mcp-gateway

Overview

The MCP Server Gateway solves a critical compatibility issue by translating between stdio and HTTP/SSE protocols for MCP servers. It acts as a middleware that accepts stdio input from Claude Desktop and converts it to HTTP/SSE requests for compatible MCP servers, then translates the responses back. This enables users to access HTTP/SSE-based MCP servers through Claude Desktop, which currently only supports stdio protocol. The gateway is particularly valuable as the MCP ecosystem grows with servers using different transport mechanisms.

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Installation

npm install -g @mcphub/gateway

{
  "mcpServers": {
    "server-name": {
      "command": "node",
      "args": ["/path/to/@mcphub/gateway/dist/src/mcphub-gateway.js"]
    }
  }
}

FAQ

Why do I need this gateway?

Claude Desktop currently only supports stdio protocol for MCP servers, while many MCP servers use HTTP/SSE transport. This gateway bridges that compatibility gap.

How do I configure the gateway?

Install globally via npm, configure Claude Desktop to use the gateway as an MCP server, and set the MCP_SERVER_URL environment variable to point to your desired HTTP/SSE MCP server.

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