Blockbench Plugin
Adds MCP server to Blockbench
What is Blockbench Plugin?
Blockbench Plugin is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to adds mcp server to blockbench
Adds MCP server to Blockbench
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Adds MCP server to Blockbench
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx blockbench-mcp-pluginConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Blockbench Plugin
Blockbench MCP Plugin adds a Model Context Protocol server directly inside Blockbench, the popular 3D model editor used for Minecraft and other game assets, enabling AI assistants to interact with your 3D modeling workspace through natural language. The plugin runs an HTTP MCP server on localhost that AI clients connect to, allowing them to use Blockbench's tools, resources, and prompts to assist with model creation, texture work, and animation through agent-orchestrated workflows.
Prerequisites
- Blockbench desktop application installed (https://blockbench.net)
- An MCP client such as Claude Desktop, Claude Code, Cursor, or Cline (VS Code)
- HTTP port 3000 available on localhost (configurable in Blockbench settings)
- Node.js 18 or higher (required if using npx mcp-remote for Claude Desktop)
Install the Blockbench MCP plugin
Open Blockbench and go to File → Plugins → Load Plugin from URL. Paste the plugin URL to load the MCP server plugin into Blockbench.
Plugin URL: https://jasonjgardner.github.io/blockbench-mcp-plugin/mcp.jsConfigure the MCP server in Blockbench settings
After installing the plugin, go to Blockbench Settings → General. You will see MCP Server Port (default 3000) and MCP Server Endpoint (default /bb-mcp). Adjust these if port 3000 conflicts with other services.
Start Blockbench with a model open
Open Blockbench and load or create a 3D model. The MCP server starts automatically once the plugin is active and Blockbench is running.
Connect Claude Code via HTTP transport
Register the Blockbench MCP server with Claude Code using the HTTP transport pointing to the local server.
claude mcp add blockbench --transport http http://localhost:3000/bb-mcpConnect Claude Desktop via npx mcp-remote
For Claude Desktop, add an entry in claude_desktop_config.json that proxies the HTTP MCP server using npx mcp-remote.
{
"mcpServers": {
"blockbench": {
"command": "npx",
"args": ["mcp-remote", "http://localhost:3000/bb-mcp"]
}
}
}Blockbench Plugin Examples
Client configuration
Claude Desktop configuration using mcp-remote to connect to the Blockbench MCP HTTP server.
{
"mcpServers": {
"blockbench": {
"command": "npx",
"args": ["mcp-remote", "http://localhost:3000/bb-mcp"]
}
}
}Prompts to try
Once the plugin is running and connected, use these prompts to interact with Blockbench through AI.
- "Show me the current model's element structure in Blockbench"
- "Add a new cube element at position 0,0,0 with size 8x8x8"
- "List the available textures in this Blockbench project"
- "What tools and capabilities does the Blockbench MCP server expose?"Troubleshooting Blockbench Plugin
Plugin URL fails to load in Blockbench
Ensure you are using the Blockbench desktop application, not the web version, as the MCP plugin requires local server access. Try reloading the plugin URL from File → Plugins → Load Plugin from URL with the exact URL: https://jasonjgardner.github.io/blockbench-mcp-plugin/mcp.js
AI client cannot connect to localhost:3000/bb-mcp
Verify Blockbench is open and the plugin is active. Check that the port shown in Blockbench Settings → General matches the port in your MCP client configuration. If port 3000 is in use by another service, change it in Blockbench settings and update your client config.
Claude Desktop shows connection errors with the HTTP endpoint
Claude Desktop does not natively support HTTP MCP transports. Use the npx mcp-remote proxy as shown in the example configuration. Ensure npx is available in your PATH by running 'npx --version' in a terminal.
Frequently Asked Questions about Blockbench Plugin
What is Blockbench Plugin?
Blockbench Plugin is a Model Context Protocol (MCP) server that adds mcp server to blockbench It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Blockbench Plugin?
Follow the installation instructions on the Blockbench Plugin GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Blockbench Plugin?
Blockbench Plugin works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Blockbench Plugin free to use?
Yes, Blockbench Plugin is open source and available under the GPL-3.0 license. You can use it freely in both personal and commercial projects.
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Set Up Blockbench Plugin in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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