Shield MCP
by shieldmcp
Shield MCP is a security middleware for Model Context Protocol (MCP) servers. It enhances security and monitoring capabilities without modifying the official SDK.
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What is Shield MCP?
Shield MCP is a security middleware designed to protect Model Context Protocol (MCP) servers. It provides a suite of tools to secure and monitor MCP tool calls, ensuring best practices in security and abstracting complexities during MCP development.
How to use Shield MCP?
To use Shield MCP, install the package, configure allowed tools, sanitizers, and rate limits, and then apply the @secure_tool decorator to your MCP tools. You can also use the individual components like ToolAudit, ToolAccess, ToolSanitizer, and RateLimitConfig directly.
Key features of Shield MCP
Tool Access Control
Result Sanitization
Structured Logging
Rate Limiting
Error Handling
MCP Inspector Compatible
Use cases of Shield MCP
Securing MCP tool calls
Monitoring MCP tool usage
Preventing unauthorized access to tools
Sanitizing sensitive data in tool outputs
Limiting the rate of tool calls to prevent abuse
FAQ from Shield MCP
What is Tool Access Control?
What is Tool Access Control?
Whitelist-based access control that allows you to specify which MCP tools are allowed to be called.
How does Result Sanitization work?
How does Result Sanitization work?
It allows you to configure sanitization rules to remove or mask sensitive data from tool outputs.
What kind of logging does Shield MCP provide?
What kind of logging does Shield MCP provide?
Comprehensive audit logging using structlog, providing structured logs for better analysis.
How does Rate Limiting prevent abuse?
How does Rate Limiting prevent abuse?
It uses a token bucket algorithm to limit the number of requests per minute, preventing excessive usage.
Is Shield MCP compatible with the MCP Inspector tool?
Is Shield MCP compatible with the MCP Inspector tool?
Yes, Shield MCP is designed to work seamlessly with the MCP Inspector tool.