internals

How `get_blender_connection()` Implements Connection Pooling in Blender MCP

April 13, 2026 ahujasid/blender-mcp ↗

get_blender_connection() implements connection pooling by maintaining a single global BlenderConnection instance that is validated via a lightweight ping and reused across all MCP tool requests, automatically recreating the socket if the connection is lost.

The Blender MCP server enables LLMs to control Blender through a persistent TCP socket, avoiding the overhead of spawning new processes per command. Instead of creating a fresh socket for every tool invocation, the get_blender_connection() function in src/blender_mcp/server.py manages a module-level connection that all

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