Oblique Markets · Paid Reprice Regret

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/reprice-regret", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "resource_url": "https://x402.shizu.me/crypto"
  }),
});
const data = await res.json();

curl -X POST \
  "https://api.oblique.markets/api/v1/paid/reprice-regret" \
  -H "Content-Type: application/json" \
  -d '{"resource_url":"https://x402.shizu.me/crypto"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "assumptions": [
    "calls_30d and payers_30d are Bazaar-reported trailing 30-day counts, read from daily snapshots",
    "before readings come from the last snapshot at the old price; after readings from the last snapshot at which the new price still held",
    "volume assumed unchanged: both revenues use the calls_30d observed at the new price",
    "no demand elasticity is inferred beyond the observed snapshots; a change before the window is not an event"
  ],
  "evidence_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000",
  "generated_at": "2026-09-07T12:00:00.000Z",
  "networks": [
    "eip155:8453"
  ],
  "peers": {
    "excludes_self": true,
    "median_amount_atomic": 5000,
    "median_payers_30d": 1,
    "sample_size": 12,
    "tag_or_category": "crypto"
  },
  "price_history": [
    {
      "amount_atomic": 3000,
      "calls_30d": 61,
      "network": "eip155:8453",
      "payers_30d": 8,
      "snap_date": "2026-08-09"
    },
    {
      "amount_atomic": 4000,
      "calls_30d": 74,
      "network": "eip155:8453",
      "payers_30d": 9,
      "snap_date": "2026-08-11"
    },
    {
      "amount_atomic": 5000,
      "calls_30d": 88,
      "network": "eip155:8453",
      "payers_30d": 9,
      "snap_date": "2026-08-18"
    },
    {
      "amount_atomic": 6000,
      "calls_30d": 191,
      "network": "eip155:8453",
      "payers_30d": 10,
      "snap_date": "2026-08-23"
    },
    {
      "amount_atomic": 7000,
      "calls_30d": 230,
      "network": "eip155:8453",
      "payers_30d": 8,
      "snap_date": "2026-08-30"
    }
  ],
  "regret_total_usdc": -0.211,
  "repricing_events": [
    {
      "after": {
        "calls_30d": 211,
        "payers_30d": 8,
        "snap_date": "2026-09-07"
      },
      "after_price": 7000,
      "after_price_usdc": 0.007,
      "before": {
        "calls_30d": 230,
        "payers_30d": 8,
        "snap_date": "2026-08-29"
      },
      "before_price": 6000,
      "before_price_usdc": 0.006,
      "calls_30d_delta": -19,
      "change_date": "2026-08-30",
      "counterfactual": {
        "assumption": "volume assumed unchanged: both revenues use the calls_30d observed at the new price",
        "calls_30d": 211,
        "regret_usdc": -0.211,
        "revenue_at_new_price_usdc": 1.477,
        "revenue_at_old_price_usdc": 1.266
      },
      "network": "eip155:8453",
      "payers_30d_delta": 0,
      "ratio": 1.1667,
      "verdict": "Raised 6000 → 7000 atomic ($0.006 → $0.007) on 2026-08-30; on the 211 calls_30d observed at the new price by 2026-09-07 the new price earns $1.477 versus $1.266 at the old price (regret -$0.211): the reprice earned more on unchanged volume; calls_30d moved 230 → 211 (-19) and payers_30d 8 → 8 (+0) across it."
    }
  ],
  "resource_url": "https://x402.shizu.me/crypto",
  "seller_payto": "0x217e5Fe265EB78b29067bF8324ef03a7D8e167C4",
  "service_name": "Crypto Spot Price",
  "snapshot_range": {
    "days": 30,
    "first": "2026-08-09",
    "last": "2026-09-07",
    "observations": 30
  },
  "status": "repricing_observed",
  "still_listed": true,
  "window": {
    "days": 30,
    "from": "2026-08-09",
    "to": "2026-09-07"
  }
}