Skillget

MCP-Defender

mcp
Security Audit
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Health Pass
  • License — License: AGPL-3.0
  • Description — Repository has a description
  • Active repo — Last push 204 days ago
  • Community trust — 251 GitHub stars
Code Fail
  • process.env — Environment variable access in forge.config.ts
  • rm -rf — Recursive force deletion command in package.json
  • network request — Outbound network request in package.json
Permissions Pass
  • Permissions — No dangerous permissions requested

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SUMMARY

Desktop app that automatically scans and blocks malicious MCP traffic in AI apps like Cursor, Claude, VS Code and Windsurf.

README.md

Shows a black knight in light color mode and a white knight one in dark color mode.

MCP Defender

Automatically protects MCP traffic in AI apps

GitHub stars GitHub License

MCP Defender has been acquired by Docker Inc.

🛡️ MCP Defender is a desktop app that protects AI apps like Cursor from a variety of attacks.

🚦 All MCP tool call requests and responses from AI apps are automatically proxied through MCP Defender.

🔎 The intercepted data is then checked against a set of signatures.

🔐 If anything harmful is detected, MCP Defender alerts you and asks if you want to allow or block the tool call.

Demos

https://github.com/user-attachments/assets/363ae2b1-e395-4cdc-b5ca-e9862baf89c3

Quick Start

Download MCP Defender for Mac

Alternatively you can clone the git repo, and run it as follows:

# Install dependencies
npm install

# Start app
npm start

Which apps are automatically protected?

MCP Defender protects Cursor, Claude, Visual Studio Code and Windsurf.

License

MCP Defender is licensed under the AGPL-3.0 license. For more details, see the LICENSE.

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