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Bonsai MCP
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Bonsai MCP

Bonsai-mcp is a Blender plugin that enables analysis and operation of IFC building models through IfcOpenShell, supporting interaction with LLMs like Claude to perform building information model query tasks.
Artificial intelligence chatbotsDeveloper tools#Building model#IFC analysis#Blender plugin#AI interaction.Python
2.5 points
16

What is Bonsai-mcp?

Bonsai-mcp is a bridge connecting Blender and AI assistants, specifically designed for IFC format models in the construction industry. It allows you to query building model information through natural language, perform professional analysis, and obtain structured data feedback.

How to use Bonsai-mcp?

After installing the Blender plugin and configuring the Claude client, you can directly use dedicated tools in the chat interface to query model information. You can obtain professional data such as the attributes of building elements and the spatial structure without writing code.

Use cases

Scenarios that require interactive access to IFC model data, such as building information model review, construction progress simulation, facility management query, and building performance analysis.

Main features

IFC model querySupports multi-dimensional queries of IFC models, including element type filtering, attribute extraction, and spatial relationship analysis
BIM professional analysisProvides 5 professional analysis tools: project information, entity list, attribute viewing, spatial structure, and relationship analysis
Seamless integration with BlenderEnables real-time interaction with Blender through Socket communication, supporting code execution and model modification
Structured thinking toolBuilt-in step-by-step thinking framework, supporting structured analysis of complex problems and derivation of solutions

Advantages and limitations

Advantages
Access to professional BIM data without programming
Support for the industry-standard IFC format
Deep integration with AI assistants like Claude
Provision of analysis tools specific to the construction industry
Limitations
Requires a Blender and Bonsai BIM plugin environment
Performance delays may occur when querying large models
Some advanced functions require basic Python knowledge

How to use

Environment preparation
Install Blender 3.0+ and the Bonsai BIM plugin, and ensure a Python 3.10+ environment
Install the plugin
Install addon.py in the Blender preferences and enable IFC function support
Configure Claude
Edit the claude_desktop_config.json file and add the MCP server configuration
Connect and use
Click "Connect to Claude" in the Blender sidebar, and then use the IFC tools in Claude

Usage examples

Building element statisticsQuickly obtain the quantity statistics of various building elements in the model
Spatial analysisAnalyze the hierarchical structure and spatial relationships of the building
Element attribute queryGet detailed technical parameters of specific building elements

Frequently Asked Questions

Why can't I connect to Blender?
How to handle large IFC models?
How to expand the IFC query function?

Related resources

Original BlenderMCP project
Basic MCP implementation project
IFC official standard
Technical specification for the IFC format
Bonsai BIM plugin
Core IFC processing for Blender
Installation
Copy the following command to your Client for configuration
{
    "mcpServers": {
        "Bonsai-mcp": {
            "command": "uv",
            "args": [
              "--directory",
              "\\your\\path\\to\\Bonsai_mcp",
              "run",
              "tools.py"
          ]
        }
    }
}
Note: Your key is sensitive information, do not share it with anyone.
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