{"uid":"cap_eo79owi5o47jeLRctgm8c","slug":"wintergreen-x402-quant-regime-detection-d97fa475","name":"Wintergreen x402 Quant Regime Detection","description":"Payment-gated crypto trading intelligence for AI agents.\n    \n## Categories\n- **Hyperliquid Signals**: Real-time funding divergence, lead-lag correlation, liquidation clusters, session volume area levels\n- **Quant Methodology**: Backtesting walk-forward validation, strategy generation with kill battery (19 rules), risk management with Kelly sizing, regime detection, execution frameworks, agent orchestration\n- **Market Insights**: 22 crypto microstructure observations — funding, liquidation, orderbook, regime, flow, anomaly\n- **Power Markets**: ERCOT field guide, merit-order model, duck curve analysis\n- **Career Guides**: Firefighter oral board prep, medical coding, ATSA, contractor estimating\n- **Trust Scoring**: x402 endpoint verification, P2D badges\n\n## Payment\nAll paid endpoints return HTTP 402 with USDC on Base (eip155:8453). \nSign EIP-712 TransferWithAuthorization and retry with X-PAYMENT header.\nPayTo: 0xAe9834d71F1Bd989A0dc17593451af823E31CeeD","url":"https://x402.wintergreen.uk/api/v1/quant/regime?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"symbol":{"type":"string"}}},"responseSchema":{},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UxLhAMFT0DJme0GpF35Iy","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a market regime classification for a given crypto symbol, gated behind a $0.001 USDC micropayment via x402 protocol.","exampleAgentPrompt":"What's the current quant market regime for BTC? Pay the micropayment if needed and tell me whether we're in a trending, ranging, or risk-off state.","exampleUseCases":[{"title":"Regime-gated strategy selection","prompt":"Before placing any trades today, check what quant regime BTC is in — I want to know if we're trending or ranging so I can pick the right strategy."},{"title":"Live trading bot regime filter","prompt":"My trading bot needs to know the current market regime for ETH before it opens a position — can you fetch that signal and only proceed if we're in a trending regime?"},{"title":"Multi-symbol regime scan","prompt":"Check the quant regime for SOL right now — I need to know if it's in a high-volatility or mean-reverting state before I adjust my Hyperliquid position sizing."}],"resultDescription":"A regime classification for the requested crypto symbol, likely including the current market state label (e.g. trending, ranging, risk-on/off, high/low volatility) and potentially supporting metadata such as confidence or regime scores. Response is only returned after successful USDC micropayment via x402.","failureModes":["HTTP 402 returned if payment header is missing or invalid — must sign EIP-712 TransferWithAuthorization and retry with X-PAYMENT header","Invalid or unsupported symbol returns an error or empty response","Network timeout if Base blockchain authorization is slow","Malformed payment signature causes rejection","No response schema documented — output structure may be opaque to agents without prior calls"],"whenToPreferThis":"Choose this endpoint when you need a quantitative market regime label for a specific crypto symbol in real time, especially when building regime-aware trading strategies on Hyperliquid or similar venues. Prefer it over general sentiment or price APIs when you need a structured quant classification (trending/ranging/volatility state) grounded in microstructure signals. Best suited for AI agents capable of handling x402 micropayment flows on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T06:45:17.040Z","isFirstParty":false,"canonicalSlug":"wintergreen-x402-quant-regime-detection-d97fa475"}