{"uid":"cap_9egnypXZPv5H1vXwNtBTw","slug":"basebuilder-trading-holder-concentration-analysis-06acf107","name":"BaseBuilder Trading Holder Concentration Analysis","description":"BaseBuilder Trading API hub - 20 paid endpoints","url":"https://bb-trading-gold.vercel.app/api/holder/concentration","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.091938","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":"$0.091938/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.091938","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.091938","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5WRMFJk5Y1MnD1j7wrCV-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.091938","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes the concentration of token holders for a given asset, revealing how ownership is distributed across wallets","exampleAgentPrompt":"Can you check the holder concentration for the token at contract address 0xAbC123... on Base — I want to know if it's heavily dominated by whales or if ownership is spread out?","exampleUseCases":null,"resultDescription":"Returns concentration metrics showing how token ownership is distributed across holder wallets, including metrics such as top-holder percentage breakdowns, Gini coefficient or similar concentration score, and whale dominance indicators.","failureModes":["Invalid or unrecognized contract address returns an error","Token has insufficient holder data to compute concentration","Network/chain not supported returns 400 or 422","Upstream on-chain data provider timeout or unavailability","Payment authorization failure via x402 protocol"],"whenToPreferThis":"Use this endpoint when you need to quantitatively assess the ownership distribution and whale risk of a specific token on Base or supported chains, particularly for DeFi due-diligence, risk scoring, or investment analysis workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:30:42.390Z","isFirstParty":false}