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MCP Proxy

MCP Proxy is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. A bridge between Streamable HTTP and stdio MCP transports. It has 2,772 GitHub stars, is released under the MIT license and runs locally with uvx mcp-proxy.

github.com/sparfenyuk/mcp-proxy (opens in a new tab)

  • Needs API key
  • Other
  • MIT
  • Maintained
View on GitHub (opens in a new tab)

Install MCP Proxy

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "mcp-proxy": {
      "command": "uvx",
      "args": [
        "mcp-proxy"
      ],
      "env": {
        "API_ACCESS_TOKEN": "your-value",
        "GITHUB_PERSONAL_ACCESS_TOKEN": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env API_ACCESS_TOKEN=your-value --env GITHUB_PERSONAL_ACCESS_TOKEN=your-value --transport stdio mcp-proxy -- uvx mcp-proxy

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "mcp-proxy": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-proxy"
      ],
      "env": {
        "API_ACCESS_TOKEN": "your-value",
        "GITHUB_PERSONAL_ACCESS_TOKEN": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "api_access_token",
      "description": "API_ACCESS_TOKEN",
      "password": true
    },
    {
      "type": "promptString",
      "id": "github_personal_access_token",
      "description": "GITHUB_PERSONAL_ACCESS_TOKEN",
      "password": true
    }
  ],
  "servers": {
    "mcp-proxy": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-proxy"
      ],
      "env": {
        "API_ACCESS_TOKEN": "${input:api_access_token}",
        "GITHUB_PERSONAL_ACCESS_TOKEN": "${input:github_personal_access_token}"
      }
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
API_ACCESS_TOKENsecretNoShown in the README's example configuration.
GITHUB_PERSONAL_ACCESS_TOKENsecretNoShown in the README's example configuration.

About MCP Proxy

The mcp-proxy is a tool that lets you switch between server transports. There are two supported modes: Run a proxy server from stdio that connects to a remote SSE server.

  • mcp
  • mcp-server
  • proxy
  • sse
  • streamable-http

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FAQ

MCP Proxy FAQ

Still curious? Email info@appsgit.com.

What is MCP Proxy?

MCP Proxy is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. A bridge between Streamable HTTP and stdio MCP transports. It has 2,772 GitHub stars, is released under the MIT license and runs locally with uvx mcp-proxy. The source code is at github.com/sparfenyuk/mcp-proxy.

How do I install the MCP Proxy MCP server?

Add the command uvx mcp-proxy to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is MCP Proxy free?

The server is open source under the MIT license, so running it is free. It needs credentials (API_ACCESS_TOKEN and GITHUB_PERSONAL_ACCESS_TOKEN) for the service it connects to, which may require a paid account.

Is MCP Proxy actively maintained?

The most recent commit was on May 14, 2026. The latest release is v0.12.0, published May 14, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.