TypeScript MCP SDK

The official TypeScript SDK for building Model Context Protocol (MCP) servers and clients. This SDK provides fully type-safe APIs with excellent IDE support for building robust MCP applications in the JavaScript ecosystem.

Features

• Full TypeScript support with strict type checking
• Node.js and browser compatibility
• Built-in validation with Zod schemas
• Express.js and Fastify integration
• WebSocket and HTTP transport support
• Comprehensive testing utilities with Jest
• Auto-generated API documentation

Installation

npm install @modelcontextprotocol/typescript-sdk
# or
yarn add @modelcontextprotocol/typescript-sdk
# or
pnpm add @modelcontextprotocol/typescript-sdk

Getting Started

Build type-safe MCP applications in TypeScript with full IDE support, perfect for Node.js servers and modern web applications.

Framework Integration

• Express.js: Middleware and route handlers
• Fastify: Plugin system integration
• Next.js: API routes and server components
• React: Client-side MCP integration
• Vue.js: Composables and plugins