mcp-proxy

What is this MCP

MCP Proxy is a TypeScript-based Server-Sent Events (SSE) proxy designed to facilitate communication with MCP servers using stdio transport. It enables CORS by default and can be used to bridge SSE connections with MCP-compatible servers.

How to use this MCP

Install via npm (npm install mcp-proxy) and use either the command-line interface (npx mcp-proxy) or the Node.js SDK to set up a proxy server. The SDK provides utilities like proxyServer, startSSEServer, and tapTransport for flexible integration.

What this MCP can be used for

MCP Proxy is useful for enabling real-time communication between MCP servers and clients via SSE. It can be used in projects like FastMCP to provide SSE capabilities, debug transports, or bridge different communication protocols.