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.

Related MCP server: UE5-MCP-Server

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