MCP-Shield

What is MCP-Shield?

MCP-Shield is a security scanner designed to analyze installed Model Context Protocol (MCP) servers for vulnerabilities, including tool poisoning attacks, exfiltration channels, and cross-origin escalations.

How to use MCP-Shield?

To use MCP-Shield, run the command npx mcp-shield in your terminal. You can also provide a Claude API key or specify a configuration file using the options --claude-api-key and --path, respectively.

Key features of MCP-Shield?

• 🛡️ Vulnerability Detection: Identifies hidden instructions, potential data exfiltration, tool shadowing, and sensitive file access attempts.
• 📄 Config File Support: Compatible with various config files including Cursor, Claude Desktop, Windsurf, VSCode, and Codeium.
• 🧠 Optional Claude AI Integration: Leverages Anthropic's Claude for enhanced analysis.

Use cases of MCP-Shield?

1. Scanning MCP servers before adding new tools to ensure security.
2. Conducting regular security audits of MCP configurations.
3. Validating security during the development of new MCP servers.
4. Verifying that security measures remain intact after updates to MCP servers.

FAQ from MCP-Shield?

• Can MCP-Shield detect all types of vulnerabilities?

MCP-Shield is designed to detect a wide range of vulnerabilities, particularly those related to tool poisoning and data exfiltration.

• Is MCP-Shield free to use?

Yes! MCP-Shield is open-source and free for everyone to use.

• How accurate is the vulnerability detection?

The accuracy of MCP-Shield's detection depends on the complexity of the server configurations and the specific vulnerabilities present.