{"uid":"cap_aQM7giFI0XjwG7wjvs_Rk","slug":"holder-overlap-42a0d26d","name":"Holder Overlap","description":"Do two tokens share the same recent holders — the farm / sybil / coordinated-launch signal nobody else surfaces? Reads each token's recent recipients and returns the overlap as a share of the smaller set: independent (the few % unrelated tokens share via routers/power users), overlapping, or strongly_linked (a coordinated cohort — same farm, deployer community, or a sybil set rotating between them). Pass a= and b=. A signal, not proof. Not financial advice.","url":"https://402.com.tr/api/x402/holder-overlap?utm_source=zero.xyz","method":"GET","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":["GET"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["a","b"],"properties":{"a":{"type":"string","description":"Token A"},"b":{"type":"string","description":"Token B"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/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_sttQl2HxHtYejcQ4sGqXy","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Compares the recent on-chain holders of two Base tokens and returns an overlap score indicating whether they share a coordinated, farmed, or sybil cohort.","exampleAgentPrompt":"Can you check whether the holders of token 0xABC123... and token 0xDEF456... on Base overlap significantly — I want to know if they seem like a coordinated farm or sybil set?","exampleUseCases":[{"title":"Coordinated launch detection for new tokens","prompt":"I'm looking at two new Base tokens, 0xTokenA and 0xTokenB, that launched around the same time — can you check if their recent holders overlap heavily? I want to know if this looks like a coordinated farm or the same deployer community rotating wallets."},{"title":"Sybil risk check before airdrop inclusion","prompt":"Before I include 0xToken1 and 0xToken2 holders in my airdrop whitelist, can you tell me the holder overlap between them? I need to flag any sybil wallets gaming both drops."},{"title":"Due diligence on suspicious token pair","prompt":"Someone is claiming 0xTokenX and 0xTokenY are unrelated projects, but they launched a week apart — can you run a holder overlap check and tell me if they're independent, overlapping, or strongly linked?"}],"resultDescription":"Returns a holder overlap ratio expressed as a fraction of the smaller holder set, plus a classification label: 'independent' (low overlap typical of shared routers/power users), 'overlapping' (notable shared holders), or 'strongly_linked' (high overlap indicating a coordinated cohort such as a farm, deployer community, or sybil set rotating between tokens).","failureModes":["Invalid or non-existent token address returns an error or empty result","Token with very few on-chain holders may produce unreliable overlap ratios","Tokens with identical addresses passed as both a and b may return trivially high overlap","Rate limiting or payment failure (402) if USDC payment is not properly attached","Network-level errors if Base chain data is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need a fast, cheap on-chain signal about whether two specific Base tokens share a coordinated holder base — particularly for sybil detection, airdrop farming defense, or pre-listing due diligence. It is uniquely focused on the holder-overlap coordination signal rather than price, liquidity, or general token metrics. Prefer it over generic token analytics when the specific question is 'do the same wallets hold both tokens?'","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T07:21:20.523Z","isFirstParty":false,"canonicalSlug":"holder-overlap-42a0d26d"}