Open MCP Client

CopilotKit/mcp-client-langgraph

A LangGraph agent that connects to MCP (Multi-Copilot Platform) servers and calls their tools, coupled with a frontend application using CopilotKit for UI and state synchronization.

Key Features:

• LangGraph Agent: Integrates with MCP servers, enabling access to a variety of tools.
• CopilotKit UI: Provides a user-friendly interface for interacting with the agent.
• State Synchronization: Ensures seamless state management between the frontend and backend.
• Modular Architecture: Code is factored into /agent (LangGraph agent) and /app (frontend application) for better organization.

Use Cases:

• Building interactive applications that leverage multiple copilot services.
• Creating custom agents with access to specialized tools.
• Developing user interfaces for managing and monitoring copilot interactions.

Development Setup:

1. Set up environment variables in .env files for both the root and /agent directories, including LANGSMITH_API_KEY and OPENAI_API_KEY.
2. Run the frontend and agent separately for easier debugging:

   # Terminal 1 - Frontend

   Copy

pnpm run dev-frontend

Terminal 2 - Agent

pnpm run dev-agent

3.  Alternatively, run both services together:
```shell
pnpm run dev

4. Access the application at http://localhost:3000.