Ranking Paises Pago

{
  "codigo_bm": "NY.GDP.PCAP.CD",
  "fuente": "Banco Mundial, World Development Indicators (CC BY 4.0)",
  "indicador": "pib_per_capita_usd",
  "orden": "mayor",
  "paises": 210,
  "ranking": [
    {
      "anio": 2024,
      "nombre": "Monaco",
      "pais": "MCO",
      "posicion": 1,
      "valor": 288001.575
    },
    {
      "anio": 2024,
      "nombre": "Liechtenstein",
      "pais": "LIE",
      "posicion": 2,
      "valor": 220167.225
    },
    {
      "anio": 2025,
      "nombre": "Luxembourg",
      "pais": "LUX",
      "posicion": 3,
      "valor": 147252.179
    },
    {
      "anio": 2024,
      "nombre": "Bermuda",
      "pais": "BMU",
      "posicion": 4,
      "valor": 142250.433
    },
    {
      "anio": 2025,
      "nombre": "Ireland",
      "pais": "IRL",
      "posicion": 5,
      "valor": 131592.463
    },
    {
      "anio": 2025,
      "nombre": "Switzerland",
      "pais": "CHE",
      "posicion": 6,
      "valor": 114769.012
    },
    {
      "anio": 2024,
      "nombre": "Cayman Islands",
      "pais": "CYM",
      "posicion": 7,
      "valor": 104292.901
    },
    {
      "anio": 2025,
      "nombre": "Singapore",
      "pais": "SGP",
      "posicion": 8,
      "valor": 98813.979
    },
    {
      "anio": 2025,
      "nombre": "Iceland",
      "pais": "ISL",
      "posicion": 9,
      "valor": 98323.485
    },
    {
      "anio": 2025,
      "nombre": "Norway",
      "pais": "NOR",
      "posicion": 10,
      "valor": 94594.193
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/ranking-paises-pago' \
  -H 'content-type: application/json' \
  --data-raw '{"indicador":"pib_per_capita_usd","limite":10}'

# 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/ranking-paises-pago' \
  -H 'content-type: application/json' \
  --data-raw '{"indicador":"pib_per_capita_usd","limite":10}' \
  | 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%2Franking-paises-pago&method=POST
const res = await pay("https://api.vextorium.com/ranking-paises-pago", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "indicador": "pib_per_capita_usd",
    "limite": 10
  }),
});
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/ranking-paises-pago",
        json={
            "indicador": "pib_per_capita_usd",
            "limite": 10,
        },
    )
    print(res.status_code, res.text)