{"uid":"cap_KFl18JkUHjlEbP92Xb73R","slug":"polymarket-vs-kalshi-cross-platform-prediction-market-gap-finder-21f12f11","name":"Polymarket vs Kalshi Cross-Platform Prediction Market Gap Finder","description":"Prediction market cross-platform gaps - biggest disagreements between Polymarket and Kalshi on the SAME question: both questions and probabilities, the gap in points, volumes, close dates, urls, match_confidence. Arbitrage research, sanity-checking a price against a second venue, event-risk divergence. From a background snapshot rebuilt every 30 min. ?limit=1-50&min_gap=<pts, default 0>&q=<optional topic>. Check both resolve on the same terms.","url":"https://clinkagent.com/pm/gaps?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":[],"properties":{"q":{"type":"string"},"limit":{"type":"string"},"min_gap":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Xhx1Rx-fQt-sgtdg35CjD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the biggest probability disagreements between Polymarket and Kalshi on the same prediction market question, including prices, gap sizes, volumes, close dates, and match confidence.","exampleAgentPrompt":"Show me the top 10 biggest probability gaps between Polymarket and Kalshi right now — only gaps larger than 5 points — and filter by anything related to the US election.","exampleUseCases":[{"title":"Arbitrage opportunity scanner","prompt":"Find me up to 20 prediction market questions where Polymarket and Kalshi disagree by at least 8 percentage points — I want to spot arbitrage opportunities."},{"title":"Price sanity check against second venue","prompt":"I'm looking at a Polymarket question on the Fed rate cut — can you pull the cross-platform comparison to see if Kalshi prices it differently and by how much?"},{"title":"Event risk divergence on a specific topic","prompt":"Show me the top 5 biggest gaps between Polymarket and Kalshi on anything related to crypto regulation, so I can see where the two markets diverge most on that topic."}],"resultDescription":"A ranked list of matched prediction market questions appearing on both Polymarket and Kalshi, ordered by probability gap. Each entry includes: the question text from both platforms, their respective probabilities, the gap in percentage points, trading volumes, market close dates, direct URLs to each market, and a match confidence score indicating how reliably the two questions refer to the same event.","failureModes":["limit parameter out of range (must be 1-50) returns error or empty result","min_gap set too high returns empty result set with no matches","q keyword too niche yields no matched questions","snapshot may be up to 30 minutes stale — real-time prices may differ","two questions matched with low confidence may not actually resolve on the same terms"],"whenToPreferThis":"Use this endpoint when you need to compare the same prediction market event across Polymarket and Kalshi simultaneously, especially for arbitrage research, cross-venue price validation, or identifying where the two platforms diverge most in their implied probabilities. Prefer this over querying each platform separately when you want pre-matched, gap-ranked results in a single call. Not suitable for real-time execution — prices are from a snapshot refreshed every 30 minutes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T00:40:04.962Z","isFirstParty":false,"canonicalSlug":"polymarket-vs-kalshi-cross-platform-prediction-market-gap-finder-21f12f11"}