curl --request POST \
  --url https://api.fintoc.com/v2/checkout_sessions \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "flow": "payment",
  "amount": 350000,
  "currency": "CLP",
  "payment_method_types": [
    "bank_transfer"
  ],
  "customer_email": "customer@example.com",
  "success_url": "https://merchant.com/success",
  "cancel_url": "https://merchant.com/cancel"
}
'

import requests

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

payload = {
    "flow": "payment",
    "amount": 350000,
    "currency": "CLP",
    "payment_method_types": ["bank_transfer"],
    "customer_email": "customer@example.com",
    "success_url": "https://merchant.com/success",
    "cancel_url": "https://merchant.com/cancel"
}
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({
    flow: 'payment',
    amount: 350000,
    currency: 'CLP',
    payment_method_types: ['bank_transfer'],
    customer_email: 'customer@example.com',
    success_url: 'https://merchant.com/success',
    cancel_url: 'https://merchant.com/cancel'
  })
};

fetch('https://api.fintoc.com/v2/checkout_sessions', 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/checkout_sessions",
  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([
    'flow' => 'payment',
    'amount' => 350000,
    'currency' => 'CLP',
    'payment_method_types' => [
        'bank_transfer'
    ],
    'customer_email' => 'customer@example.com',
    'success_url' => 'https://merchant.com/success',
    'cancel_url' => 'https://merchant.com/cancel'
  ]),
  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/checkout_sessions"

	payload := strings.NewReader("{\n  \"flow\": \"payment\",\n  \"amount\": 350000,\n  \"currency\": \"CLP\",\n  \"payment_method_types\": [\n    \"bank_transfer\"\n  ],\n  \"customer_email\": \"customer@example.com\",\n  \"success_url\": \"https://merchant.com/success\",\n  \"cancel_url\": \"https://merchant.com/cancel\"\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/checkout_sessions")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"flow\": \"payment\",\n  \"amount\": 350000,\n  \"currency\": \"CLP\",\n  \"payment_method_types\": [\n    \"bank_transfer\"\n  ],\n  \"customer_email\": \"customer@example.com\",\n  \"success_url\": \"https://merchant.com/success\",\n  \"cancel_url\": \"https://merchant.com/cancel\"\n}")
  .asString();

require 'uri'
require 'net/http'

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

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  \"flow\": \"payment\",\n  \"amount\": 350000,\n  \"currency\": \"CLP\",\n  \"payment_method_types\": [\n    \"bank_transfer\"\n  ],\n  \"customer_email\": \"customer@example.com\",\n  \"success_url\": \"https://merchant.com/success\",\n  \"cancel_url\": \"https://merchant.com/cancel\"\n}"

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

{
  "id": "cs_li5531onlFDi235",
  "object": "checkout_session",
  "amount": 350000,
  "business_profile": null,
  "cancel_url": "https://merchant.com/cancel",
  "created_at": "2026-01-13T18:48:25Z",
  "currency": "CLP",
  "customer_email": "customer@example.com",
  "expires_at": "2026-01-14T18:48:25Z",
  "flow": "payment",
  "line_items": null,
  "metadata": {},
  "mode": "live",
  "payment_method": null,
  "payment_method_options": {
    "bank_transfer": {}
  },
  "payment_method_types": [
    "bank_transfer"
  ],
  "payment_resource": null,
  "redirect_url": "https://pay.fintoc.com/cs_li5531onlFDi235",
  "save_payment_method": null,
  "session_token": "eyJhbGciOiJIUzI1NiJ9.eyJpZCI6ImNzX2xpNTUzMSJ9.iV2qAVrqYLuqxF4",
  "setup_intent": null,
  "status": "created",
  "subscription": null,
  "success_url": "https://merchant.com/success"
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_parameter",
    "param": "amount",
    "message": "Missing required param: amount",
    "doc_url": "https://docs.fintoc.com/reference/errors"
  }
}

{
  "error": {
    "type": "authentication_error",
    "message": "No valid API key provided.",
    "code": "invalid_api_key",
    "param": null,
    "doc_url": "https://docs.fintoc.com/reference/errors"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "message": "Bank transfer setup requires fintoc_collects schema (current: direct).",
    "code": "forbidden_request",
    "param": null,
    "doc_url": "https://docs.fintoc.com/reference/errors"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "message": "No such payment_method: pm_nonexistent",
    "code": "missing_resource",
    "param": "payment_method",
    "doc_url": "https://docs.fintoc.com/reference/errors"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "message": "Subscription is canceled: sub_xL9mPq2RkV3WnDQG",
    "code": "subscription_canceled",
    "param": "subscription",
    "doc_url": "https://docs.fintoc.com/reference/errors"
  }
}