Record · mcp-typescriSDK / libraryOpen sourceVerified Sep 23, 2026

MCP TypeScript SDK (official)

The official TypeScript SDK for MCP servers and clients, now at v2 for the 2026-07-28 specification.

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Sources and review

Checked against public documentation on September 23, 2026. Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.

Best for

TypeScript developers building MCP servers or clients on the reference implementation.

About MCP TypeScript SDK (official)

The official MCP TypeScript SDK's v2 line, the stable release, implements the 2026-07-28 specification with separate server and client packages and optional middleware for Node.js HTTP, Express and Fastify. Version 1.x receives bug fixes and security updates for at least six months after v2's release.

MCP TypeScript SDK (official) is an open-source project written primarily in TypeScript, with 13k stars on GitHub. It was last updated in September 2026.

Install

npm install @modelcontextprotocol/server

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MCP TypeScript SDK (official) vs. the alternatives

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