architecture

How execute_blender_code Executes Arbitrary Python in Blender: Architecture Deep Dive

April 13, 2026 ahujasid/blender-mcp ↗

The execute_blender_code tool marshals Python code strings from the MCP server to a running Blender instance via TCP sockets, where the Blender add-on executes the code using Python's exec() function in an isolated namespace and returns captured stdout to the caller.

The execute_blender_code tool in the ahujasid/blender-mcp repository enables Model Context Protocol (MCP) clients to run arbitrary Python scripts inside Blender's embedded interpreter. This capability bridges external AI assistants with Blender's Python API (bpy), allowing real-time

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{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}

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