MCP Output Firewall

io.github.tangfei7777-cell/mcp-output-firewall

Three-layer firewall for MCP: content, egress and action policy. Proxy or server.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mcp-output-firewall": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-output-firewall@0.3.0"
      ]
    }
  }
}

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.3.0
Registry
active
Published
9/15/2026

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HTML — for your website

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Markdown — for your README

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Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.