mcpwallSecurityDeveloper ToolsbehrensdAlicense-qualityCmaintenancemcpwall is a deterministic security proxy for MCP tool calls — iptables for MCP. It sits between the MCP client and server, intercepting every JSON-RPC request and enforcing YAML-defined policies. Updated a month ago (2026-07-13 18:34 UTC)1264Apache 2.0