OpenCode Unreal Engine MCP Bridge

OpenCode Unreal Engine MCP Bridge

Bridges OpenCode to Unreal Engine 5 editor via a local TCP connection, enabling interaction with the editor such as querying project structure, managing assets and actors, and generating code.

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OpenCode Unreal Engine MCP Bridge

MCP server bridging OpenCode to Unreal Engine 5 editor via a local TCP connection.

How it works

  • UE Editor Plugin (C++): Runs a TCP server on port 3099. Handles tool requests for project structure, C++ classes, Blueprints, scene actors, assets, build logs, and code generation.
  • MCP Server (TypeScript): Bridges OpenCode's MCP protocol over stdio to the UE plugin's TCP socket.

Setup

  1. Enable the OpenCodeBridge plugin in Edit > Plugins.
  2. Run npm install then npm run build.
  3. Launch OpenCode from the project root. The MCP server starts automatically.

Available Tools

  • ping - Check editor connection
  • get_project_structure - Project modules, plugins, content dirs
  • get_scene_hierarchy - All actors in the level
  • execute_console_command - Run console commands
  • search_assets - Search the asset registry
  • get_asset_details - Get metadata for an asset
  • get_class_details - Get C++ class reflection info
  • get_module_dependencies - Parse Build.cs dependencies
  • get_plugin_list - List enabled plugins
  • get_output_log - Get recent log messages
  • get_build_logs - Get build log entries
  • get_compilation_status - Check hot-reload state
  • get_blueprint_list - List Blueprint assets
  • get_selected_actors - Get editor selection
  • get_actor_details - Get actor properties
  • set_actor_property - Set a property on an actor
  • generate_code - Write code to project source
  • search_classes - Search C++ classes
  • get_cpp_hierarchy - Get class hierarchy
  • get_material_graph - Dump material node graph

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