Retrieves Bitcoin Bubble Index data, measuring the degree to which Bitcoin's price deviates from fundamental value. Helps identify potential market bubbles or buying opportunities based on historical deviation patterns. Ideal for: bubble detection, risk assessment, market timing, contrarian investing signals.

Retrieves historical CDRI (CoinGlass Derivatives Risk Index) providing a 0-100 risk score for derivatives market. Higher values indicate elevated risk levels in the derivatives market. Ideal for: risk management, market timing, identifying high-risk periods, portfolio hedging decisions.