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js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

IMPORTANT] > This is the main branch — v2 of the SDK (@modelcontextprotocol/server, @modelcontextprotocol/client), implementing the 2026-07-28 MCP spec. > > Have feedback? Please open a v2 issue — it is the most useful thing you can do for the SDK right now.

An efficient server implies a lower cost of the infrastructure, better responsiveness under load, and happy users.

A farm of real iPhones, run from your Mac. Open-source iOS device automation with live control, a Postgres-backed scheduler, and TikTok workflows. 0.

The client above is not importing any code from the server, only its type declarations.

Pino works on Pear, which is built on Bare, with the pino-bare compatibility module.

This page is showing documentation for version v4.x.x (release notes)

Biosecurity Agent is terminal-first; view opens an optional read-only world visualizer for maps, relationships, evidence, and simulations.