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Holder Overlap
x402
Holder Overlap is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).
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.
Price / call$0.05
Success—
StatusUnknown
How this service works
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.
Output
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).
Example use cases
Coordinated launch detection for new tokens
“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.”
Sybil risk check before airdrop inclusion
“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.”
Due diligence on suspicious token pair
“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?”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/holder-overlap?utm_source=zero.xyzWhen to prefer
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?'
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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