navermap-mcp-server

The server demonstrates strong security practices: API keys are loaded from environment variables and never hardcoded, with `src/config.ts` ensuring proper validation and presence checks. Input validation is rigorously enforced using Zod schemas for all tool arguments, preventing common injection vulnerabilities. Error handling differentiates between user-facing messages and internal details, limiting sensitive information exposure. API calls use `fetch` with explicit timeouts and exponential backoff retry logic, enhancing resilience. The Billing API client implements HMAC-SHA256 signing for requests. All tools are declared as read-only, reducing the scope of potential exploits. No direct use of `eval` or unsanitized `child_process` execution is apparent. The `README` explicitly warns users about API key security and potential costs.