Multi-Component System with A2A and MCP Server Integration

What is Multi-Component System with A2A and MCP Server Integration?

A scalable multi-component system built with modern web technologies. It integrates a React/TypeScript frontend, a Python/FastAPI backend API, a Node.js proxy server, an A2A (Agent-to-Agent) server following Google’s A2A protocol, and an MCP (Model Context Protocol) server implementing Anthropic’s protocol. Designed for developers building agent-based applications with real-time communication and modular architecture.

How to use Multi-Component System with A2A and MCP Server Integration?

Install prerequisites (Node.js 20+, Python 3.11+, npm or yarn). Run each service in its own process: API Backend (cd api; pip install -r requirements.txt; python main.py), Frontend (cd frontend; npm install; npm run dev), Proxy Server (node proxy-server.js), A2A Server (cd a2a-server; node simple-server.js), and MCP Server (cd mcp-server; pip install -r requirements.txt; python mcp_server.py). Integration tests are available in the tests directory.

Key features of Multi-Component System with A2A and MCP Server Integration

• React/TypeScript frontend with Material-UI and Zustand state management
• Python/FastAPI backend with health check and API documentation
• Node.js reverse proxy routing requests to appropriate services
• A2A server enabling agent-to-agent task and message exchange
• MCP server providing tools, resources, and prompts with SSE support
• WebSocket support for real-time communication

Use cases of Multi-Component System with A2A and MCP Server Integration

• Building agent-based applications that communicate via the A2A protocol
• Exposing tools, resources, and prompt templates through the MCP protocol
• Creating a dashboard with real-time data streaming via SSE
• Developing a scalable multi-service architecture with a central proxy
• Running integration tests for agent communication flows

FAQ from Multi-Component System with A2A and MCP Server Integration

What are the prerequisites for running this system?

Node.js 20+ and Python 3.11+ are required. npm or yarn must be installed.

How do I run the application?

Each service must be run in its own process: the API backend, frontend dev server, proxy server, A2A server, and MCP server. See the “Running the Application” section in the README for detailed commands.

Are there tests available?

Yes, integration tests for the A2A server are located in the tests directory and can be run with node run-tests.js.

What endpoints does the MCP server provide?

The MCP server exposes endpoints for status, tools, resources, prompts, and an SSE event stream. Both direct (/status) and SSE-prefixed (/sse/status) paths are available.

How are requests routed between components?

A Node.js proxy server routes frontend requests to the Vite dev server, API requests to FastAPI, A2A requests to the A2A server, and MCP/SSE requests to the MCP server.