curl --request GET \
  --url https://api.sandbox.lead.bank/v2/core_transactions \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.sandbox.lead.bank/v2/core_transactions"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.sandbox.lead.bank/v2/core_transactions', 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.sandbox.lead.bank/v2/core_transactions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.sandbox.lead.bank/v2/core_transactions"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.sandbox.lead.bank/v2/core_transactions")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sandbox.lead.bank/v2/core_transactions")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "objects": [
    {
      "id": "core_transaction_xyz123",
      "core_balance_id": "core_balance_xyz123",
      "type": "ach",
      "description": "ACH settlement — Payroll deposit",
      "amount": 150000,
      "currency_code": "USD",
      "created_at": "2026-04-01T09:00:05Z",
      "updated_at": "2026-04-01T09:00:05Z"
    }
  ],
  "has_more": true
}

{
  "code": "request_malformed",
  "message": "The request is invalid and cannot be parsed by the server.",
  "errors": [
    {
      "code": "url_malformed",
      "message": "The query string could not be parsed."
    }
  ]
}

{
  "code": "authentication_missing",
  "message": "No authentication credentials were provided."
}

{
  "code": "source_ip_not_allowed",
  "message": "The client making the request is not on Lead's IP allowlist."
}

{
  "code": "parameters_invalid",
  "message": "One or more parameters are invalid.",
  "errors": [
    {
      "code": "required",
      "message": "core_balance_id is required.",
      "parameters": [
        "core_balance_id"
      ]
    },
    {
      "code": "not_in_allowed_set",
      "message": "type is not a valid Core Transaction type.",
      "parameters": [
        "type"
      ]
    }
  ]
}

{
  "code": "rate_limit_exceeded",
  "message": "You have exceeded the rate limit for this endpoint. Retry after the limit resets."
}

{
  "code": "internal_server_error",
  "message": "Something went wrong on our end. Contact Lead with the Request-Id if this persists."
}

{
  "code": "endpoint_disabled",
  "message": "This endpoint is temporarily disabled. Retry after the indicated delay."
}

{
  "code": "gateway_timeout",
  "message": "An upstream system timed out. Retry with backoff."
}