An open-source implementation of Rube built with Composio, empowering AI agents to interact with 500+ applications directly within your chat interface.
Rube transforms AI assistants from passive advisors into active executors. Instead of just suggesting actions, Rube-powered AI can actually perform them across hundreds of applications including Slack, Notion, GitHub, Google Calendar, Jira, HubSpot, and many more.
Built on the Composio framework, Rube automates:
- Authentication - Seamlessly connects to your apps via OAuth, API keys, and other methods
- Tool Discovery - Intelligently identifies the right tools for any task
- Execution - Performs actions across multiple applications in parallel
- Workflow Orchestration - Chains complex multi-step operations across different platforms
- AI-Powered Chat Interface - Natural language interaction powered by OpenAI GPT-4
- 500+ App Integrations - Connect to virtually any popular business application
- Secure Authentication - User authentication via Supabase with per-user app connections
- Tool Router - Automatic tool discovery and execution via Composio's experimental Tool Router
- Conversation Management - Persistent chat history and conversation tracking
- App Connection Management - Connect and disconnect apps with a user-friendly interface
- Real-time Streaming - Live AI responses with tool execution visibility
Open Rube is built with modern web technologies and leverages cutting-edge AI frameworks:
- Frontend: Next.js 15 with React 19 and TypeScript
- Styling: Tailwind CSS with custom design system
- Backend: Next.js API Routes (serverless)
- Database: Supabase (PostgreSQL)
- Authentication: Supabase Auth
- AI Framework: Vercel AI SDK with OpenAI GPT-5
- Tool Integration: Composio with Tool Router and MCP (Model Context Protocol)
Composio's experimental Tool Router is the brain of Open Rube. It:
- Discovers relevant tools from 500+ integrations based on user intent
- Manages authentication flows automatically
- Executes tools in parallel when possible
- Handles errors and retries intelligently
// Tool Router creates MCP sessions per user
const mcpSession = await composio.experimental.toolRouter.createSession(userEmail, {
toolkits: [] // Empty array allows all available tools
});MCP facilitates seamless communication between the AI model and Composio tools:
- Standardized protocol for tool discovery and execution
- Streaming HTTP transport for real-time updates
- Session-based architecture for maintaining context
User Input → GPT-5 → Tool Router → Tool Discovery → Authentication Check
→ Tool Execution → Result Processing → AI Response → User
- Users: Managed by Supabase Auth
- Conversations: Chat session tracking
- Messages: Individual message history with role-based storage
- Connected Accounts: User's authenticated app connections
Before you begin, ensure you have:
- Node.js 20+ installed
- npm, yarn, or pnpm package manager
- A Composio account and API key
- A Supabase project set up
- An OpenAI API key
-
Clone the repository
git clone https://github.com/yourusername/open-rube.git cd open-rube -
Install dependencies
npm install # or yarn install # or pnpm install
-
Set up environment variables
Create a
.env.localfile in the root directory:# Composio COMPOSIO_API_KEY=your_composio_api_key_here # OpenAI OPENAI_API_KEY=your_openai_api_key_here # Supabase NEXT_PUBLIC_SUPABASE_URL=your_supabase_project_url NEXT_PUBLIC_SUPABASE_ANON_KEY=your_supabase_anon_key NEXT_PUBLIC_APP_URL=http://localhost:3000
-
Set up Supabase database
Run the database setup script in your Supabase SQL editor to create the necessary tables for conversations and messages.
-
Configure Supabase Auth
In your Supabase project dashboard:
- Enable Google authentication and add Client Id and Client Secret
- Configure redirect URLs to include your app's domain
- Set up any additional OAuth providers if needed
-
Development mode
npm run dev # or yarn dev # or pnpm dev
-
Open your browser
Navigate to http://localhost:3000
-
Sign up/Sign in
Create an account or sign in with your credentials
-
Connect apps
Go to the "Apps" tab and connect the applications you want your AI agent to access
-
Start chatting
Ask your AI agent to perform tasks across your connected apps!
npm run build
npm startopen-rube/
├── app/
│ ├── api/ # API routes
│ │ ├── chat/ # Chat endpoint with Tool Router
│ │ ├── authConfig/ # Composio auth configuration
│ │ ├── authLinks/ # App connection management
│ │ ├── connectedAccounts/ # User's connected apps
│ │ └── conversations/ # Conversation history
│ ├── components/ # React components
│ │ ├── ChatPageWithAuth.tsx
│ │ ├── AppsPageWithAuth.tsx
│ │ ├── ToolCallDisplay.tsx
│ │ └── ...
│ ├── utils/ # Utility functions
│ │ ├── composio.ts # Composio client setup
│ │ ├── chat-history.ts # Database operations
│ │ └── supabase/ # Supabase client configuration
│ └── auth/ # Authentication pages
├── public/ # Static assets
├── package.json
└── README.md
You can customize which toolkits are available by modifying the Tool Router session creation in app/api/chat/route.ts:
const mcpSession = await composio.experimental.toolRouter.createSession(userEmail, {
toolkits: ['github', 'slack', 'gmail'] // Specify specific toolkits
});Modify the model in app/api/chat/route.ts:
const result = await streamText({
model: openai('gpt-5'), // Change to your preferred model
// ...
});- Composio Official Website
- Composio Documentation
- Composio GitHub Repository
- Tool Router Quick Start Guide
Contributions are welcome! Please feel free to submit a Pull Request.
This project is open source and available under the MIT License.