{"uid":"cap_YH2nGSGfn5Mg34hiuFEMG","slug":"api-dripmetrics-ai-b44481f3","name":"DripMetrics Polymarket Wallet Concentration","description":"DripMetricsAI (https://dripmetrics.ai/) provides on-demand crypto market microstructure metrics, Hyperliquid candle metrics, Polymarket diagnostics, and on-chain DefiLlama metrics for agents, dashboards, and trading workflows.","url":"https://api.dripmetrics.ai/polymarket/wallet-concentration","method":"POST","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":["POST"],"type":"string"},"queryParams":{"type":"object","anyOf":[{"required":["conditionId"]},{"required":["slug"]}],"required":[],"properties":{"slug":{"type":"string","description":"Polymarket market or event slug for human-readable market selection. Multi-market event slugs may require conditionId to disambiguate."},"endTs":{"type":"integer","description":"Optional unix timestamp upper bound."},"limit":{"type":"integer","maximum":5000,"minimum":1,"description":"Maximum number of trades to evaluate."},"newsTs":{"type":"integer","description":"Optional explicit event timestamp for leakage scoring. If omitted, the metric uses the midpoint of the effective analysis window."},"assetId":{"type":"string","description":"Alias for tokenId on price-history-based endpoints."},"outcome":{"enum":["YES","NO"],"type":"string","description":"Required for token-side Polymarket diagnostics when the selected YES or NO side must be interpreted."},"startTs":{"type":"integer","description":"Optional unix timestamp lower bound."},"tokenId":{"type":"string","description":"Polymarket token / asset ID for orderbook and price-history endpoints."},"conditionId":{"type":"string","description":"Polymarket condition ID for trade-based metrics."},"windowMinutes":{"type":"integer","minimum":1,"description":"Lookback window in minutes."},"lookbackMinutes":{"type":"integer","minimum":1,"description":"Historical lookback used for probability shock normalization."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["metric","window","value","components","sampleSize","source","computedAt"],"properties":{"slug":{"type":"string"},"value":{"type":["number","null"]},"metric":{"type":"string"},"source":{"type":"object"},"window":{"type":"object"},"assetId":{"type":"string"},"outcome":{"type":"string"},"tokenId":{"type":"string"},"components":{"type":"object"},"computedAt":{"type":"string","format":"date-time"},"sampleSize":{"type":"object"},"conditionId":{"type":"string"}},"additionalProperties":false}}}}},"responseSchema":{"type":"json","example":{"slug":"fed-decision-in-october","value":0.1423,"metric":"wallet-concentration","source":{"market":"https://gamma-api.polymarket.com/markets/slug/fed-decision-in-october","trades":"https://data-api.polymarket.com/trades"},"window":{"windowMinutes":60},"components":{"hhi":0.1423,"top1Share":0.26,"top5Share":0.61,"totalVolume":20428.8,"uniqueWallets":42},"computedAt":"2026-05-25T14:00:00.000Z","sampleSize":{"trades":186,"wallets":42},"conditionId":"0xdd22472e552920b8438158ea7238bfadfa4f736aa4cee91a6b86c39ead110917"}},"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"limit":100,"conditionId":"0x1234567890abcdef1234567890abcdef12345678","windowMinutes":60}}},"response":{"value":0.070701,"metric":"wallet-concentration","source":{"trades":"https://data-api.polymarket.com/trades"},"window":{"endTs":1780979485509,"startTs":1780975885509,"windowMinutes":60},"components":{"hhi":0.070701,"top1Share":0.164864,"top5Share":0.484124,"totalVolume":1601.315715,"coverageNote":"Trade scan did not reach the full requested lookback; results use the newest API-visible trades within the scan limit.","uniqueWallets":71},"computedAt":"2026-06-09T04:31:25.711Z","sampleSize":{"trades":100,"wallets":71,"scannedTrades":100},"conditionId":"0x1234567890abcdef1234567890abcdef12345678"}},"exampleRequest":{"limit":100,"conditionId":"0x1234567890abcdef1234567890abcdef12345678","windowMinutes":60},"tags":["x402"],"displayCostAmount":"0.050000","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":"$0.050000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_VKHBliZElUHdHOCDoMTRP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Measures whether recent trading flow in a Polymarket prediction market is dominated by a small set of wallets, returning a structured concentration metric.","exampleAgentPrompt":"Can you check the wallet concentration for the Polymarket market with slug 'will-btc-hit-100k-by-end-of-2025' over the last 120 minutes — I want to know if a few wallets are dominating the recent trading flow?","exampleUseCases":null,"resultDescription":"A structured JSON object containing the wallet concentration metric value (0–1 scale), breakdown of metric components, sample size (number of trades evaluated), the effective analysis window, the market slug, and a computedAt timestamp indicating when the metric was calculated.","failureModes":["Missing both conditionId and slug — API requires at least one to identify the market","Invalid conditionId or slug returns a 404 or empty result","windowMinutes or limit outside allowed range returns a validation error","x402 payment failure (insufficient USDC balance) results in 402 Payment Required response","Market has too few trades in the window — sampleSize may be 0 or metric may be unreliable","endTs before startTs causes invalid window error"],"whenToPreferThis":"Use this endpoint when you need to assess whether recent Polymarket trading activity is concentrated among a small number of wallets — a key signal for manipulation risk, informed trading, or whale dominance. Prefer this over generic market data endpoints when you specifically need wallet-level flow concentration diagnostics on Polymarket. Ideal for agents performing prediction market due diligence, risk screening, or identifying suspicious order flow patterns without needing a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:42:17.171Z","isFirstParty":false}