MCP Firewall vs Clawguard MCP

In-depth architectural comparison of the MCP Firewall and Clawguard MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose MCP Firewall when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: YAML-based inbound and outbound policies, Secret scanning with regex and entropy checks, Response redaction and prompt-injection blocking.

Explore MCP Firewall Details

Choose Clawguard MCP when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Freemium).
• You have access to required keys: CLAWGUARD_API_KEY, CLAWGUARD_BASE_URL.
• Primary tools included: scan_text, scan_batch, get_patterns.

Feature & Specification Comparison

Specification	MCP Firewall behrensd Security	Clawguard MCP joergmichno Security
Summary	Deterministic security proxy (iptables for MCP) that intercepts tool calls, enforces YAML policies, scans for secret leakage, and logs everything. No AI, no cloud.	Security scanner for AI agents that detects prompt injections using 42+ regex patterns
Category & Scope	Security

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

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

{
  "mcpServers": {
    "joergmichno-clawguard-mcp": {
      "command": "uvx",
      "args": [
        "clawguard-mcp"
      ],
      "env": {
        "CLAWGUARD_API_KEY": "YOUR_CLAWGUARD_API_KEY_HERE",
        "CLAWGUARD_BASE_URL": "YOUR_CLAWGUARD_BASE_URL_HERE"
      }
    }
  }
}

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