{"uid":"cap_xe8nyoeu3-gs9Gw-BvIy-","slug":"x402pulse-polymarket-whale-trades-9821f56e","name":"x402pulse Polymarket Whale Trades","description":"Polymarket whale trades: the largest recent buys and sells across all markets above a size you choose, with trader name, outcome, price and USD size. 5- and 15-minute crypto markets filtered out. Pair with /v1/wallet to check whether a whale is any good.","url":"https://www.x402pulse.dev/v1/whales?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":{"min":{"type":"string","description":"Minimum trade size in USD"},"limit":{"type":"string","description":"Number of trades, 1 to 50"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{"minUsd":1000,"trades":[{"usd":12400,"name":"Theo4","side":"BUY","slug":"example-market","time":"2026-10-01T12:00:00.000Z","price":0.62,"market":"Example market?","wallet":"0x56687bf447db6ffa42ffe2204a05edaa20f55839","outcome":"Yes"}]},"cached":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0175","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":"$0.0175/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0175","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0175","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zC5-HI6hh2DOGOEMWky0m","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0175","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the largest recent Polymarket trades above a user-specified USD size, with trader name, outcome, price, and trade size, excluding short-term crypto markets.","exampleAgentPrompt":"Show me the 20 biggest Polymarket trades right now where each trade is at least $5,000 — I want to see which whales are buying or selling and on what outcomes.","exampleUseCases":[{"title":"Spotting whale conviction before an event","prompt":"Pull up the 25 largest Polymarket trades above $10,000 — I want to see if any whales are loading up on a specific outcome before tonight's announcement."},{"title":"Vetting a specific whale trader","prompt":"Get me the 10 biggest recent Polymarket trades over $2,000 and flag the trader names so I can check each one against their skill score to see if these are smart-money moves."},{"title":"Monitoring unusual market activity","prompt":"Every 10 minutes, show me the top 15 Polymarket trades above $15,000 so I can detect if any whale is suddenly moving big money on a single outcome."}],"resultDescription":"A list of up to 50 of the largest recent Polymarket trades, each including trader name, market, outcome, price, and USD trade size, excluding 5- and 15-minute crypto markets. Results are ordered by trade size descending.","failureModes":["No trades found above the specified minimum size — reduce the min parameter","limit out of range (must be 1–50) — returns validation error","Missing or malformed query parameters — returns 400 error","Payment failure or insufficient USDC — returns 402 Payment Required","Service temporarily unavailable — returns 5xx error"],"whenToPreferThis":"Use this endpoint when you want to identify large, informed trades on Polymarket specifically — not aggregated prediction market data. It is ideal for surfacing smart-money signals, tracking whale sentiment, or pairing with the /v1/wallet endpoint to evaluate whether a whale trader has a strong track record. Prefer this over generic market-data APIs when you need trader-level attribution and USD-denominated trade sizes with outcome context.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:30:15.755Z","isFirstParty":false,"canonicalSlug":"x402pulse-polymarket-whale-trades-9821f56e"}