diff --git a/database/migrations/2025_10_28_130002_add_created_at_index_to_process_request_tokens.php b/database/migrations/2025_10_28_130002_add_created_at_index_to_process_request_tokens.php
new file mode 100644
index 0000000000..e58652f7bd
--- /dev/null
+++ b/database/migrations/2025_10_28_130002_add_created_at_index_to_process_request_tokens.php
@@ -0,0 +1,26 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        // Create descending index on created_at for optimized queries
+        DB::statement('CREATE INDEX idx_process_request_tokens_created_at_desc ON process_request_tokens (created_at DESC)');
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('process_request_tokens', function (Blueprint $table) {
+            $table->dropIndex('idx_process_request_tokens_created_at_desc');
+        });
+    }
+};