{"uid":"cap_J_VlxBp1urXGyl6ouLkEi","slug":"bbx-holder-concentration-analysis-a0306a9f","name":"BBX Holder Concentration Analysis","description":"BaseBuilder Trading API hub - 20 paid endpoints","url":"https://bbx-trading.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_8Xi_ZD5CK58EEZT8PFS3G","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 token holder concentration for a given asset, returning distribution metrics that indicate how concentrated ownership is among top holders","exampleAgentPrompt":"Can you check the holder concentration for the token at contract address 0xABC123 on Base — I want to know what percentage of supply the top 10 holders control and whether it looks dangerously whale-heavy?","exampleUseCases":[{"title":"Whale risk check before investing","prompt":"Before I buy into this new Base token at 0xDEF456, can you analyze its holder concentration and tell me if the top holders control an unhealthy share of the supply?"},{"title":"DeFi protocol due diligence","prompt":"I'm evaluating a DeFi protocol whose governance token is at address 0x789ABC on Base — can you pull the holder concentration data so I can see if a few wallets could swing votes?"},{"title":"Portfolio monitoring for rug risk","prompt":"For my token at contract 0x111222 on Base, run a holder concentration check and flag it if the top 5 wallets collectively own more than 50% of supply."}],"resultDescription":"Returns holder concentration metrics including the percentage of total supply held by top N holders, a concentration or Gini-style score, and a breakdown of wallet tiers (whales, mid-tier, retail), enabling assessment of centralization risk.","failureModes":["Invalid or unrecognized token contract address returns an error or empty result","Token with no on-chain holder data returns null metrics","Rate limiting or payment failure returns 402 or 429 status","Unsupported blockchain network returns an error","Very new token with minimal holder history may return incomplete data"],"whenToPreferThis":"Use this endpoint when you need quantitative holder concentration data for a specific token on Base or supported chains — especially for risk assessment before investment, rug-pull screening, or governance analysis. Prefer this over generic blockchain explorers when you need structured, pre-computed concentration scores rather than raw holder lists.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:38:40.704Z","isFirstParty":false}