DripMetricsAI (https://dripmetrics.ai/) provides on-demand BTC option-derived metrics that combine the Deribit option chain with DripMetrics' own trade-level realized calculations. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. VRP measures the intraday variance risk premium: shortest-dated Deribit ATM implied variance minus DripMetrics' annualized trade-level realized variance over the requested window.