Lightweight liquidation-alert slice for one EVM address and chain, combining Aave V3 health factor and Compound III liquidation status into urgency and drop-to-liquidation thresholds. Returns JSON. Price 0.10 USDC on Base via x402. Demo/preview: https://wallet-portfolio-risk-mcp.mtree.workers.dev/demo/liquidation_alert_threshold. Contact: https://wallet-portfolio-risk-mcp.mtree.workers.dev/contact.