Koskamo

mcpwall MCP

mcpwall is a deterministic security proxy for MCP tool calls that acts as an iptables-like firewall. It sits between AI coding tools and MCP servers, intercepting JSON-RPC messages to block dangerous tool calls, scan for secret leakage, and log all activity using zero AI and pure YAML-defined rules.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

mcpwall MCP logo, by behrensdCommunity listingLocal stdioSource reviewed; not executedPublished by behrensd
You need:Install npm install -g mcpwall
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 5 GitHub stars

What you can do with it

  • Block sensitive file access like .ssh/ and .env
  • Block dangerous commands such as rm -rf and reverse shells
  • Scan for secret leakage including API keys and tokens
  • Log every tool call and response in JSON Lines format

Source and maintenance

Community listingRegistry 0.1.2Apache-2.0
mcp-registry: io.github.behrensd/mcpwall@0.1.2Source repository
Last repository push
Latest release
v0.2.0
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

mcpwall 0.1.2

npm
mcpwall package definition
{
  "version": "0.1.2",
  "transport": "stdio",
  "identifier": "mcpwall",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mcpwall-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcpwall@0.1.2"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mcpwall-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcpwall@0.1.2"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mcpwall-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcpwall@0.1.2"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mcpwall-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcpwall@0.1.2"
      ]
    }
  }
}

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