diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4e3f01e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,17 @@
+# Blacklist files/folders in same directory as the .gitignore file
+/*
+vendor
+
+# Whitelist some files
+!.gitignore
+!README.md
+
+!modules/
+modules/*
+!modules/gateways/
+modules/gateways/*
+!modules/gateways/xendit/
+!modules/gateways/xendit.php
+
+modules/gateways/callback
+!modules/gateways/callback/xendit.php
diff --git a/README.md b/README.md
index f2d846d..f29a931 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,41 @@
-# xendit-whmcs
+# Xendit Payment Gateway Module for WHMCS #
+
+## Summary ##	
+
+Xendit Payment Gateway allow you to enable the multi payment channels on WHMCS
+
+## System requirements
+This module has been tested against the following tech stacks:
+
+| Requirement            | Minimum                                                     | Recommended                                                       |
+|------------------------|-------------------------------------------------------------|-------------------------------------------------------------------|
+| PHP Version            | 7.2                                                         | Latest 7.3 or 7.4 Release                                         |
+| PHP Memory Limit       | 64MB                                                        | 128MB**                                                           |
+| PHP Database Extension | PDO                                                         | PDO                                                               |
+| PHP Extensions         | Curl with SSL*** , GD2 Image Library, JSON Support, XML 	  | Iconv, MBString, GMP, OpenSSL***, BC Math, Intl, Fileinfo 	 |
+| MySQL Version          | 5.2.0                                                       | Latest 5.7                                                        |
+| Ioncube Loaders        | 10.4.5 or later                                             | The latest 11.x Ioncube for your PHP version                      |
+
+For the latest WHMCS minimum system requirements, please refer to
+https://docs.whmcs.com/System_Requirements
+
+## Installation ##
+- Clone this to your directory
+- Copy `modules/gateways/xendit` to your `<root directory>/modules/gateways`
+- Copy `modules/gateways/callback/xendit.php` to your `<root directory>/modules/gateways/callback`
+
+## Configuration ##
+1. Access your WHMCS admin page.
+2. Go to menu Setup -> Payments -> Payment Gateways.
+3. There are will be `**Xendit Payment Gateway Module**`
+4. Then choose Setup -> Payments -> Payment Gateways -> Manage Existing Gateways
+5. Put the `secretKey` and `publicKey` (Open Xendit Dashboard > Settings > API Keys > Generate Secret Key > Copy SecretKey & PublicKey)
+6. Click Save Changes
+
+## Ownership
+
+Team: [TPI Team](https://www.draw.io/?state=%7B%22ids%22:%5B%221Vk1zqYgX2YqjJYieQ6qDPh0PhB2yAd0j%22%5D,%22action%22:%22open%22,%22userId%22:%22104938211257040552218%22%7D)
+
+Slack Channel: [#integration-product](https://xendit.slack.com/messages/integration-product)
+
+Slack Mentions: `@troops-tpi`
diff --git a/modules/gateways/xendit.php b/modules/gateways/xendit.php
new file mode 100644
index 0000000..2e7af8d
--- /dev/null
+++ b/modules/gateways/xendit.php
@@ -0,0 +1,116 @@
+<?php
+
+//autoload gateway functions
+require_once __DIR__ . '/../../includes/gatewayfunctions.php';
+
+require __DIR__ .'/xendit/autoload.php';
+require __DIR__ .'/xendit/hooks.php';
+
+use WHMCS\Billing\Invoice;
+
+if (!defined("WHMCS")) {
+    die("This file cannot be accessed directly");
+}
+
+/**
+ * @return array
+ */
+function xendit_MetaData()
+{
+    return array(
+        'DisplayName' => 'Xendit Payment Gateway',
+        'APIVersion' => '1.1'
+    );
+}
+
+function xendit_storeremote($params){}
+
+/**
+ * @return array
+ */
+function xendit_config()
+{
+    (new \Xendit\Lib\ActionBase())->createTable();
+    return (new \Xendit\Lib\ActionBase())->createConfig();
+}
+
+/**
+ * @param $params
+ * @return string
+ * @throws Exception
+ */
+function xendit_link($params)
+{
+    return (new \Xendit\Lib\Link())->generatePaymentLink($params);
+}
+
+/**
+ * No local credit card input.
