MCP Defender
Automatically protects Cursor and other AI apps
About
MCP Defender is an AI app security solution designed to protect AI applications such as Cursor, Claude, Visual Studio Code, and Windsurf. It functions as a secure proxy, actively scanning and analyzing all Multi-Agent Communication Protocol (MCP) tool calls in real-time for potential threats. The platform utilizes advanced LLM-powered detection and deterministic signatures to provide comprehensive protection against prompt injection, credential theft, arbitrary code execution, and remote command injection. MCP Defender is open-source, licensed under AGPL-3.0, and allows users to integrate their preferred LLM provider with their own API keys. The product has recently been acquired by Docker Inc.
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