mcp-typescript-sdk

• Overview
• Installation
• Quickstart
• What is MCP?
• Core Concepts
• Server
• Resources
• Tools
• Prompts
• Completions
• Sampling
• Running Your Server
• stdio
• Streamable HTTP
• Testing and Debugging
• Examples
• Echo Server
• SQLite Explorer
• Advanced Usage
• Dynamic Servers
• Low-Level Server
• Writing MCP Clients
• Proxy Authorization Requests Upstream
• Backwards Compatibility
• Documentation
• Contributing
• License

The Model Context Protocol allows applications to provide context for LLMs in a standardized way, separating the concerns of providing context from the actual LLM interaction. This TypeScript SDK implements the full MCP specification, making it easy to:

• Build MCP clients that can connect to any MCP server
• Create MCP servers that expose resources, prompts and tools
• Use standard transports like stdio and Streamable HTTP
• Handle all MCP protocol messages and lifecycle events

npm install @modelcontextprotocol/sdk

> ⚠️ MCP requires Node.js v18.x or higher to work fine.

Let's create a simple MCP server that exposes a calculator tool and some data:

import { McpServer, ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } f