Firewall

Name: Firewall
Author: behrensd

Deterministic security proxy (iptables for MCP) that intercepts tool calls, enforces YAML policies, scans for secret leakage, and logs everything. No AI, no cloud.

securityai

By behrensd

Installation

npx -y mcp-firewall

Configuration

{
  "mcpServers": {
    "mcp-firewall": {
      "command": "npx",
      "args": ["-y", "mcp-firewall"]
    }
  }
}

How to use

Run the installation command above (if needed)
Open your Claude Code settings file (~/.claude/settings.json)
Add the configuration to the mcpServers section
Restart Claude Code to apply changes

View source on GitHub

Firewall

Installation

Configuration

How to use

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