exchange-rate-mcp

The server correctly uses environment variables for sensitive API keys, preventing hardcoding. It employs `httpx` for network requests, a standard and secure library. Robust error handling is implemented for various API response errors (e.g., invalid key, unknown currency, quota reached). No 'eval', obfuscation, or other known malicious patterns were identified in the provided source code. The server's functionality relies on an external API, which is an inherent part of its design, and potential risks associated with that API (e.g., its availability or data integrity) are external to this specific server's code security.