{"uid":"cap_cE3_GwFsM4SvbxqA8YMBR","slug":"prediction-market-arbitrage-scanner-844d4eba","name":"Prediction Market Arbitrage Scanner","description":"Prediction-market arbitrage scanner: markets whose outcome prices sum below $1, implying a risk-free edge before fees. Send { query?, minEdgePct? }.","url":"https://x402-services-production.up.railway.app/api/predict/arb","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Optional filter"},"minEdgePct":{"type":"number","description":"Minimum edge %, default 1"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_JzulW__CqIgKt-jeDoS57","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scans prediction markets for arbitrage opportunities where outcome prices sum below $1, indicating a potential risk-free edge before fees","exampleAgentPrompt":"Can you scan prediction markets for arbitrage opportunities right now — I want markets where the outcome prices sum below $1 with at least a 2% edge minimum?","exampleUseCases":null,"resultDescription":"A list of prediction markets where outcome prices sum to less than $1, indicating an arbitrage edge. Each result includes the market details, the individual outcome prices, and the calculated edge percentage. Results can be filtered by keyword query and minimum edge percentage threshold.","failureModes":["No arbitrage opportunities found matching the minimum edge percentage — returns empty results","Invalid minEdgePct value (e.g. negative number) — may return error or default behavior","External Polymarket data unavailable — may return error or stale data","Payment failure due to insufficient USDC balance — 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you want to automatically discover prediction market arbitrage opportunities without manually checking each market. Prefer this over manually querying individual market odds when you need a broad scan across many markets simultaneously, especially when filtering for a specific minimum edge size.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:45:47.810Z","isFirstParty":false}