Blender MCP Senpai

@xhiroga

Repository

Basic information

About Blender MCP Senpai

Your AI-assisted mentor for Blender.

#blender#3dcg#ai-mentor

Blender MCP Senpai config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "blender-senpai": {
      "command": "npx",
      "args": [
        "-y",
        "supergateway",
        "--sse",
        "http://localhost:13180/sse"
      ]
    }
  }
}

Blender MCP Senpai tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is Blender MCP Senpai?

Blender MCP Senpai is an AI-assisted topology mentor for Blender that detects n-gons and topology issues in real time. It integrates with ChatGPT, Claude, or Gemini to provide improvement suggestions, and runs as a Blender add-on with a built-in MCP server (no external MCP process required). It is designed for 3D artists and modellers who want to improve their mesh topology.

How to use Blender MCP Senpai?

Install the add-on in Blender (requires Blender 4.2+). No further setup is needed for the basic topology detection. To enable AI suggestions, configure an MCP-compatible client (e.g., Claude Desktop or Dive) to connect to http://localhost:13180/sse using the JSON configuration provided in the README. After restarting the client, AI comments will appear for detected topology issues.

Key features of Blender MCP Senpai

Auto n-gon highlight – instantly spots topology issues
AI comments from ChatGPT, Claude, or Gemini
Zero configuration – works out-of-the-box
No external MCP server required

Use cases of Blender MCP Senpai

Detecting n-gons and non-manifold geometry in 3D models
Receiving AI-suggested improvements for mesh topology
Learning best practices for clean topology during modelling
Speeding up model review and iteration with real-time feedback

Frequently asked questions

Do I need an external MCP server to run Blender MCP Senpai?

No. The add‑on includes its own MCP server component. You only need an MCP client (e.g., Claude Desktop) to connect to it.

Which AI models can provide suggestions?

ChatGPT, Claude, and Gemini are supported.

What version of Blender is required?

Blender 4.2 or later.

How do I configure an MCP client like Claude or Dive?

Add a JSON entry to your client as shown in the Quick Start section. For example, Claude uses `npx -y supergateway --sse http://localhost:13180/sse`; Dive uses SSE transport at the same URL. Restart the application after configuration.

What transport does the server use?

The add‑on communicates via SSE (Server‑Sent Events) on `http://localhost:13180/sse`.

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