OnchainPulse · ETF Flows

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://onchainpulse.theaslangroupllc.com/api/etf-flows", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://onchainpulse.theaslangroupllc.com/api/etf-flows" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "assets": [
    {
      "asset": "BTC",
      "flow_read": "5-day net inflow accelerating vs the prior 5-day window — a strengthening institutional bid.",
      "headline": "Spot BTC ETFs post a third straight day of net inflows, led by IBIT"
    }
  ],
  "cross_asset_read": "BTC inflows while ETH holds flat — no rotation signal yet.",
  "deterministic": {
    "assets": [
      {
        "aggregate": {
          "streak_days": 3,
          "streak_direction": "inflow",
          "trend": "accelerating_inflow"
        },
        "asset": "BTC"
      }
    ]
  }
}