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x402 Buyer Behavior Classification
x402
x402 Buyer Behavior Classification is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-23).
Deterministically classifies an x402 buyer wallet as organic, suspected wash, self-test, or developer based on payment history and behavioral signals
Price / call$0.002
Success—
StatusUnknown
How this service works
Deterministic classification procedure that labels an x402 buyer wallet as organic, suspected wash, self-test, or developer, the per-buyer mirror of ledger-level wash detection. Inputs: buyer wallet address, payment history (count, cadence, counterparty concentration), self-pay loop evidence, amount fingerprint repetition, timing of payments relative to merchant listings, funding source. Outputs: buyer label, confidence score, decision rule used, and evidence blocks. Thresholds: self-pay loops
Output
Returns a buyer label (organic, suspected wash, self-test, or developer), a confidence score, the specific decision rule applied, and structured evidence blocks supporting the classification. Also includes a prose brief suitable for agent consumption and metadata about the generation source (deterministic/llm/reasoning).
Example use cases
Merchant vetting incoming buyer wallets
“Before I accept this payment, can you classify the buyer wallet 0xDEF456 on x402 — tell me if it looks organic or suspected wash, what confidence you have, and what evidence you found?”
Marketplace fraud audit on repeat buyers
“I want to audit the buyer wallet 0x789GHI that's been making lots of small x402 payments — classify it as organic, self-test, wash, or developer and show me the decision rule and evidence blocks.”
Developer sandbox verification
“Can you check if wallet 0xJKL012 is flagged as a developer or self-test account in x402 rather than a real organic buyer? I need the label and confidence score.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/x402-buyer-behavior-classification-organic-wash?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need per-buyer behavioral classification on the x402 network — specifically to distinguish organic buyers from wash traders, developers, or self-testers at the wallet level. Prefer this over ledger-level wash detection when you need a per-buyer label with confidence scores and traceable decision rules rather than aggregate ledger analysis.
Side effects
- Missing or invalid buyer wallet address returns an error
- Insufficient payment history may result in low confidence score
- Self-pay loop detection may produce false positives for legitimate test wallets
- Endpoint returns metadata JSON for free when ?meta=1 is set, not the paid classification result
- Payment not received results in 402 response requiring x402 payment flow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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