La API de envíos a NatCash y MonCash para apps de transferencias

# 1) Cotizar
curl -X POST https://api.levapay.dev/test/v1/transfers/quote \
  -H "Content-Type: application/json" \
  -H "X-Api-User: su_usuario_api" \
  -H "X-Api-Key: su_PRIVATE_KEY" \
  -d '{"network":"natcash","wallet":"50938123456","amount_htg":5000}'

# 2) Enviar
curl -X POST https://api.levapay.dev/test/v1/transfers \
  -H "Content-Type: application/json" \
  -H "X-Api-User: su_usuario_api" \
  -H "X-Api-Key: su_PRIVATE_KEY" \
  -d '{"quote_id":"qt_...","idempotency_key":"orden-10025"}'

<?php
$base = 'https://api.levapay.dev/test/v1';
$headers = [
    'Content-Type: application/json',
    'X-Api-User: su_usuario_api',
    'X-Api-Key: su_PRIVATE_KEY',
];

function levapay(string $url, array $body, array $headers): array {
    $ch = curl_init($url);
    curl_setopt_array($ch, [
        CURLOPT_POST => true,
        CURLOPT_HTTPHEADER => $headers,
        CURLOPT_POSTFIELDS => json_encode($body),
        CURLOPT_RETURNTRANSFER => true,
    ]);
    return json_decode(curl_exec($ch), true);
}

$quote = levapay("$base/transfers/quote", [
    'network' => 'moncash', 'wallet' => '50937123456', 'amount_htg' => 5000,
], $headers);

$transfer = levapay("$base/transfers", [
    'quote_id' => $quote['data']['quote_id'],
    'idempotency_key' => 'orden-10025',
], $headers);

const base = 'https://api.levapay.dev/test/v1';
const headers = {
  'Content-Type': 'application/json',
  'X-Api-User': 'su_usuario_api',
  'X-Api-Key': process.env.LEVAPAY_KEY,
};

const post = (path, body) =>
  fetch(base + path, { method: 'POST', headers, body: JSON.stringify(body) })
    .then((r) => r.json());

const quote = await post('/transfers/quote', {
  network: 'natcash', wallet: '50938123456', amount_htg: 5000,
});

const transfer = await post('/transfers', {
  quote_id: quote.data.quote_id,
  idempotency_key: 'orden-10025',
});