curl --request POST \
  --url https://v2.prod.halliday.xyz/payments/balances \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "payment_id": "pay_abc123",
  "custom_queries": [
    {
      "address": "0xabc1234567890abcdef1234567890abcdef1234",
      "token": "ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
    },
    {
      "address": "0xdef1234567890abcdef1234567890abcdef5678",
      "token": "arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf"
    }
  ]
}
'

import requests

url = "https://v2.prod.halliday.xyz/payments/balances"

payload = {
    "payment_id": "pay_abc123",
    "custom_queries": [
        {
            "address": "0xabc1234567890abcdef1234567890abcdef1234",
            "token": "ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
        },
        {
            "address": "0xdef1234567890abcdef1234567890abcdef5678",
            "token": "arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf"
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    payment_id: 'pay_abc123',
    custom_queries: [
      {
        address: '0xabc1234567890abcdef1234567890abcdef1234',
        token: 'ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48'
      },
      {
        address: '0xdef1234567890abcdef1234567890abcdef5678',
        token: 'arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf'
      }
    ]
  })
};

fetch('https://v2.prod.halliday.xyz/payments/balances', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://v2.prod.halliday.xyz/payments/balances",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'payment_id' => 'pay_abc123',
    'custom_queries' => [
        [
                'address' => '0xabc1234567890abcdef1234567890abcdef1234',
                'token' => 'ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48'
        ],
        [
                'address' => '0xdef1234567890abcdef1234567890abcdef5678',
                'token' => 'arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://v2.prod.halliday.xyz/payments/balances"

	payload := strings.NewReader("{\n  \"payment_id\": \"pay_abc123\",\n  \"custom_queries\": [\n    {\n      \"address\": \"0xabc1234567890abcdef1234567890abcdef1234\",\n      \"token\": \"ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\"\n    },\n    {\n      \"address\": \"0xdef1234567890abcdef1234567890abcdef5678\",\n      \"token\": \"arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://v2.prod.halliday.xyz/payments/balances")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"payment_id\": \"pay_abc123\",\n  \"custom_queries\": [\n    {\n      \"address\": \"0xabc1234567890abcdef1234567890abcdef1234\",\n      \"token\": \"ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\"\n    },\n    {\n      \"address\": \"0xdef1234567890abcdef1234567890abcdef5678\",\n      \"token\": \"arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://v2.prod.halliday.xyz/payments/balances")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"payment_id\": \"pay_abc123\",\n  \"custom_queries\": [\n    {\n      \"address\": \"0xabc1234567890abcdef1234567890abcdef1234\",\n      \"token\": \"ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\"\n    },\n    {\n      \"address\": \"0xdef1234567890abcdef1234567890abcdef5678\",\n      \"token\": \"arbitrum:0xfffFFFFFfFFfffFFfFffffFffFFfFFfFFfFFf\"\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "balance_results": [
    {
      "address": "0xabc1234567890abcdef1234567890abcdef1234",
      "token": "ethereum:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "value": {
        "kind": "amount",
        "amount": "<string>",
        "withdrawal_fee": "<string>"
      }
    }
  ]
}

{
  "errors": [
    {
      "kind": "other",
      "message": "Invalid wallet address format"
    }
  ]
}

{
  "errors": [
    {
      "kind": "other",
      "message": "Invalid API key"
    }
  ]
}

{
  "errors": [
    {
      "kind": "other",
      "message": "You do not have permission to query payment balances"
    }
  ]
}

{
  "errors": [
    {
      "kind": "other",
      "message": "Payment 'pay_abc123' not found"
    }
  ]
}