{"uid":"cap_L8iY7MwAmPGyaB6AkXpUf","slug":"aizamon-order-book-prediction-market-prices-b62a2d31","name":"Aizamon Order Book — Prediction Market Prices","description":"Aizamon is an operator-run Canadian shop: $5 emailed security summaries via Stripe, Tor tooling for Cursor, and redacted developer telemetry. Named support. Clear terms.","url":"https://aizamon.com/x402/v1/book?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","properties":{"q":{"type":"string","description":"Optional topic. Omit for the highest 24h-volume markets."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"ok":{"type":"boolean"},"sku":{"type":"string"},"result":{"type":"object"},"protocol":{"type":"string"}},"additionalProperties":true}}}}},"responseSchema":{"type":"json","example":{"ok":true,"sku":"SKU_AG_BOOK_01","result":{"book":{"kalshi":{"count":1,"markets":[{"yesAsk":0.43,"yesBid":0.4,"question":"example","volume24hr":500}]},"polymarket":{"count":1,"markets":[{"bestAsk":0.42,"bestBid":0.4,"question":"example","volume24hr":1000}]}}},"protocol":"x402"}},"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_c3p_9PbDTT4rdlChT0VAM","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":"Fetches top prediction market order book data from Kalshi and Polymarket, optionally filtered by topic, returning best bid/ask prices and 24-hour volume.","exampleAgentPrompt":"What are the current best bid and ask prices on Kalshi and Polymarket for markets about the US election? Show me the top markets by 24-hour volume.","exampleUseCases":[{"title":"Track election odds across platforms","prompt":"Pull up the current prediction market prices on Kalshi and Polymarket for US election questions — I want to see the best bid and ask and how much volume each market did in the last 24 hours."},{"title":"Find hottest markets with no topic filter","prompt":"What are the highest-volume prediction markets trading right now on Kalshi and Polymarket? Don't filter by topic, just show me whatever is most active today."},{"title":"Compare crypto market odds","prompt":"Look up prediction market order book data for crypto-related questions on both Kalshi and Polymarket — I want to see the yes bid, yes ask, and 24h volume side by side."}],"resultDescription":"A JSON object with an 'ok' flag and a 'result.book' object containing separate arrays for Kalshi and Polymarket markets. Each market entry includes the question text, best bid price, best ask price, and 24-hour trading volume. Also includes a count of markets returned per platform and the x402 protocol identifier.","failureModes":["No markets returned for obscure or misspelled topic query — returns empty arrays","Payment failure or 402 not resolved — endpoint not accessible","Kalshi or Polymarket data source unavailable — partial or empty result","Malformed query parameter — may return top markets as fallback or error","Rate limiting if too many calls made in short succession"],"whenToPreferThis":"Choose this endpoint when you need real-time prediction market order book data from both Kalshi and Polymarket in a single call, especially for comparing odds across platforms or finding the highest-volume markets on a given topic. Prefer it over scraping individual exchange UIs or using exchange-specific APIs when you want a unified cross-platform view with bid/ask and volume in one response.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:40:47.738Z","isFirstParty":false,"canonicalSlug":"aizamon-order-book-prediction-market-prices-b62a2d31"}