{"uid":"cap_s3BlpE3RxaLJdjbmd4bRK","slug":"quantx402-multi-asset-market-signal-api-ce0b03df","name":"QuantX402 Multi-Asset Market Signal API","description":"Signal Blend: one merged multi-source fact list per symbol: Kronos signal + market data (momentum, volatility range, invalidation check) with a stance and plain-English reasons, plus a prediction_markets block: nearest-dated Polymarket \"above $X\" market prices next to an experimental model view of our volatility-based range (not odds). News/sentiment inputs rolling out. Experimental. Not financial advice.","url":"https://quantx402.app/api/v1/signal?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["symbol"],"properties":{"tf":{"enum":["15m","1h","4h","1d"],"type":"string","description":"Candle timeframe"},"symbol":{"enum":["BTC-USD","ETH-USD","SOL-USD","XRP-USD","BNB-USD","DOGE-USD","ADA-USD","AVAX-USD","LINK-USD","SUI-USD"],"type":"string","description":"Crypto pair (BTC-USD, ETH-USD, SOL-USD, XRP-USD, BNB-USD, DOGE-USD, ADA-USD, AVAX-USD, LINK-USD, SUI-USD). US stocks & ETFs: /api/v1/stocks/forecast. Any other symbol: /api/v1/forecast/on-demand"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"stance":"LEAN_UP | LEAN_DOWN | NO_EDGE","symbol":"BTC-USD","odds_up":"number 0-1 (share of Kronos paths finishing higher)","reasons":["plain-English strings"],"_example":"EXAMPLE output for illustration only (captured/synthetic values); not live or current data. Not financial advice.","agreement":"ALIGNED | OPPOSED | MIXED","sentiment":null,"invalidation_level":"number"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-8koMpJ7xDg_DNiedeoLy","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a blended directional market signal (stance, odds, sentiment, invalidation level) for a crypto symbol by combining Kronos AI forecasts with market data, volatility, and prediction-market inputs.","exampleAgentPrompt":"What's the current Kronos market signal for BTC-USD — is there a lean up or down edge, and what's the odds_up probability and invalidation level right now?","exampleUseCases":[{"title":"Crypto trading decision support","prompt":"Before I place a trade, check the QuantX402 signal for BTC-USD and tell me if there's a bullish or bearish edge, what the odds are of it finishing higher, and where the invalidation level sits."},{"title":"Hourly Bitcoin signal monitoring","prompt":"Every hour, pull the 1h timeframe signal for BTC-USD and alert me if the stance flips from LEAN_UP to LEAN_DOWN or if NO_EDGE is returned — I want to track trend changes through the session."},{"title":"ETH sentiment and forecast alignment check","prompt":"Check the QuantX402 signal for ETH-USD and tell me whether the Kronos forecast is ALIGNED or OPPOSED to current market sentiment, and summarize the plain-English reasons it gives."}],"resultDescription":"A JSON object containing: stance (LEAN_UP, LEAN_DOWN, or NO_EDGE), symbol, odds_up (0–1 probability of price finishing higher), agreement (ALIGNED, OPPOSED, or MIXED between forecast and sentiment), sentiment value, invalidation_level (price level at which the signal is invalidated), and a reasons array of plain-English explanations.","failureModes":["Unsupported symbol — only BTC-USD and ETH-USD are live; stocks/forex return errors or empty","Payment not processed — x402 payment failure results in 402 response and no signal data","Unsupported timeframe — only '1h' is currently accepted; other values are rejected","Stale or unavailable market data — signal may return NO_EDGE when underlying data is insufficient","Rate limiting — high-frequency callers may be throttled after repeated rapid calls"],"whenToPreferThis":"Choose this endpoint when you need a single pre-blended directional signal for Bitcoin or Ethereum that fuses AI forecasting (Kronos), volatility, prediction-market odds, and sentiment into one JSON payload — rather than calling separate data sources and synthesizing yourself. Ideal for trading bots, signal dashboards, or AI agents that need a quick actionable stance with an invalidation level, especially when you want Kronos-specific path probability (odds_up) rather than a generic price feed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:36:30.573Z","isFirstParty":false,"canonicalSlug":"quantx402-multi-asset-market-signal-api-ce0b03df"}