dealengine-mcp-nano

The server uses environment variables for sensitive API keys (NOTION_API_KEY), which is good practice. It handles errors and logs details. However, there is no explicit input validation or sanitization of the `req.body` payloads before they are passed directly to the Notion API. This means a malicious or malformed request from an upstream client could potentially lead to unexpected behavior, API errors, or rate limit issues on the Notion side. The `console.error` logging of `err.response?.data` could also expose internal Notion API error structures if not managed in a production environment.