diff --git a/README.md b/README.md
index 6300d09..fa5de50 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,8 @@ echo "Fetched: " . $fetched->getOriginal()->getUrl() . PHP_EOL;
 
 ## 🚀 Usage
 
+This SDK make use of [public API](https://hamrocdn.com/docs/api) provided by HamroCDN. To get your API key, sign up at [hamrocdn.com](https://hamrocdn.com/dashboard) and navigate to *Edit Profile* page in your dashboard.
+
 ### 1. List Uploads
 
 #### 1.1 Paginated
@@ -129,6 +131,14 @@ $upload = $cdn->upload('/path/to/image.png');
 echo $upload->getNanoId(); // nano ID of the uploaded file
 ```
 
+> To delete the file after a certain time, use the `deleteAfter` parameter (in seconds):
+
+```php
+$upload = $cdn->upload('/path/to/image.png', deleteAfter: 3600); // Deletes after 1 hour
+```
+
+> This will set the `deleteAt` property on the returned `Upload` model.
+
 ---
 
 ### 4. Upload by Remote URL
@@ -139,6 +149,8 @@ $upload = $cdn->uploadByURL('https://example.com/image.png');
 echo $upload->getOriginal()->getUrl();
 ```
 
+> Also supports the `deleteAfter` parameter.
+
 ---
 
 ## 🧱 Models
@@ -149,13 +161,13 @@ echo $upload->getOriginal()->getUrl();
 |------------|--------------------|--------------------------------------|
 | `nanoId`   | `string`           | Unique identifier of the upload      |
 | `user`     | `User` or `null`   | Owner of the file (if authenticated) |
-| `deleteAt` | `string` or `null` | Deletion timestamp if temporary      |
+| `deleteAt` | `Carbon` or `null` | Deletion timestamp if temporary      |
 | `original` | `File`             | File information (URL, size)         |
 
 #### Methods
 - `getNanoId()`: `string`
 - `getUser()`: `?User`
-- `getDeleteAt()`: `?string`
+- `getDeleteAt()`: `?Carbon`
 - `getOriginal()`: `File`
 - `toArray()`: `array`
 
diff --git a/src/Contracts/HamroCDNContract.php b/src/Contracts/HamroCDNContract.php
index 2dc7904..b29eaf9 100644
--- a/src/Contracts/HamroCDNContract.php
+++ b/src/Contracts/HamroCDNContract.php
@@ -45,10 +45,10 @@ public function fetch(string $nanoId): Upload;
     /**
      * Upload a file to HamroCDN.
      */
-    public function upload(string $filePath): Upload;
+    public function upload(string $filePath, ?int $deleteAfter): Upload;
 
     /**
      * Upload a file to HamroCDN by URL.
      */
-    public function uploadByURL(string $url): Upload;
+    public function uploadByURL(string $url, ?int $deleteAfter = null): Upload;
 }
diff --git a/src/HamroCDN.php b/src/HamroCDN.php
index 1f2ba29..d2bfafc 100644
--- a/src/HamroCDN.php
+++ b/src/HamroCDN.php
@@ -101,20 +101,28 @@ public function fetch(string $nanoId): Upload
     /**
      * @throws HamroCDNException
      */
-    public function upload(string $filePath): Upload
+    public function upload(string $filePath, ?int $deleteAfter = null): Upload
     {
         if (! file_exists($filePath)) {
             throw HamroCDNException::fileError($filePath);
         }
 
         $response = $this->post('uploads', [
-            'multipart' => [
+            'multipart' => array_merge(
                 [
-                    'name' => 'file',
-                    'contents' => fopen($filePath, 'r'),
-                    'filename' => basename($filePath),
+                    [
+                        'name' => 'file',
+                        'contents' => fopen($filePath, 'r'),
+                        'filename' => basename($filePath),
+                    ],
                 ],
-            ],
+                $deleteAfter !== null ? [
+                    [
+                        'name' => 'delete_after',
+                        'contents' => (string) $deleteAfter,
+                    ],
+                ] : []
+            ),
         ]);
 
         return Upload::fromArray($response['data']);
@@ -123,11 +131,12 @@ public function upload(string $filePath): Upload
     /**
      * @throws HamroCDNException
      */
-    public function uploadByURL(string $url): Upload
+    public function uploadByURL(string $url, ?int $deleteAfter = null): Upload
     {
         $response = $this->post('upload-from-url', [
             'json' => [
                 'url' => $url,
+                'delete_after' => $deleteAfter,
             ],
         ]);
 
diff --git a/tests/UploadTest.php b/tests/UploadTest.php
index fe05ae3..ba5c69c 100644
--- a/tests/UploadTest.php
+++ b/tests/UploadTest.php
@@ -4,6 +4,7 @@
 
 use HamroCDN\Exceptions\HamroCDNException;
 use HamroCDN\HamroCDN;
+use HamroCDN\Models\File;
 use HamroCDN\Models\Upload;
 use HamroCDN\Models\User;
 
