diff --git a/src/Controllers/ApiController.php b/src/Controllers/ApiController.php
index 0cb507d..8bbecdd 100755
--- a/src/Controllers/ApiController.php
+++ b/src/Controllers/ApiController.php
@@ -300,7 +300,16 @@ class ApiController
 
     public function pushMetrics(): void
     {
-        $input = json_decode(file_get_contents('php://input'), true);
+        $rawBody = file_get_contents('php://input');
+        $input = json_decode($rawBody, true);
+
+        $logger = \ServerManager\Core\Logger::getInstance();
+        $logger->warning('Push metrics received', [
+            'input_keys' => $input ? array_keys($input) : [],
+            'has_agent_key' => !empty($input['agent_key']),
+            'agent_key_prefix' => isset($input['agent_key']) ? substr((string)$input['agent_key'], 0, 8) . '...' : 'none',
+            'raw_body_prefix' => substr($rawBody, 0, 200),
+        ]);
 
         if (!$input || empty($input['agent_key'])) {
             $this->view->json(['error' => 'agent_key is required'], 401);