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MCP Output Firewall

io.github.tangfei7777-cell/mcp-output-firewall v0.3.0

Official Registry git security

Repository

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

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Install connect locally via stdio

Run in your terminal

claude mcp add mcp-output-firewall -- npx -y mcp-output-firewall

Add to claude_desktop_config.json

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

Add to ~/.cursor/mcp.json

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

Add to ~/.codeium/windsurf/mcp_config.json

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

Add to .vscode/mcp.json

{
  "servers": {
    "mcp-output-firewall": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-output-firewall"
      ]
    }
  }
}

Add to cline_mcp_settings.json

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

Packages

npm mcp-output-firewall@0.3.0

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