Ejemplos de código

import requests

API_KEY = "ps_live_TU_API_KEY"
BASE = "https://argenapi.com/api/v1"

response = requests.get(
    f"{BASE}/lookup",
    params={"identifier": "0070026930004037264164", "type": "cbu"},
    headers={"Authorization": f"Bearer {API_KEY}"}
)

data = response.json()
if data.get("success"):
    for holder in data["data"]["holders"]:
        print(f"Titular: {holder['full_name']} ({holder['tax_id']})")
    print(f"Banco: {data['data']['bank']['name']}")
    print(f"Créditos restantes: {data['credits_remaining']}")
else:
    print(f"Error: {data.get('error_message')}")

import requests
import time

API_KEY = "ps_live_TU_API_KEY"
BASE = "https://argenapi.com/api/v1"

def lookup_cbu(identifier: str, id_type: str = "cbu") -> dict | None:
    try:
        response = requests.get(
            f"{BASE}/lookup",
            params={"identifier": identifier, "type": id_type},
            headers={"Authorization": f"Bearer {API_KEY}"},
            timeout=15
        )

        if response.status_code == 429:
            reset = int(response.headers.get("X-RateLimit-Reset", time.time() + 60))
            wait = max(reset - int(time.time()), 1)
            print(f"Rate limited. Esperando {wait}s...")
            time.sleep(wait)
            return lookup_cbu(identifier, id_type)

        data = response.json()
        if not data.get("success"):
            print(f"Error {data.get('error_code')}: {data.get('error_message')}")
            return None

        return data["data"]
    except requests.RequestException as e:
        print(f"Error de conexión: {e}")
        return None

# Uso
result = lookup_cbu("0070026930004037264164")
if result:
    print(result["holders"][0]["full_name"])

import requests
import time

API_KEY = "ps_live_TU_API_KEY"
BASE = "https://argenapi.com/api/v1"

cbus = [
    "0070026930004037264164",
    "2850590940090418135201",
    "0140000001600000000015",
]

results = []
for i, cbu in enumerate(cbus):
    response = requests.get(
        f"{BASE}/lookup",
        params={"identifier": cbu, "type": "cbu"},
        headers={"Authorization": f"Bearer {API_KEY}"}
    )

    if response.status_code == 429:
        reset = int(response.headers.get("X-RateLimit-Reset", time.time() + 60))
        time.sleep(max(reset - int(time.time()), 1))
        continue

    data = response.json()
    results.append({"cbu": cbu, "result": data})
    print(f"[{i+1}/{len(cbus)}] {cbu}: {'OK' if data.get('success') else data.get('error_code')}")

    # Respetar rate limit: ~1 req/seg
    time.sleep(1)

const API_KEY = "ps_live_TU_API_KEY";
const BASE = "https://argenapi.com/api/v1";

async function lookupCBU(identifier, type = "cbu") {
  const url = new URL(`${BASE}/lookup`);
  url.searchParams.set("identifier", identifier);
  url.searchParams.set("type", type);

  const res = await fetch(url, {
    headers: { "Authorization": `Bearer ${API_KEY}` }
  });

  const data = await res.json();

  if (!data.success) {
    console.error(`Error ${data.error_code}: ${data.error_message}`);
    return null;
  }

  return data.data;
}

// Uso
const result = await lookupCBU("0070026930004037264164");
if (result) {
  console.log("Titular:", result.holders[0].full_name);
  console.log("Banco:", result.bank.name);
}

async function lookupSafe(identifier, type = "cbu") {
  try {
    const res = await fetch(
      `https://argenapi.com/api/v1/lookup?identifier=${encodeURIComponent(identifier)}&type=${type}`,
      {
        headers: { "Authorization": "Bearer ps_live_TU_API_KEY" },
        signal: AbortSignal.timeout(15000)
      }
    );

    if (res.status === 429) {
      const reset = res.headers.get("X-RateLimit-Reset");
      const wait = reset ? Math.max(Number(reset) - Math.floor(Date.now() / 1000), 1) : 60;
      console.log(`Rate limited. Reintentando en ${wait}s...`);
      await new Promise(r => setTimeout(r, wait * 1000));
      return lookupSafe(identifier, type);
    }

    return await res.json();
  } catch (err) {
    console.error("Error:", err.message);
    return { success: false, error_message: err.message };
  }
}

<?php
$api_key = "ps_live_TU_API_KEY";
$base_url = "https://argenapi.com/api/v1";

function lookupCBU(string $identifier, string $type = "cbu"): ?array {
    global $api_key, $base_url;

    $url = $base_url . "/lookup?" . http_build_query([
        "identifier" => $identifier,
        "type" => $type,
    ]);

    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ["Authorization: Bearer $api_key"]);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 15);
    $response = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    $data = json_decode($response, true);

    if ($httpCode === 429) {
        echo "Rate limited. Esperando...\n";
        sleep(60);
        return lookupCBU($identifier, $type);
    }

    if (!($data["success"] ?? false)) {
        echo "Error: " . ($data["error_message"] ?? "desconocido") . "\n";
        return null;
    }

    return $data["data"];
}

// Uso
$result = lookupCBU("0070026930004037264164");
if ($result) {
    echo "Titular: " . $result["holders"][0]["full_name"] . "\n";
    echo "Banco: " . $result["bank"]["name"] . "\n";
}
?>

const API_KEY = "ps_live_TU_API_KEY";
const BASE = "https://argenapi.com/api/v1";

/**
 * Consulta el titular de un CBU o Alias.
 * @param {string} identifier CBU (22 dígitos) o Alias
 * @param {string} type "cbu" o "alias" (default: "cbu")
 * @return {string} Nombre del titular
 * @customfunction
 */
function CONSULTAR_CBU(identifier, type) {
  type = type || "cbu";
  var url = BASE + "/lookup?identifier=" + encodeURIComponent(identifier) + "&type=" + type;

  var options = {
    method: "get",
    headers: { "Authorization": "Bearer " + API_KEY },
    muteHttpExceptions: true
  };

  var response = UrlFetchApp.fetch(url, options);
  var data = JSON.parse(response.getContentText());

  if (!data.success) {
    return "Error: " + (data.error_message || data.error_code);
  }

  return data.data.holders.map(function(o) { return o.full_name; }).join(", ");
}