{"uid":"cap_CHgVk4LoDEj7NM9aUo_zv","slug":"api-seerium-xyz-57a4dfa1","name":"Seerium Prediction Market Arbitrage API","description":"Crypto and prediction market intelligence through x402.","url":"https://api.seerium.xyz/v1/prediction/arb/full-cover","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","properties":{"limit":{"type":"number","maximum":20,"minimum":1,"description":"Optional maximum arb rows to return. Defaults to 20 and is hard-capped at 20."},"minEdge":{"type":"number","minimum":0,"description":"Optional minimum net arb edge as a decimal or percentage-style value."},"sources":{"type":"string","description":"Optional comma-separated venue filter: polymarket, kalshi, gemini."},"includeIndicative":{"type":"boolean","description":"Optional flag for indicative price-only rows. Defaults to true."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{"rows":[{"id":"arb_full_cover_example","no":{"side":"BUY","size":null,"price":0.54,"source":"kalshi","outcome":"no","tokenId":"KXEXAMPLE:NO","question":"Will example event happen by Friday?","marketUrl":"https://kalshi.com/markets/kxexample","priceType":"ask","endDateIso":"2026-03-30T00:00:00.000Z","eventTitle":"Example Event","indicative":true,"marketSlug":"KXEXAMPLE","totalDepth":null,"conditionId":"KXEXAMPLE","eventTicker":null,"marketTicker":"KXEXAMPLE","seriesTicker":null},"key":"question:will example event happen by friday:date:2026-03-30","yes":{"side":"BUY","size":null,"price":0.42,"source":"polymarket","outcome":"yes","tokenId":"poly_yes_token","question":"Will example event happen by Friday?","marketUrl":"https://polymarket.com/market/example-market","priceType":"ask","endDateIso":"2026-03-30T00:00:00.000Z","eventTitle":"Example Event","indicative":true,"marketSlug":"example-market","totalDepth":null,"conditionId":"0xexample","eventTicker":null,"marketTicker":null,"seriesTicker":null},"edge":0.04,"legs":[{"side":"BUY","size":null,"price":0.42,"source":"polymarket","outcome":"yes","tokenId":"poly_yes_token","question":"Will example event happen by Friday?","marketUrl":"https://polymarket.com/market/example-market","priceType":"ask","endDateIso":"2026-03-30T00:00:00.000Z","eventTitle":"Example Event","indicative":true,"marketSlug":"example-market","totalDepth":null,"conditionId":"0xexample","eventTicker":null,"marketTicker":null,"seriesTicker":null},{"side":"BUY","size":null,"price":0.54,"source":"kalshi","outcome":"no","tokenId":"KXEXAMPLE:NO","question":"Will example event happen by Friday?","marketUrl":"https://kalshi.com/markets/kxexample","priceType":"ask","endDateIso":"2026-03-30T00:00:00.000Z","eventTitle":"Example Event","indicative":true,"marketSlug":"KXEXAMPLE","totalDepth":null,"conditionId":"KXEXAMPLE","eventTicker":null,"marketTicker":"KXEXAMPLE","seriesTicker":null}],"outcome":null,"sources":["polymarket","kalshi"],"question":"Will example event happen by Friday?","strategy":"full_cover","feeBuffer":0.002,"grossEdge":0.042,"matchedOn":{"dateKey":"2026-03-30","eventKey":"example event","numericKey":null,"subjectKey":"will example event happen by friday","directionKey":null},"totalCost":0.96,"requiresShort":false}],"totals":{"gemini":250,"groups":80,"kalshi":450,"fullCover":1,"polymarket":500,"sameOutcomeSpread":0},"markets":1200,"criteria":{"limit":20,"minEdge":null,"outcome":null,"sources":[],"strategy":"full_cover","includeIndicative":true},"returned":1,"warnings":[],"updatedAt":"2026-03-25T11:59:30.000Z","totalCandidates":1,"sourceTimestamps":{"gemini":1760000000000,"kalshi":1760000000000,"polymarket":1760000000000}},"meta":{"requestId":"req_example_123","updatedAt":"2026-03-25T11:59:30.000Z","freshnessMs":30000,"generatedAt":"2026-03-25T12:00:00.000Z"},"product":{"id":"prediction-arb-full-cover","name":"Prediction Market Arb Full Cover","path":"/v1/prediction/arb/full-cover","price":"$0.1000","method":"GET","accepts":[{"payTo":"0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5","price":"$0.1000","scheme":"exact","network":"eip155:8453"},{"payTo":"2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ","price":"$0.1000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"}],"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"]},"service":"seerium-x402-api"}},"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"limit":5,"minEdge":0.02,"sources":"polymarket","includeIndicative":false}}},"response":{"data":{"rows":[],"totals":{"gemini":937,"groups":5460,"kalshi":1000,"entries":0,"fullCover":0,"polymarket":858,"sameOutcomeSpread":0},"markets":2795,"criteria":{"limit":5,"minEdge":0.02,"outcome":null,"sources":["polymarket"],"strategy":"full_cover","includeIndicative":false},"returned":0,"warnings":[],"updatedAt":"2026-06-08T04:32:35.270Z","totalCandidates":0,"sourceTimestamps":{"gemini":1780893003454,"kalshi":1780893060545,"polymarket":1780892863491}},"meta":{"maxLimit":20,"strategy":"full_cover","requestId":"58262535-aa48-4fce-8463-09f1386c0d5d","updatedAt":"2026-06-08T04:32:35.270Z","freshnessMs":42490,"generatedAt":"2026-06-08T04:33:17.760Z","returnedRows":0,"totalCandidates":0},"product":{"id":"prediction-arb-full-cover","name":"Prediction Market Arb Full Cover","path":"/v1/prediction/arb/full-cover","price":"$0.0030","method":"GET","accepts":[{"payTo":"0x81832eEDe3a4ad96CB3D7cA09977636D912fd3D5","price":"$0.0030","scheme":"exact","network":"eip155:8453"},{"payTo":"2h752kAbb9z1jpdSzqMEYg9JHv6TPJ6T2BfAJMyjLFtZ","price":"$0.0030","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"}],"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"]},"service":"seerium-x402-api"}},"exampleRequest":{"limit":5,"minEdge":0.02,"sources":"polymarket","includeIndicative":false},"tags":["x402"],"displayCostAmount":"0.003000","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":"$0.003000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OctLyQAOE4t0bs4wBw6bz","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Finds full-cover arbitrage opportunities across Polymarket, Kalshi, and Gemini by identifying YES+NO combinations with positive net edge","exampleAgentPrompt":"Can you scan Polymarket, Kalshi, and Gemini for full-cover arbitrage right now — show me up to 10 opportunities with at least 1% net edge, and include indicative rows too?","exampleUseCases":null,"resultDescription":"Returns a list of up to 20 arbitrage rows, each showing the YES and NO leg venues, contract details, prices, and the net positive edge available for a full-cover position spanning Polymarket, Kalshi, and/or Gemini.","failureModes":["No arb opportunities found above the requested minEdge threshold","Invalid sources parameter (non-supported venue name)","limit exceeds hard cap of 20 — clamped or rejected","Payment failure via x402 protocol","Rate limiting or quota exhaustion","Stale or indicative prices may not reflect executable fills"],"whenToPreferThis":"Choose this endpoint when you need to identify cross-venue prediction market arbitrage between Polymarket, Kalshi, and Gemini specifically, and want structured, pre-ranked opportunities with net edge already computed. Prefer over manual price comparison when you need real-time full-cover arb detection with venue filtering.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:39:46.073Z","isFirstParty":false}