sendify-dbschenker-mcp

The server's core functionality involves interacting with an external DB Schenker API that employs a browser-bound CAPTCHA challenge. The server includes a reimplemented, pure JavaScript proof-of-work algorithm to automatically solve these CAPTCHAs. There are no indications of 'eval', code obfuscation, or hardcoded sensitive secrets in the provided source code. Network requests are handled with retries, exponential backoff, and clear error differentiation (rate limiting vs. CAPTCHA challenges). An in-memory cache is used for CAPTCHA-blocked results to prevent redundant API calls. The primary security consideration is the ongoing reliability of the reverse-engineered CAPTCHA solving algorithm if the upstream API's challenge mechanism changes, requiring updates to the server.