216_140514.mph
./comsol_models/chip_tsv_thermal/chip_tsv_thermal_latest.mphKey Technical Discoveries
1. mph Library API Patterns
# Access Java model via property (not callable)
jm = model.java # NOT model.java()
# Create component with True flag
comp = jm.component().create('comp1', True)
# Create 3D geometry
geom = comp.geom().create('geom1', 3)
# Create physics with geometry reference
physics = comp.physics().create('spf', 'LaminarFlow', 'geom1')
# Boundary condition with selection
bc = physics.create('inl1', 'InletBoundary')
bc.selection().set([1, 2, 3])
bc.set('U0', '1[mm/s]')2. Boundary Condition Property Names
Physics | Condition | Property |
Heat Transfer | HeatFluxBoundary |
|
Heat Transfer | TemperatureBoundary |
|
Heat Transfer | ConvectiveHeatFlux |
|
Laminar Flow | InletBoundary |
|
Laminar Flow | OutletBoundary |
|
3. Client Session Limitation
The mph library creates a singleton COMSOL client. Only one Client can exist per Python process:
# This is handled in session.py - client is kept alive and models are cleared
client.clear() # Clear models instead of full disconnect4. Offline Embedding Model
PDF search supports offline operation with local HuggingFace cache:
# Set mirror for China
export HF_ENDPOINT=https://hf-mirror.comDevelopment Status
Phase | Description | Status |
1 | Basic framework + Session + Model | Done |
2 | Parameters + Solving + Results | Done |
3 | Geometry + Physics + Mesh | Done |
4 | Embedded knowledge + Tool docs | Done |
5 | PDF vector retrieval | Done |
6 | Integration tests | In Progress |
Next Steps
Complete Phase 6 - Full integration test with proper boundary conditions
Visualization Export - Generate PNG images from plot groups
LSP Warnings - Fix type hints in physics.py
More Examples - Add electrostatics, solid mechanics cases
Error Handling - Improve error messages and recovery
Resources
URI | Description |
| Session information |
| Model tree structure |
| Model parameters |
| Physics interfaces |
License
MIT
This server cannot be installed
Resources
Unclaimed servers have limited discoverability.
Looking for Admin?
If you are the server author, to access and configure the admin panel.
Latest Blog Posts
MCP directory API
We provide all the information about MCP servers via our MCP API.
curl -X GET 'https://glama.ai/api/mcp/v1/servers/wjc9011/COMSOL_Multiphysics_MCP'
If you have feedback or need assistance with the MCP directory API, please join our Discord server