01 · ABOUT

What mcp-handler does

mcp-handler is a framework-agnostic HTTP adapter for hosting Model Context Protocol (MCP) servers in JavaScript and TypeScript applications.

Why teams reach for it: It is a framework-agnostic HTTP adapter that turns an MCP server definition into a Web-standard (Request) => Promise<Response> handler, so the same MCP server can be mounted in Next.js, Nuxt/Nitro, SvelteKit, Hono or any other Fetch-compatible framework.

LibraryOpen SourceTypeScriptJavaScriptMCP Server
02 · TECHNICAL SPECIFICATIONS

How mcp-handler compares

Fields the vendor doesn't document are left blank here rather than guessed — a blank means nothing verified, not a "no."

Language
TypeScript
Official Sdk
No
Spec Revision Implemented
2026-07-28
Transports
Streamable HTTP
Builds Servers
Yes
Builds Clients
No
Auth Helpers
Built-in
Generates From Openapi
No
Mcp Apps Support
No
Server Composition
No
Package Registry
npm
Package Name
mcp-handler
03 · NEW TO MCP?
What will you use to implement the protocol?

A framework or SDK gives developers pre-built code for creating an MCP server or client, so they don't have to implement the protocol from scratch.