curl --request POST \
  --url https://api-partner.onecluster.co/api/v1/payments/account-enquiry \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountNumber": "0123456789",
  "bankCode": "058"
}
'

import requests

url = "https://api-partner.onecluster.co/api/v1/payments/account-enquiry"

payload = {
    "accountNumber": "0123456789",
    "bankCode": "058"
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({accountNumber: '0123456789', bankCode: '058'})
};

fetch('https://api-partner.onecluster.co/api/v1/payments/account-enquiry', 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://api-partner.onecluster.co/api/v1/payments/account-enquiry",
  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([
    'accountNumber' => '0123456789',
    'bankCode' => '058'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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://api-partner.onecluster.co/api/v1/payments/account-enquiry"

	payload := strings.NewReader("{\n  \"accountNumber\": \"0123456789\",\n  \"bankCode\": \"058\"\n}")

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

	req.Header.Add("Authorization", "<api-key>")
	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://api-partner.onecluster.co/api/v1/payments/account-enquiry")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"accountNumber\": \"0123456789\",\n  \"bankCode\": \"058\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-partner.onecluster.co/api/v1/payments/account-enquiry")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"accountNumber\": \"0123456789\",\n  \"bankCode\": \"058\"\n}"

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

{
  "success": true,
  "responseCode": "00",
  "message": "Account validated",
  "data": {
    "accountName": "ADEBAYO JOHNSON",
    "accountNumber": "0123456789",
    "bankCode": "058",
    "bankName": "GTBank",
    "nameEnquirySessionId": "NES-20260325-ABC123"
  }
}

{
  "type": "https://api.onecluster.co/errors/insufficient-funds",
  "title": "Insufficient Funds",
  "status": 422,
  "detail": "The account balance is ₦0.00. You need at least ₦50,000.00 to complete this transfer.",
  "instance": "/api/v1/payments/transfer",
  "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "code": "INSUFFICIENT_FUNDS"
}

{
  "type": "https://api.onecluster.co/errors/insufficient-funds",
  "title": "Insufficient Funds",
  "status": 422,
  "detail": "The account balance is ₦0.00. You need at least ₦50,000.00 to complete this transfer.",
  "instance": "/api/v1/payments/transfer",
  "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "code": "INSUFFICIENT_FUNDS"
}