curl --request POST \
  --url https://api.fintoc.com/v2/transfers/return \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --header 'Fintoc-JWS-Signature: <fintoc-jws-signature>' \
  --data '
{
  "transfer_id": "tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN"
}
'

import requests

url = "https://api.fintoc.com/v2/transfers/return"

payload = { "transfer_id": "tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN" }
headers = {
    "Fintoc-JWS-Signature": "<fintoc-jws-signature>",
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Fintoc-JWS-Signature': '<fintoc-jws-signature>',
    Authorization: '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({transfer_id: 'tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN'})
};

fetch('https://api.fintoc.com/v2/transfers/return', 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.fintoc.com/v2/transfers/return",
  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([
    'transfer_id' => 'tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json",
    "Fintoc-JWS-Signature: <fintoc-jws-signature>"
  ],
]);

$response = curl_exec($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.fintoc.com/v2/transfers/return"

	payload := strings.NewReader("{\n  \"transfer_id\": \"tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN\"\n}")

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

	req.Header.Add("Fintoc-JWS-Signature", "<fintoc-jws-signature>")
	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.fintoc.com/v2/transfers/return")
  .header("Fintoc-JWS-Signature", "<fintoc-jws-signature>")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"transfer_id\": \"tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fintoc.com/v2/transfers/return")

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

request = Net::HTTP::Post.new(url)
request["Fintoc-JWS-Signature"] = '<fintoc-jws-signature>'
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"transfer_id\": \"tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN\"\n}"

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

{
  "id": "tr_2daFu0zqqDtZGJaSi2TGI2Mm1nN",
  "object": "transfer",
  "account_number": {
    "id": "acno_2daFu0zqqDtZGJaSi2TGI2Mm1nN",
    "object": "account_number",
    "account_id": "acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA",
    "created_at": "2026-03-01T12:00:00.000Z",
    "deleted_at": null,
    "description": "Payouts CLABE",
    "is_root": false,
    "last_transfer_at": "2026-03-01T12:00:00.000Z",
    "metadata": {
      "invoice_id": "12345"
    },
    "mode": "test",
    "number": "646180111800000004",
    "options": {
      "min_amount": 1000,
      "max_amount": 1000000
    },
    "status": "enabled",
    "updated_at": "2026-03-01T12:00:00.000Z"
  },
  "amount": 50000,
  "comment": "Payout March",
  "counterparty": {
    "account_number": "132000000000000004",
    "account_type": "clabe",
    "email": null,
    "holder_id": null,
    "holder_name": "Test Customer 1",
    "institution": {
      "id": "40132",
      "name": "MULTIVA BANCO",
      "country": "mx"
    }
  },
  "currency": "MXN",
  "direction": "inbound",
  "metadata": {
    "test_key": "test_value"
  },
  "mode": "test",
  "post_date": null,
  "receipt_url": null,
  "reference_id": null,
  "return_reason": null,
  "status": "return_pending",
  "tracking_key": null,
  "transaction_date": "2026-03-01T12:00:00.000Z"
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_parameter",
    "message": "Missing required param: transfer_id"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "invalid_api_key",
    "message": "Invalid API Key: invalid-*oken"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "resource_not_found",
    "message": "Transfer not found: tr_missing"
  }
}