MCPFirewall Documentation
Every AI assistant calls MCP tools. Not every call should be trusted.
MCPFirewall is a protocol-aware firewall that sits between your AI clients and MCP servers. It gives you visibility into every tool call, lets you approve or block requests in real time, and keeps credentials encrypted in a local vault.
Everything runs locally on your machine. No account required.
Where to start
Section titled “Where to start”- Install the desktop app or CLI binary
- Quick Start to connect your first AI client and MCP server (desktop)
- Quick Start (CLI) if you prefer the terminal
- How It Works for a two-minute overview of the proxy architecture
- The 3-State Model to understand enabled, approval, and disabled tool states
- Approve Requests to set up human-in-the-loop tool review
- CLI Commands for the full command reference