curl https://api.palpluss.com/v1/wallets/service/balance \
  -u "pk_live_xxxxxxxxxxxxxxxxxxxx:"

const response = await fetch("https://api.palpluss.com/v1/wallets/service/balance", {
  headers: {
    Authorization: "Basic " + Buffer.from("pk_live_xxxxxxxxxxxxxxxxxxxx:").toString("base64"),
  },
});
const data = await response.json();

import requests

response = requests.get(
    "https://api.palpluss.com/v1/wallets/service/balance",
    auth=("pk_live_xxxxxxxxxxxxxxxxxxxx", ""),
)
data = response.json()

$apiKey = "pk_live_xxxxxxxxxxxxxxxxxxxx";
$ch = curl_init("https://api.palpluss.com/v1/wallets/service/balance");
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($ch, CURLOPT_USERPWD, "$apiKey:");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = json_decode(curl_exec($ch), true);

package main

import (
  "encoding/base64"
  "fmt"
  "net/http"
)

func main() {
  apiKey := "pk_live_xxxxxxxxxxxxxxxxxxxx"
  token := base64.StdEncoding.EncodeToString([]byte(apiKey + ":"))

  req, _ := http.NewRequest("GET", "https://api.palpluss.com/v1/wallets/service/balance", nil)
  req.Header.Set("Authorization", "Basic "+token)

  client := &http.Client{}
  resp, _ := client.Do(req)
  fmt.Println(resp.Status)
}