MCP TypeScript SDK (official)
The official TypeScript SDK for MCP servers and clients, now at v2 for the 2026-07-28 specification.
Sources and review
Checked against public documentation on . Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.
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 listed in this index written primarily in TypeScript, with 14k stars on GitHub. Its latest recorded repository push was in October 2026; that is not an ASE editorial review date.
npm install @modelcontextprotocol/server