@@ -12,15 +13,14 @@
     $upload = $this->value;
 
     expect($upload)
-        ->toBeInstanceOf(Upload::class);
-
-    expect($upload)
+        ->toBeInstanceOf(Upload::class)
         ->toHaveKey('nanoId')
         ->toHaveKey('user')
         ->toHaveKey('delete_at')
         ->toHaveKey('original');
 
     expect($upload->getOriginal())
+        ->toBeInstanceOf(File::class)
         ->toHaveKey('url')
         ->toHaveKey('size');
 
@@ -87,33 +87,72 @@
     });
 });
 
-it('uploads a file and returns a HamroCDN object', function () {
-    $client = new HamroCDN('test-api-key', 'https://hamrocdn.com/api');
+describe('uploads a file and returns a HamroCDN object', function () {
+    test('without delete_after', function () {
+        $client = new HamroCDN('test-api-key', 'https://hamrocdn.com/api');
+
+        $filePath = __DIR__.'/test.png';
+        $upload = $client->upload($filePath);
 
-    $filePath = __DIR__.'/test.png';
-    $upload = $client->upload($filePath);
+        expect($upload)->toBeUploadObject();
 
-    expect($upload)->toBeUploadObject();
+        $fetchedUpload = $client->fetch($upload->getNanoId());
+
+        expect($fetchedUpload)
+            ->toBeUploadObject();
+
+        expect($fetchedUpload->getNanoId())->toBe($upload->getNanoId());
+    });
+
+    test('with delete_after', function () {
+        $client = new HamroCDN('test-api-key', 'https://hamrocdn.com/api');
+
+        $filePath = __DIR__.'/test.png';
+        $deleteAfter = 100;
+        $upload = $client->upload($filePath, $deleteAfter);
 
-    $fetchedUpload = $client->fetch($upload->getNanoId());
+        expect($upload)->toBeUploadObject();
+        expect($upload->getDeleteAt())->not->toBeNull();
 
-    expect($fetchedUpload)
-        ->toBeUploadObject();
+        $fetchedUpload = $client->fetch($upload->getNanoId());
 
-    expect($fetchedUpload->getNanoId())->toBe($upload->getNanoId());
+        expect($fetchedUpload)
+            ->toBeUploadObject();
+        expect($fetchedUpload->getNanoId())->toBe($upload->getNanoId());
+        expect($fetchedUpload->getDeleteAt())->not->toBeNull();
+    });
 });
 
-it('uploads a file by URL and returns a HamroCDN object', function () {
-    $client = new HamroCDN('test-api-key', 'https://hamrocdn.com/api');
+describe('uploads a file by URL and returns a HamroCDN object', function () {
+    test('without delete_after', function () {
+        $client = new HamroCDN('test-api-key', 'https://hamrocdn.com/api');
+
+        $fileUrl = 'https://placehold.co/1000x1000/000000/FFFFFF?text=HamroCDN';
 
-    $fileUrl = 'https://placehold.co/1000x1000/000000/FFFFFF?text=HamroCDN';
+        $upload = $client->uploadByURL($fileUrl);
+        expect($upload)->toBeUploadObject();
 
-    $upload = $client->uploadByURL($fileUrl);
-    expect($upload)->toBeUploadObject();
+        $fetchedUpload = $client->fetch($upload->getNanoId());
+        expect($fetchedUpload)
+            ->toBeUploadObject();
+    });
 
-    $fetchedUpload = $client->fetch($upload->getNanoId());
-    expect($fetchedUpload)
-        ->toBeUploadObject();
+    test('with delete_after', function () {
+        $client = new HamroCDN('test-api-key', 'https://hamrocdn.com/api');
+
+        $fileUrl = 'https://placehold.co/1000x1000/000000/FFFFFF?text=HamroCDN';
+        $deleteAfter = 100;
+
+        $upload = $client->uploadByURL($fileUrl, $deleteAfter);
+
+        expect($upload)->toBeUploadObject();
+        expect($upload->getDeleteAt())->not->toBeNull();
+
+        $fetchedUpload = $client->fetch($upload->getNanoId());
+        expect($fetchedUpload)
+            ->toBeUploadObject();
+        expect($fetchedUpload->getDeleteAt())->not->toBeNull();
+    });
 });
 
 describe('exception', function () {