Defi Stablecoins

{
  "as_of": "2026-10-13T03:45:23Z",
  "cache_age_hours": 0,
  "chain": null,
  "coins": [
    {
      "chain_count": 104,
      "chains": [
        {
          "chain": "Tron",
          "change_1d_pct": -0.04,
          "change_30d_pct": 0.57,
          "change_7d_pct": 0.58,
          "circulating_usd": 93165201336,
          "share_pct": 50.63
        },
        {
          "chain": "Ethereum",
          "change_1d_pct": 0.04,
          "change_30d_pct": -0.44,
          "change_7d_pct": -0.48,
          "circulating_usd": 73138538609,
          "share_pct": 39.74
        },
        {
          "chain": "BSC",
          "change_1d_pct": 0,
          "change_30d_pct": 0,
          "change_7d_pct": 0,
          "circulating_usd": 9177315799,
          "share_pct": 4.99
        }
      ],
      "change_1d_pct": -0.03,
      "change_30d_pct": 0.34,
      "change_7d_pct": -0.01,
      "circulating": 184021405444.78,
      "circulating_usd": 184021405445,
      "mechanism": "fiat-backed",
      "name": "Tether",
      "peg": "USD",
      "price_usd": 0.99922,
      "share_pct": 58.6,
      "symbol": "USDT"
    }
  ],
  "market": {
    "change_1d_pct": 0.21,
    "change_30d_pct": 0.23,
    "change_7d_pct": -0.17,
    "coin_count": 427,
    "total_usd": 314014973873
  },
  "note": "Supply is what DefiLlama counts as circulating on each chain. circulating is in the coin's own peg unit (USD, EUR, ...); circulating_usd counts USD-pegged coins at USD 1 (DefiLlama's convention) and other pegs at the coin's USD price. Coins sharing a symbol are listed separately. Changes compare with the supply 1, 7 and 30 days earlier. Cached data, not live: see as_of. Informational only, not investment advice.",
  "reason": null,
  "scope": "coin",
  "source": "Data: DefiLlama (used with permission), served from Tanod's cache, refreshed every few hours",
  "stale": false,
  "top_chains": []
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/defi/stablecoins' \
  -H 'content-type: application/json' \
  --data-raw '{"coin":"USDT","limit":3}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://tanod.dev/v1/defi/stablecoins' \
  -H 'content-type: application/json' \
  --data-raw '{"coin":"USDT","limit":3}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fdefi%2Fstablecoins&method=POST
const res = await pay("https://tanod.dev/v1/defi/stablecoins", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "coin": "USDT",
    "limit": 3
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/defi/stablecoins",
        json={
            "coin": "USDT",
            "limit": 3,
        },
    )
    print(res.status_code, res.text)