A lot of things.

app/Services/XenforoApiService.php

@@ -48,6 +48,19 @@ class XenforoApiService {
         return $response->json();
     }
 
+    private function delete(string $endpoint, ?int $customUserId = null, array $data = [] ): mixed
+    {
+        $response = Http::withHeaders([
+            'XF-Api-Key' => $this->apiKey,
+            'XF-Api-User' => $customUserId ?? $this->superUserId,
+        ])->delete("{$this->apiUrl}/{$endpoint}", $data);
+
+        if( !$response->ok() )
+            return null;
+
+        return $response->json();
+    }
+
     public function getUserAlerts(int $userId): mixed
     {
         if( app(XenforoService::class)->getXfUser($userId)?->alerts_unviewed > 0 ) {
@@ -121,4 +134,14 @@ class XenforoApiService {
         return $response['success'] ?? false;
     }
 
+    public function deleteThreadWithEntry(int $threadId): bool
+    {
+        return (bool) $this->delete( "threads/{$threadId}", data: ['reason' => "Deletion with entry." ] );
+    }
+
+    public function restoreThreadWithEntry(int $threadId): bool
+    {
+        return (bool) $this->post("threads/{$threadId}/undelete" );
+    }
+
 }