diff --git a/src/Plugin/DebugDataItem/SearchApiIndex.php b/src/Plugin/DebugDataItem/SearchApiIndex.php
new file mode 100644
index 00000000..9d297b9e
--- /dev/null
+++ b/src/Plugin/DebugDataItem/SearchApiIndex.php
@@ -0,0 +1,131 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\helfi_api_base\Plugin\DebugDataItem;
+
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\helfi_api_base\DebugDataItemPluginBase;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Plugin implementation of the debug_data_item.
+ *
+ * @DebugDataItem(
+ *   id = "helfi_search_api_index",
+ *   label = @Translation("SearchApi index"),
+ *   description = @Translation("SearchApi index")
+ * )
+ */
+class SearchApiIndex extends DebugDataItemPluginBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The entity type manager.
+   *
+   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
+   */
+  protected EntityTypeManagerInterface $entityTypeManager;
+
+  /**
+   * The cluster manager.
+   *
+   * @var null
+   */
+  protected $clusterManager = NULL;
+
+  /**
+   * The client manager.
+   *
+   * @var null
+   */
+  protected $clientManager = NULL;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    $instance = new static($configuration, $plugin_id, $plugin_definition);
+    $instance->entityTypeManager = $container->get('entity_type.manager');
+    if (
+      $container->has('elasticsearch_connector.cluster_manager') &&
+      $container->has('elasticsearch_connector.client_manager')
+    ) {
+      $instance->clusterManager = $container->get('elasticsearch_connector.cluster_manager');
+      $instance->clientManager = $container->get('elasticsearch_connector.client_manager');
+    }
+    return $instance;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function collect(): array {
+    $data = ['indexes' => []];
+
+    if (
+      !property_exists($this, 'clusterManager') ||
+      !property_exists($this, 'clientManager')
+    ) {
+      return $data;
+    }
+
+    try {
+      $indexes = $this->entityTypeManager
+        ->getStorage('search_api_index')
+        ->loadMultiple();
+
+      $clusters = $this->clusterManager->loadAllClusters(FALSE);
+      $cluster = reset($clusters);
+    }
+    catch (\Exception $e) {
+      return $data;
+    }
+
+    if ($indexes) {
+      /** @var \Drupal\search_api\IndexInterface $index */
+      foreach ($indexes as $index) {
+        $tracker = $index->getTrackerInstance();
+
+        $result = $this->resolveResult(
+          $tracker->getIndexedItemsCount(),
+          $tracker->getTotalItemsCount()
+        );
+
+        $client = $this->clientManager->getClientForCluster($cluster);
+        $cluster_status = $client->getClusterInfo()['health']['status'] ?? FALSE;
+
+        $data['indexes'][] = [
+          $index->getOriginalId() => $result,
+          'cluster_status' => $cluster_status,
+        ];
+      }
+    }
+
+    return $data;
+  }
+
+  /**
+   * Resolve return value based on index status.
+   *
+   * @param int $indexed
+   *   Amount of up-to-date items in index.
+   * @param int $total
+   *   Maximum amount of items in index.
+   *
+   * @return string
+   *   Status.
+   */
+  private function resolveResult(int $indexed, int $total): string {
+    if ($indexed == 0 || $total == 0) {
+      return 'indexing or index rebuild required';
+    }
+
+    if ($indexed === $total) {
+      return 'Index up to date';
+    }
+
+    return "$indexed/$total";
+  }
+
+}