+ *
+ * This is a required function declaration. Denotes that the module should
+ * not allow local card data input.
+ */
+function xendit_nolocalcc() {}
+
+/**
+ * Remote input.
+ *
+ * Called when a pay method is requested to be created or a payment is
+ * being attempted.
+ *
+ * New pay methods can be created or added without a payment being due.
+ * In these scenarios, the amount parameter will be empty and the workflow
+ * should be to create a token without performing a charge.
+ *
+ * @param array $params Payment Gateway Module Parameters
+ *
+ * @see https://developers.whmcs.com/payment-gateways/remote-input-gateway/
+ *
+ * @return array
+ */
+function xendit_remoteinput($params)
+{
+
+}
+
+/**
+ * Remote update.
+ *
+ * Called when a pay method is requested to be updated.
+ *
+ * The expected return of this function is direct HTML output. It provides
+ * more flexibility than the remote input function by not restricting the
+ * return to a form that is posted into an iframe. We still recommend using
+ * an iframe where possible and this sample demonstrates use of an iframe,
+ * but the update can sometimes be handled by way of a modal, popup or
+ * other such facility.
+ *
+ * @param array $params Payment Gateway Module Parameters
+ *
+ * @see https://developers.whmcs.com/payment-gateways/remote-input-gateway/
+ *
+ * @return array
+ */
+function xendit_remoteupdate($params)
+{
+    if(strpos($_REQUEST["rp"], "/admin/") !== FALSE){
+        return <<<HTML
+<div class="alert alert-info text-center">
+    Updating your card/bank is not possible. Please create a new Pay Method to make changes.
+</div>
+HTML;
+    }
+}
+
+/**
+ * Admin status message.
+ *
+ * Called when an invoice is viewed in the admin area.
+ *
+ * @param array $params Payment Gateway Module Parameters.
+ *
+ * @return array
+ */
+function xendit_adminstatusmsg($params)
+{
+}
diff --git a/modules/gateways/xendit/composer.json b/modules/gateways/xendit/composer.json
new file mode 100644
index 0000000..c4aba68
--- /dev/null
+++ b/modules/gateways/xendit/composer.json
@@ -0,0 +1,15 @@
+{
+    "name": "xendit/xendit-whmcs",
+    "description": "Xendit Payment Gateway for WHMCS",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "TPI",
+            "email": "thirdpartyintegrations@xendit.co"
+        }
+    ],
+    "homepage": "https://xendit.co",
+    "require-dev": {
+    	"phpunit/phpunit": "@stable"
+    }
+}
diff --git a/modules/gateways/xendit/logo.png b/modules/gateways/xendit/logo.png
new file mode 100644
index 0000000..0023367
Binary files /dev/null and b/modules/gateways/xendit/logo.png differ
diff --git a/modules/gateways/xendit/phpunit.xml.dist b/modules/gateways/xendit/phpunit.xml.dist
new file mode 100644
index 0000000..5575376
--- /dev/null
+++ b/modules/gateways/xendit/phpunit.xml.dist
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" bootstrap="tests/_bootstrap.php">
+  <coverage/>
+  <testsuites>
+    <testsuite name="WHMCS Xendit Payment Gateway Tests">
+      <directory suffix=".php">tests/*</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>
diff --git a/modules/gateways/xendit/whmcs.json b/modules/gateways/xendit/whmcs.json
new file mode 100644
index 0000000..f37f6c3
--- /dev/null
+++ b/modules/gateways/xendit/whmcs.json
@@ -0,0 +1,20 @@
+{
+  "schema": "1.0",
+  "type": "whmcs-gateways",
+  "name": "xendit",
+  "license": "MIT",
+  "category": "payments",
+  "description": {
+    "name": "Xendit",
+    "tagline": "Xendit Payment Gateway for WHMCS"
+  },
+  "logo": {
+    "filename": "logo.png"
+  },
+  "authors": [
+    {
+      "name": "TPI",
+      "homepage": "https:\/\/xendit.co\/"
+    }
+  ]
+}