uspto_fpd_mcp

The server demonstrates strong security practices including robust API key management (using Windows DPAPI or environment variables), comprehensive log sanitization to prevent sensitive data leakage and log injection, rate limiting, request size limits, and security headers for the proxy server. It prioritizes the use of a unified secure storage system across MCPs. No 'eval' or similar dangerous patterns were found. The extensive use of error handling and feature flags for graceful degradation further enhances resilience. The reliance on environment variables for API keys, with secure storage as a primary option, is well-implemented. The internal authentication system using HMAC tokens for inter-MCP communication is a significant security improvement over passing raw API keys. A minor point deduction for the fallback to plain file storage on non-Windows systems when DPAPI is unavailable, though permissions are set restrictively.