Client API

Upgrade (Redeem License)

POST https://libreauth.nutexe.dev/api/1.3/

Apply a license key to an existing user account to extend or change subscription.

LibreAuth API v1.3 · type=upgrade

Query Params

type string required

Example: upgrade

Request action name

name string required

Example: MyApp

Application name from Seller Panel

ownerid string required

Example: XXXXXXXXXX

10-character Owner ID from panel credentials

sessionid string required

Example: your_session_id

Session ID returned by init

username string required

Example: user123

Existing username

key string required

Example: XXXX-XXXX

License key to redeem

Request Code Samples

Shell

curl -X POST 'https://libreauth.nutexe.dev/api/1.3/' \
  -H 'Content-Type: application/x-www-form-urlencoded' \
  -d 'type=upgrade&name=MyApp&ownerid=XXXXXXXXXX&sessionid=your_session_id&username=user123&key=XXXX-XXXX'

app := libreauth.New("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/")
app.Init()
app.Upgrade("user123", "XXXX-XXXX")

PHP

<?php
$ch = curl_init('https://libreauth.nutexe.dev/api/1.3/');
curl_setopt_array($ch, [CURLOPT_POST => true, CURLOPT_POSTFIELDS => 'type=upgrade&name=MyApp&ownerid=XXXXXXXXXX&sessionid=your_session_id&username=user123&key=XXXX-XXXX', CURLOPT_HTTPHEADER => ['Content-Type: application/x-www-form-urlencoded'], CURLOPT_RETURNTRANSFER => true]);
echo curl_exec($ch);

Python

import requests
res = requests.post('https://libreauth.nutexe.dev/api/1.3/', data={
    'type': 'upgrade',
    'name': 'MyApp',
    'ownerid': 'XXXXXXXXXX',
    'sessionid': 'your_session_id',
    'username': 'user123',
    'key': 'XXXX-XXXX'
})
print(res.json())

HTTP

POST /api/1.3/ HTTP/1.1
Host: libreauth.nutexe.dev
Content-Type: application/x-www-form-urlencoded

type=upgrade&name=MyApp&ownerid=XXXXXXXXXX&sessionid=your_session_id&username=user123&key=XXXX-XXXX

var app = new LibreAuth("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
await app.InitAsync();
await app.UpgradeAsync("user123", "XXXX-XXXX");

C++

LibreAuth::Client app("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
app.init();
app.upgrade("user123", "XXXX-XXXX");

JavaScript

const body = new URLSearchParams({
  type: 'upgrade',
  name: 'MyApp',
  ownerid: 'XXXXXXXXXX',
  sessionid: 'your_session_id',
  username: 'user123',
  key: 'XXXX-XXXX'
});
fetch('https://libreauth.nutexe.dev/api/1.3/', { method: 'POST', headers: { 'Content-Type': 'application/x-www-form-urlencoded' }, body: body.toString() })
  .then(r => r.json()).then(console.log);

TypeScript

const app = new LibreAuth('MyApp', 'XXXXXXXXXX', '1.0', 'https://libreauth.nutexe.dev/api/1.3/');
await app.init();
await app.upgrade('user123', 'XXXX-XXXX');

Java

LibreAuth app = new LibreAuth("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
app.init();
app.upgrade("user123", "XXXX-XXXX");

Rust

let mut app = LibreAuth::new("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
app.init()?;
app.upgrade("user123", "XXXX-XXXX")?;

Ruby

app = LibreAuth.new('MyApp', 'XXXXXXXXXX', '1.0', 'https://libreauth.nutexe.dev/api/1.3/')
app.init
app.upgrade('user123', 'XXXX-XXXX')

Perl

my $app = LibreAuth->new('MyApp', 'XXXXXXXXXX', '1.0', 'https://libreauth.nutexe.dev/api/1.3/');
$app->init;
$app->upgrade('user123', 'XXXX-XXXX');

Lua

local app = LibreAuth.new('MyApp', 'XXXXXXXXXX', '1.0', 'https://libreauth.nutexe.dev/api/1.3/')
app:init()
app:upgrade('user123', 'XXXX-XXXX')

React

const app = new LibreAuth('MyApp', 'XXXXXXXXXX', '1.0', process.env.REACT_APP_API_URL);
await app.Init();
await app.Upgrade('user123', 'XXXX-XXXX');

Vue

const app = new LibreAuth('MyApp', 'XXXXXXXXXX', '1.0', import.meta.env.VITE_API_URL);
await app.Init();
await app.Upgrade('user123', 'XXXX-XXXX');

Unity

var app = new LibreAuth("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
await app.InitAsync();
await app.UpgradeAsync("user123", "XXXX-XXXX");

WPF

var app = new LibreAuth("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
await app.InitAsync();
await app.UpgradeAsync("user123", "XXXX-XXXX");

VB.NET

var app = new LibreAuth("MyApp", "XXXXXXXXXX", "1.0", "https://libreauth.nutexe.dev/api/1.3/");
await app.InitAsync();
await app.UpgradeAsync("user123", "XXXX-XXXX");

Responses

application/json · object

{
  "success": true,
  "message": "Upgraded successfully",
  "nonce": ""
}