{"service":"Market Realtime Data","version":"2.0.0","endpoints":{"US stocks":["/prices","/options","/iv","/vix","/portfolio"],"Taiwan stocks":["/tw/prices","/tw/{stock_id}"],"Risk metrics":["/risk/{ticker}?period=1y&risk_free=0.05"],"Macro (FRED)":["/macro"],"Utility":["/health"]}}