MCP-Defender

by MCP-Defender · Developer Tools · ★ 255

MCP-Defender is an MCP server by MCP-Defender. Desktop app that automatically scans and blocks malicious MCP traffic in AI apps like Cursor, Claude, VS Code and Windsurf. It has 255 GitHub stars and ranks #316 of 2217 in Developer Tools by stars.

Category: Developer Tools
Author: MCP-Defender
GitHub stars: 255
This week: Tracking since 18 Oct 2026
Language: TypeScript
License: AGPL-3.0 (open source)
Last update: 2026-06-05 (5 months ago)
Links: Source Website

ai-tools
mcp
mcp-client
mcp-client-security
mcp-security
mcp-server
mcp-tools
model-context-protocol

How to install MCP-Defender

Install steps differ per project, so follow the README in the MCP-Defender repository. Most MCP servers start with a single command (npx -y <package>, uvx <package> or a Docker image) that you add to your client's config. The install guide shows where that goes in Claude Code, Claude Desktop, Cursor and VS Code.

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Frequently asked questions

What is MCP-Defender?

MCP-Defender is an MCP server by MCP-Defender in the Developer Tools category. Desktop app that automatically scans and blocks malicious MCP traffic in AI apps like Cursor, Claude, VS Code and Windsurf. It has 255 GitHub stars and ranks #316 of 2217 in Developer Tools by stars. It is written in TypeScript. It is licensed under AGPL-3.0. It was last updated 5 months ago.

Is MCP-Defender free and open source?

Yes. MCP-Defender is published under the AGPL-3.0 license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

What are the alternatives to MCP-Defender?

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.