Blender MCP Skill#

This skill enables OpenClaw to control Blender through the BlenderMCP Model Context Protocol integration.

Prerequisites#

1. Blender installed and running
2. BlenderMCP addon installed in Blender
3. blender-mcp Python package installed via uvx

Usage#

Starting the Connection#

1. In Blender:
   • Open Blender
   • Press N to show the 3D View sidebar
   • Go to "BlenderMCP" tab
   • Click "Connect to Claude" to start the socket server on localhost:9876
2. In OpenClaw:
   • Use the start-server script to start the MCP server
   • Or run uvx blender-mcp manually

Available Commands#

The following tools are available through BlenderMCP:

• get_scene_info - Get detailed information about the current Blender scene
• create_object - Create a new 3D object (cube, sphere, cylinder, etc.)
• delete_object - Delete an existing object
• modify_object - Modify object properties (location, rotation, scale, etc.)
• set_material - Create/assign a material to an object
• execute_code - Execute arbitrary Python code in Blender
• get_screenshot - Get a screenshot of the current viewport
• download_asset_polyhaven - Download assets from Poly Haven
• search_sketchfab - Search and download models from Sketchfab
• generate_model_3d - Generate 3D models using Hyper3D Rodin AI

Example Prompts#

• "Create a low poly dungeon scene with a dragon guarding gold"
• "Make a red metallic sphere on top of a cube"
• "Create a studio lighting setup and point the camera at the scene"
• "Get a screenshot of the current scene"
• "Download a grass texture from Poly Haven and apply it to the ground"

Scripts#

• scripts/start-server.sh - Start the Blender MCP server
• scripts/test-connection.py - Test connection to Blender

Configuration#

By default, connects to:

• Host: localhost
• Port: 9876

To change, set environment variables:

bash

export BLENDER_HOST=your-host
export BLENDER_PORT=your-port

Troubleshooting#

1. Connection refused: Make sure Blender is running and the addon is connected
2. Timeout errors: Break large requests into smaller steps
3. Unknown command: Restart both Blender addon and MCP server