Cross-venue prediction market disagreement API for Polymarket, Kalshi, and Gemin...

{ "method": "GET", "queryParams": { "includeIndicative": true, "limit": 25, "minGap": 0.01, "minMatchConfidence": 0.7, "sources": "polymarket,kalshi,gemini" }, "type": "http" }

{ "example": { "data": { "criteria": { "includeIndicative": true, "limit": 25, "minGap": 0.01, "minMatchConfidence": 0.7, "sources": [ "polymarket", "kalshi", "gemini" ] }, "groups": 42, "returned": 1, "rows": [ { "gap": 0.1, "gapPct": 10, "higher": { "conditionId": "KXBTC-26MAY31-B100000", "endDateIso": "2026-05-31T20:00:00.000Z", "eventSlug": "bitcoin-price-may-31-2026", "eventTitle": "Bitcoin price on May 31, 2026", "indicative": true, "lastPrice": 0.5, "liquidity": 12800, "marketSlug": "kxbtc-26may31-b100000", "marketTicker": "KXBTC-26MAY31-B100000", "noAsk": 0.51, "noBid": 0.49, "noPrice": 0.5, "price": 0.5, "question": "Will Bitcoin be above $100,000 on May 31, 2026?", "seriesSlug": "bitcoin", "seriesTicker": "KXBTC", "source": "kalshi", "sourceUpdatedAt": "2026-05-31T15:56:00.000Z", "volume": 193200, "volume24h": 28450, "yesAsk": 0.51, "yesBid": 0.49, "yesPrice": 0.5 }, "id": "disagreement_example", "lower": { "conditionId": "0xexample-poly", "endDateIso": "2026-05-31T20:00:00.000Z", "eventSlug": "bitcoin-price-may-31-2026", "eventTitle": "Bitcoin price on May 31, 2026", "indicative": false, "lastPrice": 0.4, "liquidity": 9400, "marketSlug": "will-bitcoin-be-above-100000-on-may-31-2026", "marketTicker": null, "noAsk": 0.61, "noBid": 0.59, "noPrice": 0.6, "price": 0.4, "question": "Will Bitcoin be above $100,000 on May 31, 2026?", "seriesSlug": "bitcoin", "seriesTicker": null, "source": "polymarket", "sourceUpdatedAt": "2026-05-31T15:55:00.000Z", "volume": 129300, "volume24h": 18450, "yesAsk": 0.41, "yesBid": 0.39, "yesPrice": 0.4 }, "markets": [ { "conditionId": "0xexample-poly", "endDateIso": "2026-05-31T20:00:00.000Z", "eventSlug": "bitcoin-price-may-31-2026", "eventTitle": "Bitcoin price on May 31, 2026", "indicative": false, "lastPrice": 0.4, "liquidity": 9400, "marketSlug": "will-bitcoin-be-above-100000-on-may-31-2026", "marketTicker": null, "noAsk": 0.61, "noBid": 0.59, "noPrice": 0.6, "price": 0.4, "question": "Will Bitcoin be above $100,000 on May 31, 2026?", "seriesSlug": "bitcoin", "seriesTicker": null, "source": "polymarket", "sourceUpdatedAt": "2026-05-31T15:55:00.000Z", "volume": 129300, "volume24h": 18450, "yesAsk": 0.41, "yesBid": 0.39, "yesPrice": 0.4 }, { "conditionId": "KXBTC-26MAY31-B100000", "endDateIso": "2026-05-31T20:00:00.000Z", "eventSlug": "bitcoin-price-may-31-2026", "eventTitle": "Bitcoin price on May 31, 2026", "indicative": true, "lastPrice": 0.5, "liquidity": 12800, "marketSlug": "kxbtc-26may31-b100000", "marketTicker": "KXBTC-26MAY31-B100000", "noAsk": 0.51, "noBid": 0.49, "noPrice": 0.5, "price": 0.5, "question": "Will Bitcoin be above $100,000 on May 31, 2026?", "seriesSlug": "bitcoin", "seriesTicker": "KXBTC", "source": "kalshi", "sourceUpdatedAt": "2026-05-31T15:56:00.000Z", "volume": 193200, "volume24h": 28450, "yesAsk": 0.51, "yesBid": 0.49, "yesPrice": 0.5 } ], "matchConfidence": 0.9, "matchType": "strong", "matchedOn": { "dateKey": "2026-05-31", "directionKey": "above", "eventKey": "bitcoin price on may 31 2026", "numericKey": "100000|31|2026", "subjectKey": "will bitcoin be above 100000 on may 31 2026", "type": "strong" }, "minutesUntilEnd": 240, "outcome": "yes", "rationale": "kalshi prices YES 10 points above polymarket on a strong cross-venue match.", "sources": [ "polymarket", "kalshi" ], "topic": "Bitcoin price on May 31, 2026: Will Bitcoin be above $100,000 on May 31, 2026?", "totalLiquidity": 22200, "totalVolume24h": 46900 } ], "sourceCounts": { "gemini": 3, "kalshi": 4, "polymarket": 5 }, "sourceUpdatedAt": { "gemini": "2026-05-31T15:54:30.000Z", "kalshi": "2026-05-31T15:56:00.000Z", "polymarket": "2026-05-31T15:55:00.000Z" }, "timestamp": 1760000000000, "totalCandidates": 14, "warnings": [] }, "meta": { "freshnessMs": 30000, "generatedAt": "2026-03-25T12:00:00.000Z", "requestId": "req_example_123", "updatedAt": "2026-03-25T11:59:30.000Z" }, "product": { "accepts": [ { "network": "eip155:8453", "payTo": "0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5", "price": "$0.1000", "scheme": "exact" }, { "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "payTo": "2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ", "price": "$0.1000", "scheme": "exact" } ], "id": "prediction-cross-venue-disagreement", "method": "GET", "name": "Cross-Venue Prediction Market Disagreement API", "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ], "path": "/v1/prediction/cross-venue-disagreement", "price": "$0.1000" }, "service": "seerium-x402-api" }, "type": "json" }