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MCP Proxy

by punkpeye

API/Gateways & ProxiesSSEProxyTypeScriptstdio

MCP Proxy is a TypeScript SSE proxy for MCP servers that use `stdio` transport. It enables SSE for MCP servers.

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Last updated: N/A

What is MCP Proxy?

MCP Proxy is a TypeScript-based proxy server designed to facilitate communication between Model Context Protocol (MCP) servers and clients using Server-Sent Events (SSE) over a stdio transport. It acts as an intermediary, forwarding messages between the MCP server and the client, enabling real-time data streaming.

How to use MCP Proxy?

MCP Proxy can be used via command-line or the Node.js SDK. The command-line interface allows for quick setup and execution, while the Node.js SDK provides more granular control and integration options. The SDK offers utilities like proxyServer for setting up a general proxy, startSSEServer for creating an SSE server, and tapTransport for debugging.

Key features of MCP Proxy

  • SSE Support

  • TypeScript Implementation

  • Command-line Interface

  • Node.js SDK

  • CORS Enabled

  • stdio Transport

Use cases of MCP Proxy

  • Enabling SSE for MCP Servers

  • Real-time data streaming between MCP servers and clients

  • Proxying MCP communication

  • Debugging MCP transport

  • Integrating MCP with web applications

FAQ from MCP Proxy

What is MCP?

MCP stands for Model Context Protocol.

What is SSE?

SSE stands for Server-Sent Events, a server push technology enabling real-time data streaming to clients.

How do I install MCP Proxy?

You can install it using npm install mcp-proxy.

How do I start the proxy server?

You can start it using the command-line interface with npx mcp-proxy --port 8080 --endpoint /sse tsx server.js or using the Node.js SDK.

Is CORS enabled?

Yes, CORS is enabled by default.