{"uid":"cap_lc8aB_MRmZuplMz-Mh8vY","slug":"arkham-polymarket-biggest-win-wallet-summary-f3120936","name":"Arkham Polymarket Biggest Win Wallet Summary","description":"Get Arkham Polymarket wallet biggest win summary. $0.20 per call.","url":"https://api.arkm.com/x402/polymarket/wallet/summary/biggest-win","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"addr":{"anyOf":[{"type":"string"},{"type":"number"},{"type":"boolean"},{"type":"array","items":{"anyOf":[{"type":"string"},{"type":"number"},{"type":"boolean"}]}}],"description":"Required. Polymarket trade address (0x + 40 hex chars)."}}},"responseSchema":{"type":"json","example":{"biggestWin":"643126.136941","userAddress":"0xBDDF61Af533fF524D27154e589d2D7A81510C684"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.2","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":"$0.2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__VzycbOpbvIYCRpq_pNkP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the wallet address and dollar amount of the single biggest winning trade on Polymarket","exampleAgentPrompt":"Who has the biggest single win on Polymarket and how much did they make? Pull the data from Arkham's wallet intelligence.","exampleUseCases":[{"title":"Identify top Polymarket whale trader","prompt":"Who is the biggest winner on Polymarket ever? I want their wallet address and how much they won."},{"title":"Research competitive edge of top bettors","prompt":"Find me the wallet that made the largest single profit on Polymarket so I can study what markets they traded on."},{"title":"Track record-breaking prediction market wins","prompt":"What's the biggest win ever recorded on Polymarket? Give me the wallet address and the exact dollar amount."}],"resultDescription":"A JSON object containing 'biggestWin' (the largest single profit in USDC as a string, e.g. '643126.136941') and 'userAddress' (the Ethereum wallet address of the winning trader on Polymarket).","failureModes":["Payment failure if USDC balance insufficient for $0.20 x402 charge","Rate limiting if too many requests in a short window","Stale data if Arkham's indexing pipeline is behind","Empty or null result if Polymarket data is temporarily unavailable","Invalid API key resulting in 401 unauthorized"],"whenToPreferThis":"Use this endpoint when you need a quick, authoritative lookup of the single largest winning trade ever recorded on Polymarket, with on-chain wallet attribution from Arkham's intelligence graph. Prefer this over manual on-chain queries when you need a clean, pre-aggregated answer without parsing raw blockchain data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:45:07.931Z","isFirstParty":false}