Autodesk Fusion MCP Server Add-in

Control Fusion with AI !

This add-in for Autodesk Fusion connects to the Aura Friday MCP-Link server, making Fusion available as a remote tool that AI agents can control. Official Store Link

Click above to watch AI create "Fusion Rocks!" in 3D

🚀 What's New

Latest: Enhanced Python Integration (January 2026)

• 🔥 Pre-injected shortcuts - app, ui, design, rootComponent available immediately in Python
• 🔥 Cross-operation context - Access objects stored via store_as from Python using fusion_context
• 🔥 ValueInput support - Generic API now constructs ValueInput objects automatically
• 🔥 Triple documentation sources - Introspection + Online docs + Best practices
• 🔥 Rich API docs with samples - Fetch from Autodesk's cloudhelp with code examples
• 🔥 Automatic updates - Secure, signature-verified updates without reinstalling

Thread-Safe Architecture (November 2025)

• ✅ Rock-solid stability - All Fusion API calls now execute on main thread
• ✅ Zero crashes - Work queue system prevents threading issues
• ✅ Centralized logging - Thread-safe diagnostics from all components
• ✅ Production ready - Handles heavy loads without instability

Python Execution + MCP Tool Integration

AI can now run arbitrary Python code directly inside Fusion with full access to:

• ✅ Entire Fusion API (adsk.core, adsk.fusion, adsk.cam)
• ✅ All loaded add-ins (access your custom add-ins automatically!)
• ✅ SQLite databases (store and query design data)
• ✅ Browser automation (open documentation, extract data)
• ✅ User popups (show results, get input)
• ✅ 500+ AI models via OpenRouter
• ✅ Local AI models (offline inference)
• ✅ Desktop automation (Windows control)

Example: AI analyzes your AirfoilTools add-in, finds the best airfoil from 1,538 profiles, stores results in SQLite, and shows a popup—all in one command!

What This Is

A Fusion add-in that gives AI unlimited access to Fusion through three powerful capabilities:

1. 🎯 Generic API Calls

Execute any Fusion API command without custom code:

fusion360.execute({
  "api_path": "design.rootComponent.sketches.add",
  "args": ["design.rootComponent.xYConstructionPlane"]
})

2. 🐍 Python Execution (NEW!)

Run arbitrary Python with full Fusion access:

fusion360.execute({
  "operation": "execute_python",
  "code": """
import adsk.core, adsk.fusion

# Create sketch
sketch = design.rootComponent.sketches.add(design.rootComponent.xYConstructionPlane)

# Store in database
mcp.call('sqlite', {
    'input': {'sql': 'INSERT INTO designs (name) VALUES (?)', 
              'params': [sketch.name]}
})

# Show popup
mcp.call('user', {
    'input': {'operation': 'show_popup', 
              'html': f'<h1>Created {sketch.name}!</h1>'}
})
"""
})

3. 🔗 MCP Tool Integration (NEW!)

Access 10+ built-in tools from Fusion:

• SQLite databases
• Browser automation
• User popups
• Python execution
• AI models (local & cloud)
• Desktop automation
• And more!

4. 📚 Multi-Source Documentation (NEW!)

AI has access to three complementary documentation sources:

Quick Search (Introspection):

fusion360.execute({
  "operation": "get_api_documentation",
  "search_term": "ExtrudeFeature",
  "category": "class_name"
})

Rich Docs with Samples (Online):

fusion360.execute({
  "operation": "get_online_documentation",
  "class_name": "ExtrudeFeatures",
  "member_name": "createInput"
})
# Returns: parameter tables, return types, and 8+ working code samples!

Best Practices Guide:

fusion360.execute({
  "operation": "get_best_practices"
})
# Returns: coordinate systems, body naming, PTransaction patterns, etc.

... View full README on GitHub