About This Site
Desktop app securing AI apps from attacks by monitoring MCP communications. MCP Defender is a desktop application designed to automatically secure AI apps like Cursor, Claude, Visual Studio Code, and Windsurf from various attacks. It functions as an AI Firewall, monitoring and protecting Model Context Protocol (MCP) communications by intercepting tool calls and responses. It verifies these against security signatures and alerts the user if it detects any malicious activity, allowing them to block or allow the action. It provides intelligent LLM-powered threat detection and acts as a secure proxy, analyzing communications in real-time.
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Key Features AI
Core Features
AI Firewall for AI apps
Intelligent LLM-powered Threat Detection
Scan Control for managing security signatures
Automatic real-time protection of MCP tool calls
Intercepts and verifies tool calls and responses
Supports multiple AI applications (Cursor, Claude, VS Code, Windsurf)
Open Source
Advantages
Provides automatic, real-time security for AI applications.
Utilizes advanced LLM-powered detection for malicious activity.
Protects against specific and common AI security threats (Prompt Injection, Credential Theft, Arbitrary Code Execution, Remote Command Injection).
Supports popular AI tools like Cursor, Claude, and VS Code.
Offers user control to block or allow detected actions.
It is open source, allowing for transparency and community contributions.
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