curl --request POST \
  --url https://api.fintoc.com/v2/account_numbers \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "account_id": "acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA",
  "description": "Payouts CLABE",
  "metadata": {
    "invoice_id": "12345"
  },
  "options": {
    "min_amount": 1000,
    "max_amount": 1000000
  }
}
'

import requests

url = "https://api.fintoc.com/v2/account_numbers"

payload = {
    "account_id": "acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA",
    "description": "Payouts CLABE",
    "metadata": { "invoice_id": "12345" },
    "options": {
        "min_amount": 1000,
        "max_amount": 1000000
    }
}
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({
    account_id: 'acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA',
    description: 'Payouts CLABE',
    metadata: {invoice_id: '12345'},
    options: {min_amount: 1000, max_amount: 1000000}
  })
};

fetch('https://api.fintoc.com/v2/account_numbers', 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/account_numbers",
  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([
    'account_id' => 'acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA',
    'description' => 'Payouts CLABE',
    'metadata' => [
        'invoice_id' => '12345'
    ],
    'options' => [
        'min_amount' => 1000,
        'max_amount' => 1000000
    ]
  ]),
  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.fintoc.com/v2/account_numbers"

	payload := strings.NewReader("{\n  \"account_id\": \"acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA\",\n  \"description\": \"Payouts CLABE\",\n  \"metadata\": {\n    \"invoice_id\": \"12345\"\n  },\n  \"options\": {\n    \"min_amount\": 1000,\n    \"max_amount\": 1000000\n  }\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.fintoc.com/v2/account_numbers")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"account_id\": \"acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA\",\n  \"description\": \"Payouts CLABE\",\n  \"metadata\": {\n    \"invoice_id\": \"12345\"\n  },\n  \"options\": {\n    \"min_amount\": 1000,\n    \"max_amount\": 1000000\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

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

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  \"account_id\": \"acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA\",\n  \"description\": \"Payouts CLABE\",\n  \"metadata\": {\n    \"invoice_id\": \"12345\"\n  },\n  \"options\": {\n    \"min_amount\": 1000,\n    \"max_amount\": 1000000\n  }\n}"

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

{
  "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": null,
  "metadata": {
    "invoice_id": "12345"
  },
  "mode": "test",
  "number": "646180111800000000",
  "options": {
    "min_amount": 1000,
    "max_amount": 1000000
  },
  "status": "enabled",
  "updated_at": "2026-03-01T12:00:00.000Z"
}

{
  "error": {
    "code": "missing_parameter",
    "message": "Missing required param: account_id",
    "param": "account_id"
  }
}

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

{
  "error": {
    "code": "invalid_account",
    "message": "Unable to create account number for account acc_2hQ9vBmKpR7xLtZ3sWn1fJ4dGcA. Action not available in your region"
  }
}