MCP Helmet

4

Production middleware toolkit for building MCP servers, adding authentication, health checks, rate limiting, and graceful shutdown to MCP applications.

GitHub
Category MCP Servers
Added May 20, 2026
Views 36

About

MCP Helmet is a composable middleware layer wrapping the official Model Context Protocol SDK with production-ready features. It provides auto transport detection for stdio and HTTP, built-in auth middleware for bearer tokens and API keys, health checks, graceful shutdown, rate limiting, request logging, and a CLI scaffolder for new projects. Available as the npm package mcp-helmet.

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