curl --location 'https://kf.pikabao.cc/agent/v1/cards/bins?appid=user123&timestamp=1640995200000&sign=ABC123...'

const params = {
  appid: "user123",
  timestamp: Date.now().toString(),
};

const sign = generateSign(params, secretKey);

const response = await fetch(
  `https://kf.pikabao.cc/agent/v1/cards/bins?${new URLSearchParams({...params, sign})}`
);
const bins = await response.json();

{
  "code": 0,
  "msg": "成功",
  "content": [
    {
      "id": "240820174023000001",
      "bin": "491090",
      "cr": "美国",
      "organization": "VISA",
      "actualOpenCardPrice": "2.00",
      "actualRechargeFeeRate": "3.00%",
      "enable": true,
      "description": "美国 VISA 虚拟卡"
    },
    {
      "id": "240820174023000002",
      "bin": "554866",
      "cr": "美国",
      "organization": "MASTERCARD",
      "actualOpenCardPrice": "2.00",
      "actualRechargeFeeRate": "3.00%",
      "enable": true,
      "description": "美国 MasterCard 虚拟卡"
    }
  ]
}