Mcp Defender MCP Server

v1.0.0APIsstable

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

ai-toolsmcpmcp-clientmcp-client-securitymcp-security
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About

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

Features

  • Desktop app that automatically scans and blocks malicious MC

Use Cases

Desktop app that automatically scans and blocks malicious MCP traffic in AI apps
MCP-Defender

Maintainer

LicenseAGPL-3.0
Languagetypescript
Versionv1.0.0
UpdatedMay 16, 2026
Statushealthy
Maintenanceactive

Works with

ClaudeOpenAIwindowsmacoslinux

Installation

Manual Installation

npx mcp-defender

Examples

Basic Configuration

Configure Mcp Defender MCP Server

npx mcp-defender

Configuration

Configuration Details

Config File

claude_desktop_config.json

Web UI

Not available

Security

Authentication

RequiredNo

Features

Data Encryption
Audit Logging
RBAC Support

Performance

Response Metrics

Response Time< 200ms
ThroughputMedium

Resource Usage

Memory UsageLow
CPU UsageLow

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Quick Config Preview

{ "mcpServers": { "mcp-defender": { "command": "npx", "args": ["-y", "mcp-defender"] } } }

Add this to your claude_desktop_config.json or .cursor/mcp.json

Read the full setup guide →

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