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