Query financial market data via the Tradekix API — stock prices, crypto, forex, indices, market news, earnings, economic events, Congressional trades, and social sentiment. Use when the user asks about markets, stock prices, trading data, economic calendars, or financial news. Also handles API key signup and upgrade to Pro.

通过 Tradekix API 查询金融市场的数据，包括股票价格、加密货币、外汇、指数、市场新闻、财报、经济事件、国会交易和社会情绪。当用户询问市场、股价、交易数据、经济日历或财经新闻时使用。同时支持 API 密钥注册和升级到 Pro 版本。