The runtime firewall for Model Context Protocol (MCP)
Project description
mcpfw — The runtime firewall for MCP
mcpfw is a runtime firewall for the Model Context Protocol (MCP). It sits between AI clients (Claude Desktop, Cursor, VS Code) and MCP servers, enforcing security policies on every tool call.
Quick Start
pip install mcpfw
mcpfw init
Then update your Claude Desktop config to wrap MCP servers:
{
"mcpServers": {
"filesystem": {
"command": "mcpfw",
"args": ["wrap", "--", "npx", "-y", "@modelcontextprotocol/server-filesystem", "/tmp/safe-dir"]
}
}
}
License
Apache 2.0
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