Cex Reservas Pago

{
  "exchanges": [
    {
      "carteras": "https://www.binance.com/en/blog/community/our-commitment-to-transparency-2895840147147652626",
      "exchange": "Binance",
      "flujo_neto_24h_usd": -695058369,
      "flujo_neto_30d_usd": 838321112,
      "flujo_neto_7d_usd": -313385238,
      "interes_abierto_usd": 30566285698,
      "reservas_sin_token_propio_usd": 150250661259,
      "reservas_usd": 177513791205,
      "volumen_derivados_24h_usd": 84904610396,
      "volumen_spot_24h_usd": 14541124724
    },
    {
      "carteras": "https://twitter.com/okx/status/1590812545346330624",
      "exchange": "OKX",
      "flujo_neto_24h_usd": -31768684,
      "flujo_neto_30d_usd": 504825312,
      "flujo_neto_7d_usd": -862913,
      "interes_abierto_usd": 7956708261,
      "reservas_sin_token_propio_usd": 30289714450,
      "reservas_usd": 31771034350,
      "volumen_derivados_24h_usd": 31547594881,
      "volumen_spot_24h_usd": 3444758308
    }
  ],
  "fuente": "DefiLlama (carteras publicadas por cada exchange)",
  "nota": "Solo lo que está en carteras conocidas; no es una auditoría de solvencia.",
  "orden": "reservas"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/cex-reservas-pago' \
  -H 'content-type: application/json' \
  --data-raw '{"limite":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://api.vextorium.com/cex-reservas-pago' \
  -H 'content-type: application/json' \
  --data-raw '{"limite":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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fcex-reservas-pago&method=POST
const res = await pay("https://api.vextorium.com/cex-reservas-pago", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limite": 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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/cex-reservas-pago",
        json={
            "limite": 3,
        },
    )
    print(res.status_code, res.text)