PlayCanvas Editor MCP Server

██████╗ ██╗      █████╗ ██╗   ██╗ ██████╗ █████╗ ███╗   ██╗██╗   ██╗ █████╗ ███████╗
██╔══██╗██║     ██╔══██╗╚██╗ ██╔╝██╔════╝██╔══██╗████╗  ██║██║   ██║██╔══██╗██╔════╝
██████╔╝██║     ███████║ ╚████╔╝ ██║     ███████║██╔██╗ ██║██║   ██║███████║███████╗
██╔═══╝ ██║     ██╔══██║  ╚██╔╝  ██║     ██╔══██║██║╚██╗██║╚██╗ ██╔╝██╔══██║╚════██║
██║     ███████╗██║  ██║   ██║   ╚██████╗██║  ██║██║ ╚████║ ╚████╔╝ ██║  ██║███████║
╚═╝     ╚══════╝╚═╝  ╚═╝   ╚═╝    ╚═════╝╚═╝  ╚═╝╚═╝  ╚═══╝  ╚═══╝  ╚═╝  ╚═╝╚══════╝

███╗   ███╗ ██████╗██████╗        ███████╗███████╗██████╗ ██╗   ██╗███████╗██████╗ 
████╗ ████║██╔════╝██╔══██╗       ██╔════╝██╔════╝██╔══██╗██║   ██║██╔════╝██╔══██╗
██╔████╔██║██║     ██████╔╝       ███████╗█████╗  ██████╔╝██║   ██║█████╗  ██████╔╝
██║╚██╔╝██║██║     ██╔═══╝        ╚════██║██╔══╝  ██╔══██╗╚██╗ ██╔╝██╔══╝  ██╔══██╗
██║ ╚═╝ ██║╚██████╗██║            ███████║███████╗██║  ██║ ╚████╔╝ ███████╗██║  ██║
╚═╝     ╚═╝ ╚═════╝╚═╝            ╚══════╝╚══════╝╚═╝  ╚═╝  ╚═══╝  ╚══════╝╚═╝  ╚═╝

An MCP Server for automating the PlayCanvas Editor using an LLM.

Important

At the moment, the MCP Server needs to be driven by Anthropic's Claude. Our experience shows that the free tier for Claude does not deliver a big enough chat context to operate the MCP Server reliably. Therefore, we strongly recommend subscribing to a Pro Claude account.

Available Tools

create_entities
modify_entities
duplicate_entities
reparent_entity
delete_entities
list_entities
add_components
remove_components
list_assets
delete_assets
instantiate_template_assets
create_script
set_script_text
script_parse
create_material
set_material_diffuse
add_script_component_script
modify_scene_settings
query_scene_settings
store_search
store_get
store_download

Installation

Run npm install to install all dependencies.

Install Chrome Extension

Visit chrome://extensions/ and enable Developer mode
Click Load unpacked and select the extensions folder
Load the PlayCanvas Editor. The extension should be loaded.

Run MCP Server

The MCP Server can be driven by Cursor or Claude Desktop.

Tip

We have found Claude Desktop to be generally more reliable.

Claude Desktop

Install Claude Desktop.
Go to Claude > Settings.
Select Developer and then Edit Config.
This will open claude_desktop_config.json, your MCP Config JSON file.

Cursor

Install Cursor.
Select File > Preferences > Cursor Settings.
Click + Add new global MCP server.
This will open mcp.json, your MCP Config JSON file.

Tip

Also in Cursor Settings, select Features and scroll to the Chat section. Activate Enable auto-run mode to allow the LLM to run MCP tools without requiring constant authorization. You do this at your own risk (but we prefer it)!

MCP Config JSON File

This is how your config should look:

Windows

{
  "mcpServers": {
    "playcanvas": {
      "command": "cmd",
      "args": [
        "/c",
        "npx",
        "tsx",
        "C:\\path\\to\\mcp-editor\\src\\server.ts"
      ]
    }
  }
}

macOS

{
  "mcpServers": {
    "playcanvas": {
      "command": "npx",
      "args": [
        "tsx",
        "/path/to/mcp-editor/src/server.ts"
      ]
    }
  }
}

The MCP server and Chrome extension should now be running. You can enter a command!