Loomal

iptables for MCP — blocks dangerous tool calls, scans for secrets, logs everything.

3 starsnpm: mcpwall

About mcpwall

mcpwall is an MCP (Model Context Protocol) server published by behrensd in the official MCP registry, listed under Security on Loomal. iptables for MCP — blocks dangerous tool calls, scans for secrets, logs everything.

It ships as an npm package (mcpwall), so any MCP client that can launch a local process can run it.

Development happens in the open at github.com/behrensd/mcp-firewall, where the project has earned 3 GitHub stars.

Use mcpwall with your agent

Claude Code · one command
claude mcp add mcpwall -- npx -y mcpwall
Claude Desktop, Cursor & other MCP clients · config
{
  "mcpServers": {
    "mcpwall": {
      "command": "npx",
      "args": [
        "-y",
        "mcpwall"
      ]
    }
  }
}
npmmcpwall

Frequently asked questions

What is mcpwall?
mcpwall is an MCP (Model Context Protocol) server by behrensd in the Security category. iptables for MCP — blocks dangerous tool calls, scans for secrets, logs everything.
How do I connect mcpwall to Claude, Cursor, or another MCP client?
Install mcpwall from its npm package (mcpwall) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.
Is mcpwall open source?
Yes — the source code is public at github.com/behrensd/mcp-firewall, with 3 GitHub stars.
Can AI agents pay to use mcpwall?
Not yet through Loomal — mcpwall is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.

Listing data from the official MCP registry and GitHub, refreshed periodically. Not affiliated with the maintainer unless claimed. Maintain mcpwall? Claim this listing free by verifying GitHub ownership, or contact us.