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mcp-for-next.js

Stateless MCP server route for a Next.js App Router app

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Stars
373
License
MIT
Last commit
Jul 2026
Language
JavaScript

Overview

Next.js App Router project where app/mcp/route.ts hosts a stateless MCP server through mcp-handler 2 and the MCP TypeScript SDK v2, serving the 2026-07-28 protocol natively with a compatibility layer for 2025-era Streamable HTTP clients. Includes a sample client script that lists tools and calls echo. For teams adding an MCP endpoint to an existing Next.js app on Vercel; no auth is wired.

Who it is for: Next.js teams exposing tools to MCP clients

Strengths

  • Stateless Streamable HTTP; no Redis or session store required
  • Current 2026-07-28 protocol plus 2025 Streamable HTTP compatibility
  • Sample client script for smoke-testing the endpoint

Weaknesses

  • No auth; remote MCP clients will need OAuth added
  • Deprecated HTTP+SSE transport is not supported
  • Only an echo tool; the README is a few lines
  • No tests or Docker

What it needs

  • JavaScript, MCP TypeScript SDK v2, mcp-handler 2

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