curl --request GET \
  --url https://api.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals

import requests

url = "https://api.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://api.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals', 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.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($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.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals"

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

	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.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.banking.v2.portao3.com.br/realms/{realmId}/organizations/{organizationId}/accounts/{accountId}/wallets/{walletId}/transactions/{transactionId}/reversals")

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

request = Net::HTTP::Get.new(url)

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

{
  "items": [
    {
      "_id": "6710d2e4b4d3e80012c9a1f7",
      "environment": "LIVE",
      "realmId": "f495ff0c-ab54-4f99-8e92-ca8682e4de9b",
      "organizationId": "c4bd3f21-dfbd-44e8-8055-68ba15bed410",
      "accountId": "66f2a1c7b4d3e80012c9a0b4",
      "walletId": "66f2a3d1b4d3e80012c9a0d2",
      "transactionId": "6710c9a1b4d3e80012c9a1e2",
      "status": "CONFIRMED",
      "originalEffectiveAt": "2026-10-16T18:40:11.000Z",
      "originalAmount": 50000,
      "originalCurrency": "986",
      "reversalReason": "USER_REQUESTED",
      "reversalDescription": "Pedido cancelado pelo cliente",
      "reversalEffectiveAt": "2026-10-17T14:22:05.000Z",
      "reversalAmount": 50000,
      "reversalCurrency": "986",
      "processingType": "INSTANT",
      "createdAt": "2026-10-17T14:21:40.000Z",
      "updatedAt": "2026-10-17T14:22:05.000Z",
      "requestedAt": "2026-10-17T14:22:03.000Z",
      "originalPixId": "6710c9a0b4d3e80012c9a1e0",
      "originalPixBillingId": "6710c5f2b4d3e80012c9a1d4",
      "originalReceipt": {
        "endToEndId": "E18236120202611021310s0123456789"
      },
      "originalCreditParty": {
        "_id": "6710d2e4b4d3e80012c9a1f8",
        "bankIspb": "18236120",
        "accountType": "CACC",
        "document": "12345678000190",
        "keyType": "EMAIL",
        "key": "financeiro@cliente.com.br",
        "name": "Cliente Exemplo Ltda",
        "street": "Rua das Flores, 100",
        "city": "Curitiba",
        "state": "PR",
        "postalCode": "80010000",
        "branch": "0001",
        "accountNumber": "123456"
      },
      "originalDebitParty": {
        "_id": "6710d2e4b4d3e80012c9a1f8",
        "bankIspb": "18236120",
        "accountType": "CACC",
        "document": "12345678000190",
        "keyType": "EMAIL",
        "key": "financeiro@cliente.com.br",
        "name": "Cliente Exemplo Ltda",
        "street": "Rua das Flores, 100",
        "city": "Curitiba",
        "state": "PR",
        "postalCode": "80010000",
        "branch": "0001",
        "accountNumber": "123456"
      },
      "reversalAdditionalInformation": "Estorno referente ao pedido 4471",
      "reversalReceipt": {
        "endToEndId": "E18236120202611021310s0123456789"
      },
      "errorCode": "AM04",
      "errorDescription": "Saldo insuficiente na conta do recebedor",
      "external": {
        "reversalId": "rev_6b8f0c2a9d1e4f3a"
      },
      "__v": 0
    }
  ],
  "next": "NjcxMGQyZTRiNGQzZTgwMDEyYzlhMWY3"
}

{
  "traceId": "1-68ee2a1b-3c4d5e6f7a8b9c0d1e2f3a4b",
  "code": "FORBIDDEN_WALLET",
  "origin": "BANKING",
  "message": "You do not have permission to perform this action on this wallet"
}

{
  "traceId": "1-68ee2a1b-3c4d5e6f7a8b9c0d1e2f3a4b",
  "code": "ACCOUNT_NOT_FOUND",
  "origin": "BANKING",
  "message": "Account not found"
}

{
  "traceId": "1-68ee2a1b-3c4d5e6f7a8b9c0d1e2f3a4b",
  "code": "BAD_REQUEST",
  "origin": "BANKING",
  "message": "Bad Request: Your request is invalid or incomplete. Please make sure you are requesting with the right fields.",
  "fields": [
    {
      "field": "limit",
      "message": "Invalid input: expected integer, received string",
      "code": "LIMIT_TYPE_ERROR"
    }
  ]
}