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Prerequisite: Ensure you have Coplay properly installed in your Unity project before proceeding.If you haven’t installed Coplay yet, please follow our Installation Guide first.You’ll need Python 3.11 or higher, and uv installed.

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What is Coplay MCP

Coplay MCP is an interface that lets you control Coplay inside Unity from your favorite MCP client such as Cline or Claude Code. As an example, here’s a video in which we use Coplay’s MCP to edit multiple Unity projects simultaneously.

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Setting up Coplay MCP

Once you have Coplay installed and authenticated, you’re ready to connect the Coplay MCP. Add this config to your favorite MCP client: 
{
  "mcpServers": {
    "coplay-mcp": {
      "autoApprove": [],
      "disabled": false,
      "timeout": 60,
      "type": "stdio",
      "command": "uvx",
      "args": [
        "coplay-mcp-server@latest"
      ]
    }
  }
}
To test that your Coplay MCP works, prompt your MCP client (e.g., Cursor or ChatGPT) with something like: List all of the open unity editors using Coplay MCP. If this yields the actual list of open editors, you’re good to go. Need more help? Join our Discord community for support from the Coplay team and other users.