Connects to Yahoo Finance's public API to pull real-time market data into your Claude workflows. The server exposes four main operations: search for tickers and symbols, get current quotes with price and volume, fetch historical chart data, and retrieve detailed quote summaries with fundamentals. Reach for this when you need to analyze stock performance, compare securities, or pull financial metrics without leaving your conversation. The tool calls show heavy usage of search and quote lookups, suggesting it's being used primarily for quick price checks and ticker discovery rather than deep fundamental analysis. Works over HTTP and handles the Yahoo Finance API authentication and rate limiting for you.