{"uid":"cap_BkK5MBssFV5atBWyW7XMI","slug":"concentration-risk-score-wallet-address-471bf430","name":"Concentration Risk Score — Wallet Address","description":"Returns a concentration-risk score for an x402 pay_to wallet: HHI, unique payer count, top-payer share, persistence across scans, and a risk tier (LOW / MEDIUM / HIGH / CRITICAL). An agent uses this to assess whether an endpoint is a single-agent dependency before building a workflow that depends on it.","url":"https://the-stall.intuitek.ai/cap/concentration-risk-score","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"address":"0x1234567890123456789012345678901234567890","window_days":7}}},"response":{"hhi":0,"address":"0x1234567890123456789012345678901234567890","risk_tier":"NO_DATA","observed_at":"2026-06-18T06:26:12.703Z","window_days":7,"unique_payers":0,"recommendation":"No settlements found for 0x1234567890123456789012345678901234567890 in the last 7 days. Either this address is not an active x402 recipient, or it is too new to assess.","top_payer_share":0,"persistence_scans":0,"total_settlements":0}},"exampleRequest":{"address":"0x1234567890123456789012345678901234567890","window_days":7},"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.213","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.213","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HXNRCQuf1rEzclyMMIgNx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.213","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scores a blockchain wallet address for concentration risk based on its payment activity over a configurable observation window","exampleAgentPrompt":"What's the concentration risk score for wallet 0xAbCd1234567890abcdef1234567890abcdef1234 on Base, looking at the last 14 days of activity?","exampleUseCases":null,"resultDescription":"Returns a concentration risk score for the specified wallet address, quantifying how concentrated or diversified its payment activity is over the given observation window (up to 30 days). Likely includes a numeric score and supporting metrics derived from on-chain payment data.","failureModes":["Invalid or malformed wallet address (not 0x-prefixed or not 42 hex chars) returns a validation error","window_days exceeding 30 triggers a parameter error","Wallet address with no on-chain activity may return a null or zero score","Payment failure (USDC balance insufficient) results in 402 response and no data returned","Network or on-chain data unavailability may cause a temporary service error"],"whenToPreferThis":"Use this endpoint when you need to evaluate how concentrated a wallet's incoming payment patterns are — for example, before making a payment to an address, during due diligence on a counterparty, or when building risk-scoring pipelines for blockchain addresses on Base mainnet. It is particularly useful when no account or API key management overhead is desired, paying per-call via USDC x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:54:56.838Z","isFirstParty":false}