Frequently Asked Questions (FAQ) about express-mcp-handler

Q: What is MCP (Model Context Protocol)? A: MCP is an open protocol that standardizes how applications provide context to Large Language Models (LLMs). It allows AI models to access and interact with external data sources and tools.

Q: What is express-mcp-handler? A: express-mcp-handler is a utility for integrating MCP into Express.js applications, simplifying the process of building AI-powered applications that leverage external data and services.

Q: What are the key features of express-mcp-handler? A: Key features include stateful and stateless handler modes, a flexible and intuitive API, and comprehensive error handling.

Q: What is the difference between stateful and stateless mode? A: Stateful mode establishes persistent, reusable sessions between the client and server, while stateless mode processes each request in complete isolation.

Q: When should I use stateful mode? A: Use stateful mode for applications that require maintaining context across multiple requests, such as AI-powered chatbots or real-time data streams.

Q: When should I use stateless mode? A: Use stateless mode for simple, one-off requests where session management is not necessary, such as serverless functions or simple API endpoints.

Q: How do I install express-mcp-handler? A: Install express-mcp-handler using npm or yarn: npm install express-mcp-handler or yarn add express-mcp-handler.

Q: What are the peer dependencies of express-mcp-handler? A: The peer dependencies are express (>= 4.x) and @modelcontextprotocol/sdk.

Q: How do I integrate express-mcp-handler into my Express application? A: Import the statefulHandler and statelessHandler functions and mount them on your Express app:

ts import express from ‘express’; import { McpServer } from ‘@modelcontextprotocol/sdk/server/mcp.js’; import { statefulHandler, statelessHandler } from ‘express-mcp-handler’;

const app = express(); app.use(express.json());

app.post(‘/mcp’, statefulHandler(server, handlerOptions));

Q: Can I use express-mcp-handler with UBOS? A: Yes, express-mcp-handler seamlessly integrates with UBOS, enhancing the capabilities of the platform and enabling you to build more sophisticated AI agent solutions.

Q: Where can I find more information about MCP? A: Visit the Model Context Protocol website for more information about the protocol.

Q: Where can I find support for express-mcp-handler? A: Check the GitHub repository for issues, discussions, and contributions. You can also reach out to the UBOS community for support.