{"uid":"cap_HF1vlwobjNlf9YeesynNy","slug":"quantx402-multi-asset-market-signal-api-8e0e8e5f","name":"QuantX402 Multi-Asset Market Signal API","description":"Prediction markets: active prediction markets matched to BTC, ETH, SOL (price-level and touch markets) or MACRO (Fed decisions, US CPI) with the current Yes price, volume, resolve time and link, refreshed hourly. Pay per call via x402. Yes prices are what traders pay, not our forecast. Not financial advice.","url":"https://quantx402.app/api/v1/markets?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":{"limit":{"type":"integer","maximum":200,"minimum":1,"description":"Max markets (default 60)"},"symbol":{"enum":["BTC","ETH","SOL","MACRO"],"type":"string","description":"BTC, ETH, SOL, or MACRO for Fed decision and US CPI markets"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":100,"symbol":"BTC","markets":[{"url":"https://polymarket.com/event/bitcoin-above-on-october-12-2026","strike":84000,"question":"Will the price of Bitcoin be above $84,000 on October 12?","yes_price":0.375,"comparator":"above","volume_usd":19291,"resolve_time":"2026-10-12T16:00:00Z"}],"_example":"EXAMPLE output for illustration only (captured/synthetic values); not live or current data. Not financial advice."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WxC2EEeP-3hwoe2Xwzd01","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns blended market signals for crypto (and soon stocks/forex) including prediction-market odds, volatility ranges, Kronos forecasts, and sentiment in a single JSON fact list, paid per-call via x402.","exampleAgentPrompt":"Pull the latest QuantX402 market signals for BTC — give me up to 60 markets with prediction-market odds, strike prices, and sentiment blended together.","exampleUseCases":[{"title":"Crypto trading bot signal feed","prompt":"Fetch the latest BTC market signals from QuantX402, up to 100 markets — I need the prediction-market yes prices, strike prices, and resolve times to feed my trading strategy."},{"title":"Macro event odds for Fed decision","prompt":"What are the current prediction-market odds for the Fed's next interest rate decision? Pull MACRO signals from QuantX402 so I can see how markets are pricing it."},{"title":"Solana sentiment before portfolio rebalance","prompt":"Get me the QuantX402 market signals for SOL — I want to see the volatility range and prediction-market odds before I decide whether to rebalance my Solana position."}],"resultDescription":"A JSON object containing a count of markets returned, the queried symbol, and an array of prediction-market records — each with the market URL, strike price, a yes/no probability price, comparator direction (above/below), USD volume, resolve timestamp, and the market question text.","failureModes":["Missing or invalid 'symbol' parameter returns a 400 error","Symbol values outside BTC/ETH/SOL/MACRO are rejected","Payment not processed via x402 results in a 402 Payment Required response","Limit exceeding 200 returns a validation error","Stale or unavailable upstream prediction-market data may result in empty markets array","Network timeout if upstream Polymarket data is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need a pre-aggregated, single-call JSON snapshot of prediction-market odds blended with volatility and sentiment for a specific crypto asset or macro event, especially in an AI-agent context where minimizing API calls matters and pay-per-call economics via x402 are acceptable. Prefer it over raw exchange APIs when prediction-market implied probabilities and Kronos forecasts are specifically required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:40:35.890Z","isFirstParty":false,"canonicalSlug":"quantx402-multi-asset-market-signal-api-ce0b03df"}