CasualMarket is a full-featured Model Context Protocol (MCP) Server designed specifically for Taiwan stock trading. It consolidates 23 professional tools, providing users with a robust platform for real-time stock price inquiries, comprehensive financial analysis, detailed market information, and holiday scheduling. Built on the FastMCP framework, it boasts intelligent caching and frequency limiting mechanisms, ensuring efficient and reliable data access. The server supports a wide array of functions, from simulating trades and tracking company financials to analyzing market indices and foreign investment flows, all with a fully localized Traditional Chinese interface and consistent API format.