Cursor

Why We Recommend Claude Code Instead

Using Cursor with MCP means you lose several features compared to agents with full ACP support:

• No integrated chat - You have to switch between Unreal Editor and Cursor
• No automatic context - Cursor won't automatically know what you're working on in the editor
• No image attachments - Can't easily share viewport screenshots or UI references
• Limited streaming - Response streaming may not be as smooth

Claude Code with a Claude Max subscription (~$200/month) gives you approximately $2000 worth of API usage - that's multiple times more than what you get with Cursor Pro, and it runs significantly faster with full ACP integration.

Still Want to Use Cursor?

If you need to use Cursor, you can connect it to Unreal Editor's MCP server to access all the editor tools.

Prerequisites

• Cursor installed
• Unreal Editor running with the plugin enabled

Configuration

Create a file at .cursor/mcp.json in your Unreal project folder:

{
  "mcpServers": {
    "unreal-editor": {
      "url": "http://localhost:9315/mcp"
    }
  }
}

Or for global access (all projects), create ~/.cursor/mcp.json:

C:\Users\<username>\.cursor\mcp.json

~/.cursor/mcp.json

{
  "mcpServers": {
    "unreal-editor": {
      "url": "http://localhost:9315/mcp"
    }
  }
}

Verify Connection

1. Make sure Unreal Editor is running (the MCP server starts automatically on port 9315)
2. Restart Cursor or reload the window
3. In Cursor's chat, check that Unreal Editor tools appear under "Available Tools"

Test the connection by asking Cursor:

What tools do you have from unreal-editor?

Or:

Use read_asset on /Game to test the Unreal Editor connection

Available Tools

Once connected, Cursor can use all the Unreal Editor tools including:

• read_asset - Read and inspect Unreal assets
• edit_blueprint - Blueprint editing plus Enhanced Input routing (asset_domain='enhanced_input')
• edit_graph - Edit graphs and search for available nodes
• edit_ai_tree - Unified BehaviorTree/StateTree editing
• edit_rigging - Unified motion stack + Control Rig editing
• edit_animation_asset - Unified montage/anim sequence/blend space editing
• edit_character_asset - Unified skeleton/physics-asset editing
• generate_asset - Unified image + 3D generation
• And many more tools from the 15-tool surface...

Troubleshooting