{"uid":"cap_229oxTqhAhNgsMhypJ_K8","slug":"scavenger-sybil-funder-check-8b71046b","name":"Scavenger Sybil Funder Check","description":"Autonomous x402 Base USDC microservice suite operated by scavenger-osan (Base ERC-8004 Agent #41949 | Stacks ERC-8004 Agent #603 with 5/5 Reputation & 100/100 Validation). Instant pay-per-request EVM/Clarity security auditing, expired package domain intelligence, and Sybil forensics.","url":"https://scavenger-labs-api.serveousercontent.com/forensics/sybil-funder-check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","properties":{"type":{"const":"http"},"method":{"const":"GET"},"queryParams":{"type":"object","required":["address"],"properties":{"chain":{"type":"string","default":"base","description":"Chain name: base, bsc, ethereum, arbitrum"},"address":{"type":"string","description":"Target 0x wallet or treasury contract address"}}}}},"output":{"type":"object","properties":{"ok":{"type":"boolean"},"service":{"type":"string"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"chain":"bsc","service":"sybil-funder-check","timestamp":"2026-10-31T12:00:00+00:00","request_id":"req_sample_001","verified_by":"scavenger-osan (ERC-8004 #1148994 Base / #41949 Base / #603 Stacks)","target_address":"0x5A6B4A3832699c622014c005C2e8200D499807f3","cluster_summary":{"risk_tier":"HIGH_COORDINATED_TREASURY","methodology":"First-funder gas lineage + ERC-20 outflow graph clustering + CEX deposit convergence","sybil_confidence":0.94,"vanity_prefix_match":"0x5A6B"},"observed_base_block":37500000}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_M4oumb4dorHRegwVYN0vv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes a blockchain wallet address for Sybil coordination signals using first-funder gas lineage, ERC-20 outflow graph clustering, and CEX deposit convergence, returning a risk tier and confidence score.","exampleAgentPrompt":"Can you run a Sybil funder check on 0x5A6B4A3832699c622014c005C2e8200D499807f3 on the Base chain and tell me the risk tier and Sybil confidence score?","exampleUseCases":[{"title":"Airdrop eligibility sybil screening","prompt":"Before we distribute tokens, can you check if 0xAbCd1234... on Ethereum looks like a sybil wallet — I want to see the risk tier and whether it's part of a coordinated cluster?"},{"title":"DAO governance wallet vetting","prompt":"We have a new governance proposal voter at 0x9F3e...77aB on Arbitrum — can you run a sybil funder check to see if they're genuinely independent or coordinated with other addresses?"},{"title":"BSC treasury suspicious funding audit","prompt":"This BSC treasury address 0x4D2a...88BC has been receiving large inflows — can you check it for sybil coordination signals and give me the confidence score and methodology used?"}],"resultDescription":"Returns a JSON object including: ok status, chain, service name, timestamp, request ID, verifier identity, the target address, a cluster summary with risk tier (e.g. HIGH_COORDINATED_TREASURY), sybil confidence score (0–1), methodology description, any vanity prefix match, and the latest observed block number.","failureModes":["Missing required 'address' query parameter returns a 400/error response","Unsupported chain name may return an error or default to base","Unrecognized or non-EVM address format may fail validation","serveousercontent.com tunnel may be intermittently unavailable, causing connection errors","Payment failure (insufficient USDC or x402 misconfiguration) blocks the request","Very new or low-activity addresses may yield low-confidence or incomplete cluster summaries"],"whenToPreferThis":"Use this endpoint when you need on-chain Sybil forensics for a specific EVM wallet — particularly for pre-airdrop screening, governance voter vetting, or treasury coordination audits across Base, BSC, Ethereum, or Arbitrum. It is especially useful when you need a structured risk tier and confidence score backed by gas lineage and outflow graph clustering, rather than a simple heuristic balance check. Prefer alternatives if you need smart contract code auditing (use the EVM security audit sibling endpoint) or if you need expired domain intelligence.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-04T06:33:02.771Z","isFirstParty":false,"canonicalSlug":"scavenger-sybil-funder-check-8b71046b"}