Blockbench MCP

@jasonjgardner

About Blockbench MCP

Adds MCP server to Blockbench

Config

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

{
  "mcpServers": {
    "blockbench-mcp-plugin": {
      "command": "npx",
      "args": [
        "mcp-add",
        "--type",
        "http",
        "--url",
        "http://localhost:3000/bb-mcp",
        "--scope",
        "project"
      ]
    }
  }
}

Tools

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We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Blockbench MCP?

Blockbench MCP is a plugin and Model Context Protocol (MCP) server that connects AI assistants (like Claude, Cline, or Ollama) to the Blockbench 3D modeling tool. It is designed for Blockbench users who want to control, query, or automate modeling tasks through AI agents.

How to use Blockbench MCP?

Install the Blockbench plugin by opening the desktop version of Blockbench, going to File > Plugins, clicking “Load Plugin from URL”, and pasting the plugin URL. Then configure the MCP server under Blockbench settings (Settings > General) by setting the MCP Server Port and MCP Server Endpoint (default: :3000/bb-mcp). Finally, connect your preferred MCP client (e.g., Claude Desktop, VS Code, Cline, Ollama) to http://localhost:3000/bb-mcp using the provided configuration examples.

Key features of Blockbench MCP

Connects AI assistants to Blockbench via MCP protocol
Supports multiple MCP clients: Claude, VS Code, Cline, Ollama, and more
Enables AI-driven 3D modeling commands and queries
Uses HTTP transport for communication
Includes a sample project with prompt examples
Works with Agent Skills to orchestrate tool usage

Use cases of Blockbench MCP

Automate repetitive 3D modeling tasks with AI agents
Generate Blockbench models from natural language prompts
Integrate Blockbench into AI-driven pipelines (Claude Code, Cline, etc.)
Orchestrate multi-step modeling workflows using Agent Skills

FAQ from Blockbench MCP

How do I install the Blockbench plugin?

Open the desktop version of Blockbench, go to File > Plugins, click “Load Plugin from URL”, and paste the plugin URL: https://jasonjgardner.github.io/blockbench-mcp-plugin/mcp.js.

How do I configure the MCP server within Blockbench?

Go to Blockbench Settings > General, then set the MCP Server Port and MCP Server Endpoint (default endpoint is :3000/bb-mcp).

What dependencies does Blockbench MCP require?

You need the desktop version of Blockbench. No additional runtime dependencies are listed; the server is accessed via HTTP.

What transport and authentication does Blockbench MCP use?

It uses HTTP transport on a local port. No authentication mechanism is mentioned in the README.

Is there a sample project for usage examples?

Yes, a sample project is available at https://github.com/jasonjgardner/blockbench-mcp-project with prompt examples and Agent Skills orchestration.

Frequently asked questions

How do I install the Blockbench plugin?

Open the desktop version of Blockbench, go to File > Plugins, click “Load Plugin from URL”, and paste the plugin URL: `https://jasonjgardner.github.io/blockbench-mcp-plugin/mcp.js`.

How do I configure the MCP server within Blockbench?

Go to Blockbench Settings > General, then set the MCP Server Port and MCP Server Endpoint (default endpoint is `:3000/bb-mcp`).

What dependencies does Blockbench MCP require?

You need the desktop version of Blockbench. No additional runtime dependencies are listed; the server is accessed via HTTP.

What transport and authentication does Blockbench MCP use?

It uses HTTP transport on a local port. No authentication mechanism is mentioned in the README.

Is there a sample project for usage examples?

Yes, a sample project is available at `https://github.com/jasonjgardner/blockbench-mcp-project` with prompt examples and Agent Skills orchestration.

Comments

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