{"uid":"cap_IMoxRve9j7IHrNG2OIzsn","slug":"blockrun-ai-ee2446ec","name":"BlockRun.AI Polymarket/Kalshi Matching Markets","description":"14M+ on-chain transactions. The routing & payment layer for AI. One endpoint routes to every frontier model — payment built in, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.","url":"https://blockrun.ai/api/v1/pm/matching-markets","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"object","properties":{"body":{"type":"object","required":[],"properties":{}}}},"output":{"type":"object","properties":{"example":{"type":"object","properties":{"data":{"type":"object"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0095","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0095","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qxf8l3tF4UdBLXX5CCxIG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0095","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Find equivalent or corresponding prediction markets that exist on both Polymarket and Kalshi for the same underlying event","exampleAgentPrompt":"Can you find me the equivalent markets on both Polymarket and Kalshi for the 2024 US presidential election winner — I want to compare odds across both platforms?","exampleUseCases":null,"resultDescription":"Returns matched market pairs showing equivalent prediction markets available on both Polymarket and Kalshi for the same underlying event, including identifiers and relevant metadata for each matched pair","failureModes":["No matching market found on one or both platforms for the queried event","Query too vague to uniquely identify a market","Market exists on one platform but not the other","Rate limit or payment failure (402 payment required)","Empty result set for niche or obscure event topics"],"whenToPreferThis":"Use this endpoint when you need to cross-reference prediction markets across both Polymarket and Kalshi simultaneously — ideal for arbitrage detection, odds comparison, or liquidity analysis between the two leading prediction market platforms. Prefer this over manually querying each platform's API separately.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:44:04.231Z","isFirstParty":false}