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XMCP

Community
Framework / SDK
A TypeScript framework for building MCP servers

This is a framework for building MCP servers or agents, not a server you connect a client to.

How to install ↓ Compare GitHub source repository ↗
Category
Dev Tools #327 of 438
Stars
★ 1.3k Very popular
Runtime
Node.js
Credentials
No credential needed
License
MIT
Last commit
⚠
43FMRS · D

The source identifies xmcp as an MIT-licensed TypeScript MCP framework maintained by basement.studio. It provides file-system routing, hot reloading, middleware, extensible configuration, platform-flexible deployment, and Vercel support. The source does not provide specific MCP tools, transport protocols, client compatibility, or a client configuration example.

Strongest · Setup experience 11/20 Weakest · Reliability 5/20

Reliability
5/20
Security and permissions
8/20
Maintenance
10/20
Documentation
9/20
Setup experience
11/20
Why each score
Reliability 5/20
Only the README is provided; the manifest is not cached, and no source code, tests, or CI evidence is available. MCP initialization, tool-list handshake, actual tool behavior, error handling, and dependency control cannot be verified. The README makes a happy path plausible, but the evidence is insufficient, so substantial points are deducted.
Security and permissions 8/20
The README mentions authentication and middleware support and provides a security-report email. However, no source code or configuration examples verify least privilege, credential handling, data boundaries, external network behavior, or confirmation for dangerous operations. No stated red-line risk is visible, but missing evidence warrants a significant deduction.
Maintenance 10/20
The repository is not archived and lists an MIT license and a security-report channel. The supplied material does not establish release cadence, commit activity, issue response, dependency updates, or sustained ownership. The license and reporting channel support a mid-range score, while maintenance evidence remains limited.
Documentation 9/20
The README states the project purpose, provides quick-start commands, lists major features, links to documentation, and gives a security-report method. It does not provide authentication configuration, tool parameters, limits, cost information, platform-specific details, troubleshooting, or reviewable end-to-end examples. The unavailable full documentation is treated as missing evidence.
Setup experience 11/20
The README supplies two initialization paths, create-xmcp-app and init-xmcp, and claims support for Next.js, Express, any platform, and Vercel. It does not state runtime prerequisites, provide mainstream MCP client connection configuration, explain authentication steps, or include verifiable end-to-end execution evidence, so the score is conservatively above average but limited.

Static review · not runListed 2026-07-29

Read the FMRS scoring method →

Fit and risk

Best for

  • MCP developers using or adopting TypeScript
  • Projects that benefit from hot reloading and file-system routing
  • MCP server projects requiring extensible configuration and middleware support

Not for

  • Users seeking a ready-to-connect MCP server with prebuilt business tools
  • Users needing documented client compatibility, transport details, or a built-in tool inventory

Required permissions

  • The README does not specify concrete runtime system, file, or network permissions
  • If authentication or custom middleware is used, required permissions depend on the developer's configuration

Risks and side effects

  • This is a framework for developing MCP servers, not a ready-made business-tool server
  • Authentication and custom middleware must be configured by the developer, and misconfiguration may create security issues
  • Deployment and platform configuration may introduce operational risks; the README does not provide specific security settings

Setup

Before you start

Runtime：Node.js

For a new application, run npx create-xmcp-app@latest. To initialize xmcp in an existing Next.js or Express project, run npx init-xmcp@latest. See xmcp.dev and its documentation for more information.

Check that it works

Run npx create-xmcp-app@latest to bootstrap a project and start the dev server; hot reloading and auto-registration of tools from the tools directory confirm the installation works.

Troubleshooting

  1. Confirm that the Node.js project environment and npx command are available
  2. Use create-xmcp-app@latest for a new project and init-xmcp@latest for an existing Next.js or Express project
  3. Check that the tools and prompts directories follow the file-system routing convention
  4. Review MCP server configuration, middleware, and deployment-platform settings
  5. Report security vulnerabilities to [email protected]

Use cases

Build MCP servers with TypeScript
Automatically register tools and prompts through file-system routing
Configure authentication or custom middleware for an MCP server
Deploy MCP servers across platforms or with Vercel

Overview

xmcp is a framework for building and shipping MCP servers with TypeScript. It is designed to streamline development and lower the barrier to creating tools in the Model Context Protocol ecosystem.

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Source revision 2e4a09f3fdca Data synced 2026-10-19 Read the FMRS scoring method