mcp-proxy

Overview

The mcp-proxy is a transport bridge for MCP servers, enabling connections between stdio and SSE/StreamableHTTP protocols. It allows clients like Claude Desktop to communicate with remote SSE servers that aren't natively supported. The tool operates in two modes: stdio to SSE/StreamableHTTP (for local clients to connect to remote servers) and SSE to stdio (for remote clients to connect to local servers). It supports authentication, CORS configuration, and named servers with comprehensive command-line options.

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Installation

pip install mcp-proxy

git clone https://github.com/sparfenyuk/mcp-proxy.git
cd mcp-proxy
pip install -e .

docker pull sparfenyuk/mcp-proxy:latest

{
  "mcpServers": {
    "mcp-proxy": {
      "command": "mcp-proxy",
      "args": [
        "http://example.io/sse"
      ],
      "env": {
        "API_ACCESS_TOKEN": "access-token"
      }
    }
  }
}

FAQ

What transport protocols does mcp-proxy support?

mcp-proxy supports two transport protocols: SSE (Server-Sent Events) and StreamableHTTP, bridging between these and stdio connections.

How do I set up authentication for the SSE server?

You can use the --headers argument with Authorization token, or set API_ACCESS_TOKEN environment variable. For OAuth2, use --client-id, --client-secret, and --token-url options.

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