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mcpwall

MCP server behrensd/mcp-firewall/io.github.behrensd/mcpwall

iptables for MCP — blocks dangerous tool calls, scans for secrets, logs everything.From the repository description

InstallClaude Code
claude mcp add firewall -- npx -y mcpwall

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

  • no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
  • 4 stars4 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

Keep looking

MCP servers are one crate of 326,861. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.