Mcp Gateway

Overview

AuthzX MCP Gateway is a policy-enforcing proxy that sits between AI agents and MCP servers, controlling access through authorization rules. It implements the Model Context Protocol, allowing Claude, Cursor, and other AI clients to interact with protected MCP resources as callable tools while maintaining fine-grained access control.

The gateway runs locally via npx -y @authzx/mcp-gateway and communicates with MCP clients over stdio. You'll need to provide YOUR_API_KEY as an environment variable to authenticate. Version 1.0.1 is the current release, distributed under the Apache-2.0 license with source code available at authzx/mcp-gateway on GitHub.

Mcp Gateway is listed in the AI & Agents category and works with all major MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this project, claim this listing to verify ownership and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "mcp_gateway": {
      "command": "npx",
      "args": [
        "-y",
        "@authzx/mcp-gateway"
      ],
      "env": {
        "YOUR_API_KEY": "<your-api-key>"
      }
    }
  }
}

Requires YOUR_API_KEY