Oblique Markets · Paid Payer Profile

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://api.oblique.markets/api/v1/paid/payer-profile", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "address": "0xc9c7b38C0942914fC8EA12063BC92dcd3b581670"
  }),
});
const data = await res.json();

curl -X POST \
  "https://api.oblique.markets/api/v1/paid/payer-profile" \
  -H "Content-Type: application/json" \
  -d '{"address":"0xc9c7b38C0942914fC8EA12063BC92dcd3b581670"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "address": "0xc9c7b38c0942914fc8ea12063bc92dcd3b581670",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "cache": "miss",
  "cadence": {
    "active_days": 6,
    "modal_hours_utc": [
      {
        "hour_utc": 19,
        "payments": 207
      },
      {
        "hour_utc": 12,
        "payments": 202
      },
      {
        "hour_utc": 1,
        "payments": 193
      }
    ],
    "payments_per_day": 27.033,
    "regularity": {
      "inter_payment_gap_cv": 5.091,
      "note": "coefficient of variation of the gaps between consecutive payments; lower is more evenly spaced; null with fewer than 3 payments"
    },
    "span_days": 5.4
  },
  "class": "paying_index",
  "computed_at": "2026-09-10T00:21:24.086Z",
  "confidence": "high",
  "coverage": {
    "complete": true,
    "explorer_host_failures": 0,
    "explorer_rate_limited": 0,
    "explorer_requests": 18,
    "explorer_retries": 0,
    "note": "every outbound USDC transfer in the window was read",
    "upstream_ms": 12328
  },
  "distinct_recipients": 346,
  "evidence": {
    "active_days": 6,
    "distinct_recipients": 346,
    "native_tx_count": 0,
    "payments": 811,
    "payments_per_day": 27.033,
    "span_days": 5.4
  },
  "first_seen": "2026-09-04T09:23:49.000Z",
  "generated_at": "2026-09-10T00:21:24.086Z",
  "last_seen": "2026-09-09T19:02:35.000Z",
  "native_tx_count": 0,
  "native_tx_count_is_lower_bound": false,
  "network": "eip155:8453",
  "note": "class is a heuristic over public on-chain payment traces (USDC transfers from this address on Base), not an identity claim; the same wallet can be operated by anyone and can change behaviour tomorrow.",
  "our_observation": {
    "classes": {
      "known_sweep": 8,
      "real": 1
    },
    "classification": "known_sweep",
    "first_seen": "2026-09-05T01:01:56.354Z",
    "last_seen": "2026-09-09T12:09:45.609Z",
    "payments": 9,
    "returned_after_1h": true,
    "routes_bought": 9,
    "seen": true
  },
  "payments": 811,
  "payments_per_recipient": 2.34,
  "reading_rule": "the first one to three payers of a new listing are usually verifiers paying to look; a single repeat about six days later is a verifier cadence, not a returning customer; many calls per payer is the customer signal",
  "reason": "346 distinct recipients on 6 distinct days across 5.4 days, no native transaction ever sent",
  "top_recipients": [
    {
      "payments": 17,
      "recipient": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e"
    },
    {
      "payments": 12,
      "recipient": "0x367f1b3d8ca90d1e087481a9a40d585bf3451a03"
    },
    {
      "payments": 12,
      "recipient": "0xa6145f14b197f28a2c5786c6f2e4456f9484f0fd"
    },
    {
      "payments": 11,
      "recipient": "0x68e3e7822cf83c824cf9606ec999b5e8a93c85b5"
    },
    {
      "payments": 11,
      "recipient": "0x169b9519078039e546c6c2d1030cf63a569283d1"
    }
  ],
  "total_usdc": 39.2905,
  "window_days": 30,
  "window_start": "2026-08-11T00:21:11.758Z"
}