Roblox Studio MCP Server

Roblox Studio MCP Server

A powerful MCP (Model Context Protocol) server that gives AI assistants comprehensive access to Roblox Studio projects. Explore game architecture, analyze scripts, debug issues, and understand complex Roblox projects through 18 specialized AI tools including mass operations for bulk editing.

⚡ Quick Start (One Command)

For Claude Code users:

For other MCP clients (Claude Desktop, etc.):

🔌 Studio Plugin Setup (Required)

The MCP server requires a companion Roblox Studio plugin:

1. Roblox Creator Store (Easiest ⭐):
   • Install from: https://create.roblox.com/store/asset/132985143757536
   • Click "Install" → Opens in Studio automatically
2. Manual download:
   • Download MCPPlugin.rbxmx
   • Save to your %LOCALAPPDATA%/Roblox/Plugins folder
3. Advanced setup:
   • See studio-plugin/INSTALLATION.md for other methods

After installation:

• ✅ Enable "Allow HTTP Requests" in Game Settings → Security
• 🔘 Click the "MCP Server" button in the Plugins toolbar
• 🟢 Status should show "Connected" when working

🏗️ Architecture Overview

This is a dual-component system bridging Roblox Studio with AI assistants:

Key Components:

• 🧠 MCP Server (Node.js/TypeScript) - Exposes 18 tools via stdio for AI integration
• 🔗 HTTP Bridge - Request/response queue on localhost:3002 with 30s timeouts
• 🎮 Studio Plugin (Luau) - Polls every 500ms, executes Studio API calls, handles errors
• 📊 Smart Caching - Efficient data transfer with intelligent response limiting

🛠️ 18 Powerful AI Tools

📁 File System Tools

• get_file_tree - Complete project hierarchy with scripts, models, folders
• search_files - Find files by name, type, or content patterns

🎯 Studio Context Tools

• get_place_info - Place ID, name, game settings, workspace info
• get_services - All Roblox services and their child counts
• search_objects - Find instances by name, class, or properties

🔍 Instance & Property Tools

• get_instance_properties - Complete property dump for any object
• get_instance_children - Child objects with metadata (scripts, GUI types, etc.)
• search_by_property - Find objects with specific property values
• get_class_info - Available properties/methods for Roblox classes

⚡ Property Modification Tools

• set_property - Set a property on any Roblox instance
• mass_set_property - 🆕 NEW! Set the same property on multiple instances at once
• mass_get_property - 🆕 NEW! Get the same property from multiple instances at once

🏗️ Object Creation Tools

• create_object - Create a new Roblox object instance (basic)
• create_object_with_properties - 🆕 NEW! Create objects with initial properties
• mass_create_objects - 🆕 NEW! Create multiple objects at once (basic)
• mass_create_objects_with_properties - 🆕 NEW! Create multiple objects with properties
• delete_object - Delete a Roblox object instance

🏢 Project Analysis Tools

• get_project_structure - 🔥 ENHANCED! Smart hierarchy with improved depth control (recommended: depth 5-10)

⚠️ Note: Previous tools like get_file_content, get_file_properties, get_selection, get_dependencies, and validate_references have been removed. Use Rojo/Argon workflows or file system reading for better performance.

🧠 AI-Optimized Features

🚀 Mass Operations (NEW in v1.3.0)

• Bulk Property Editing: Set the same property on hundreds of instances instantly
• Mass Object Creation: Create complex object hierarchies with one call
• Batch Property Reading: Get properties from multiple objects efficiently
• Atomic Operations: All mass operations are grouped into single undo/redo waypoints

Example Use Cases:

Smart Project Structure

• Service Overview Mode: Clean service list with child counts
• Path-based Exploration: get_project_structure("game.ServerStorage", maxDepth=5)
• Script-only Filtering: scriptsOnly=true for code analysis
• Intelligent Grouping: Large folders auto-group by class type
• Enhanced Depth Control: Recommended maxDepth=5-10 for comprehensive exploration

Rich Metadata

• Script Status: Enabled/disabled, source detection, script types
• GUI Intelligence: Text content, visibility, container vs interactive
• Performance Optimized: Removed redundant tools for faster operation

🚀 Development & Testing

Commands

Plugin Development

• Live reload: Plugin updates automatically detect server changes
• Error handling: Robust timeout and retry mechanisms
• Debug mode: Detailed logging in Studio Output window
• Connection status: Visual indicators in plugin UI

📊 Communication Protocol

Features:

• 🕐 30-second timeouts with exponential backoff
• 🔄 Automatic retries for network issues
• 📏 Response limiting prevents context overflow
• 🎯 Request deduplication for efficiency

🎯 Example Usage

🔧 Configuration

Environment Variables:

• MCP_SERVER_PORT - MCP server port (default: stdio)
• HTTP_SERVER_PORT - HTTP bridge port (default: 3002)
• PLUGIN_POLL_INTERVAL - Plugin poll frequency (default: 500ms)
• REQUEST_TIMEOUT - Request timeout (default: 30000ms)

Studio Settings:

• ✅ Allow HTTP Requests (Game Settings → Security)
• 🌐 HttpService.HttpEnabled = true
• 🔌 Plugin activated via toolbar button

📋 Changelog

v1.3.0 - Mass Operations Update (Latest)

• ➕ NEW: mass_set_property - Bulk property modification
• ➕ NEW: mass_get_property - Batch property reading
• ➕ NEW: create_object_with_properties - Object creation with initial properties
• ➕ NEW: mass_create_objects - Bulk object creation
• ➕ NEW: mass_create_objects_with_properties - Bulk creation with properties
• 🔥 ENHANCED: get_project_structure with improved depth parameter documentation
• 🗑️ REMOVED: get_file_content, get_file_properties, get_selection, get_dependencies, validate_references (use Rojo/Argon workflows instead)
• ⚡ PERFORMANCE: Streamlined API with 18 focused tools vs 15 mixed-purpose tools

v1.2.0 - Property Modification

• ➕ Added set_property tool for instance modification
• ➕ Added create_object and delete_object tools
• 🔧 Enhanced error handling and validation

v1.1.0 - Enhanced Discovery

• 🔍 Improved project structure analysis
• 📊 Better metadata extraction
• 🎯 Script and GUI intelligence

📄 License

MIT License - Feel free to use in commercial and personal projects!