Firewall

About Firewall

mcpwall (Firewall) is a local, programmable firewall for Model Context Protocol (MCP) tool calls. It acts as a transparent proxy, scanning and filtering inbound and outbound tool requests in real-time to prevent unauthorized access, secret leakage, and prompt injection. Designed for privacy-sensitive users and developers running MCP servers on their own machines, it enforces deterministic, configurable security policies entirely offline.