@gatorsecurity/mcp-gateway

MCP Gateway - stdio MCP proxy with telemetry and policy enforcement.

Overview

G8R MCP Gateway sits between your client (Claude Code, VSCode Copilot, etc.) and your MCP servers, providing:

• Policy enforcement: Block tools, filter arguments, restrict domains
• Telemetry: Log all tool calls to G8R platform for audit
• Observability: See what AI agents are doing in real-time

Installation

npm install -g @gatorsecurity/mcp-gateway

Or use via npx:

npx @gatorsecurity/mcp-gateway --config ./mcp-config.json

Usage with VSCode / Claude Code

• In VSCode: MCP: Add Server...: choose stdio, then enter the command:

  npx @g8r/mcp-gateway ...

• For Claude Code, add the server configuration in .claude/mcp_servers.json:

  {
    "mcpServers": {
      "g8r": {
        "type": "stdio",
        "command": "npx",
        "args": ["@gatorsecurity/mcp-gateway", "--upstream", "npx", "--upstream-args", "@modelcontextprotocol/server-filesystem,/path/to/allowed"]
    }
  }

Configuration

The gateway requires authentication. First login with the G8R CLI:

npx @gatorsecurity/cli login

Then configure your upstream MCP servers in ~/.g8r/mcp.json:

{
  "servers": {
    "filesystem": {
      "command": "npx",
      "args": ["@modelcontextprotocol/server-filesystem", "/allowed/path"]
    }
  }
}

Environment Variables

• G8R_API_URL - Platform API URL (default: https://api.g8r.dev)
• G8R_DEBUG - Enable debug logging

Related Packages

• @gatorsecurity/cli - G8R CLI for authentication and server management

License

MIT