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Kenward Buyer Activity Lookup API (x402)
x402
Kenward Buyer Activity Lookup API (x402) is a paid API for AI agents from pay.kenwardai.my.id, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).
Returns payment activity and buyer history for a given job/poster ID on a marketplace, paid per call in USDC on Base via x402.
Price / call$0.02
Success—
StatusUnknown
How this service works
Pay-per-call data settled in USDC on Base. No account, no API key, no human in the loop. Measured 2026-10-05: p50 89-105 ms end-to-end over the public internet; our own handling cost is reported per response in the X-Kenward-Serve-Ms header. Safe by construction: the server holds no private key (/health reports holds_keys=false), a signed payment is delivered once, and an unmeasured market answers UNKNOWN instead of a guess. Launch price: 0.025 USD (50% off 0.05) for the first 100 unique paying wallets (excluding the operator's own wallet).
Output
Returns a JSON snapshot containing the job_id, market, as_of date, a buyer object with ever_paid (boolean) and payments_observed (integer count), and a boundary field indicating the data derivation method (e.g. snapshot-derived).
Example use cases
Verify buyer before engaging
“Before I respond to this job posting, can you check if the poster with job ID 98765 on dealwork has ever actually paid anyone? I want to see their payment count and whether they've ever transacted.”
Fraud screening for marketplace
“Run a buyer history check on job ID 44321 in the dealwork market — I need to know if this account has zero payments observed so I can flag it as a potential fake poster.”
Due diligence on new client
“I'm about to take on a client from dealwork with job ID 77890 — can you pull their buyer payment record so I can see how active they've been on the platform?”
Technical details
Endpoint
GEThttps://pay.kenwardai.my.id/v1/buyer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, per-call buyer payment history for a specific job poster on a supported marketplace (e.g. dealwork) without setting up an account or API key. Ideal for agents that need to verify buyer activity on-demand using x402 micropayments in USDC. Not suited for real-time transaction monitoring, bulk lookups, or marketplaces not supported by Kenward.
Side effects
- Missing required job_id or market query params may return an error or empty result
- Invalid or unknown job_id returns a buyer record with ever_paid: false and payments_observed: 0 (indistinguishable from a genuine zero-activity buyer)
- Payment failure (x402 protocol issue or insufficient USDC balance) blocks the call
- Stale snapshot data — as_of date may lag real-time by hours or days
- Rate limiting or service unavailability on the pay.kenwardai.my.id host
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-09-14",
"buyer": {
"ever_paid": false,
"payments_observed": 0
},
"job_id": "12345",
"market": "dealwork",
"boundary": "snapshot-derived"
}
}Tags
x402
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