DeFi TVL by chain · Defi Chains

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://agent402.tools/api/defi-chains", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "limit": 5
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/defi-chains" \
  -H "Content-Type: application/json" \
  -d '{"limit":5}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "cached": false,
  "chains": [
    {
      "chainId": 1,
      "geckoId": "ethereum",
      "name": "Ethereum",
      "rank": 1,
      "sharePct": 58.3,
      "tokenSymbol": "ETH",
      "tvlUsd": 70000000000
    }
  ],
  "count": 1,
  "fetchedAt": "2026-08-22T12:00:00.000Z",
  "matched": 462,
  "source": "defillama-chains",
  "totals": {
    "chainCount": 462,
    "totalTvlUsd": 120000000000
  }
}