crypto-price-mcp-server

API keys for external services (Resend, CoinMarketCap, Moralis, Etherscan) are correctly loaded from environment variables or a configuration file, not hardcoded. The server can run as an HTTP service using Fastify, which is a robust framework. Outbound network requests are made to various crypto data providers and blockchain RPCs. A potential minor risk is the `convertMarkdownToHtml` function in `EmailService`: if the `content` or `additionalInfo` parameters for email templates were to receive unsanitized, malicious markdown/HTML directly from an untrusted source (e.g., a vulnerable LLM output), it could potentially lead to XSS vulnerabilities in the recipient's email client. However, this is a common risk with HTML templating and requires careful input handling by the calling agent.