diff --git a/modules/helfi_react_search/helfi_react_search.module b/modules/helfi_react_search/helfi_react_search.module
index 1d5df6ca1..2079621f7 100644
--- a/modules/helfi_react_search/helfi_react_search.module
+++ b/modules/helfi_react_search/helfi_react_search.module
@@ -37,3 +37,19 @@ function helfi_react_search_preprocess_paragraph(array &$variables) : void {
     $variables['#attached']['drupalSettings']['helfi_react_search']['elastic_proxy_url'] = $proxyUrl;
   }
 }
+
+/**
+ * Implements hook_theme().
+ */
+function helfi_react_search_theme() : array {
+  return [
+    'debug_item__search_api' => [
+      'variables' => [
+        'id' => NULL,
+        'label' => NULL,
+        'data' => [],
+      ],
+      'template' => 'debug-item--search-api',
+    ],
+  ];
+}
diff --git a/modules/helfi_react_search/src/Plugin/DebugDataItem/SearchApiIndex.php b/modules/helfi_react_search/src/Plugin/DebugDataItem/SearchApiIndex.php
new file mode 100644
index 000000000..b6ff0ea9d
--- /dev/null
+++ b/modules/helfi_react_search/src/Plugin/DebugDataItem/SearchApiIndex.php
@@ -0,0 +1,106 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\helfi_react_search\Plugin\DebugDataItem;
+
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\helfi_api_base\DebugDataItemPluginBase;
+use Drupal\search_api\SearchApiException;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Plugin implementation of the debug_data_item.
+ *
+ * @DebugDataItem(
+ *   id = "search_api",
+ *   label = @Translation("SearchApi index"),
+ *   description = @Translation("SearchApi index")
+ * )
+ */
+final class SearchApiIndex extends DebugDataItemPluginBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The entity type manager.
+   *
+   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
+   */
+  private EntityTypeManagerInterface $entityTypeManager;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) : self {
+    $instance = new self($configuration, $plugin_id, $plugin_definition);
+    $instance->entityTypeManager = $container->get('entity_type.manager');
+
+    return $instance;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function collect(): array {
+    $data = [];
+
+    if (!$this->entityTypeManager->hasDefinition('search_api_index')) {
+      return [];
+    }
+    $indexes = $this->entityTypeManager
+      ->getStorage('search_api_index')
+      ->loadMultiple();
+
+    if (!$indexes) {
+      return [];
+    }
+    /** @var \Drupal\search_api\IndexInterface $index */
+    foreach ($indexes as $index) {
+      $result = $status = NULL;
+
+      try {
+        $status = $index->getServerInstance()?->isAvailable();
+        $tracker = $index->getTrackerInstance();
+
+        $result = $this->resolveResult(
+          $tracker->getIndexedItemsCount(),
+          $tracker->getTotalItemsCount()
+        );
+
+      }
+      catch (SearchApiException) {
+      }
+      $data[] = [
+        'id' => $index->getOriginalId(),
+        'result' => $result,
+        'status' => $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 number 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";
+  }
+
+}
diff --git a/modules/helfi_react_search/templates/debug-item--search-api.html.twig b/modules/helfi_react_search/templates/debug-item--search-api.html.twig
new file mode 100644
index 000000000..d3fa9fccf
--- /dev/null
+++ b/modules/helfi_react_search/templates/debug-item--search-api.html.twig
@@ -0,0 +1,45 @@
+{#
+/**
+ * To actually show any data from a custom plugin, you *MUST* override this template
+ * with a template called 'debug-item--{{ id }}.html.twig'.
+ *
+ * For example: debug-item--composer.html.twig, where 'composer' is your plugin's ID.
+ *
+ * You can then loop your data with something like this:
+ * {% for item in data.packages %}
+ *    {{ item.name }}
+ *    {{ item.version }}
+ * {% endfor %}
+ *
+ *  Available variables:
+ *  - id: The ID of your plugin
+ *  - label The label of your plugin
+ *  - data:  An array of data returned by your plugin's collect() method.
+ */
+#}
+
+<h2>{{ 'Search API indexes'|t }}</h2>
+<table style="width:auto;" aria-label="{{ 'Search API indexes'|t }}">
+  <thead>
+  <tr>
+    <th>Index</th>
+    <th>Status</th>
+    <th>Result</th>
+  </tr>
+  </thead>
+  <tbody>
+  {% for value in data %}
+    <tr>
+      <td>
+        {{ value.id }}
+      </td>
+      <td>
+        {{ value.status ? 'Online'|t : 'Offline'|t }}
+      </td>
+      <td>
+        {{ value.result }}
+      </td>
+    </tr>
+  {% endfor %}
+  </tbody>
+</table>
diff --git a/modules/helfi_react_search/tests/src/Unit/SearchApiIndexItemTest.php b/modules/helfi_react_search/tests/src/Unit/SearchApiIndexItemTest.php
new file mode 100644
index 000000000..3db830ffa
--- /dev/null
+++ b/modules/helfi_react_search/tests/src/Unit/SearchApiIndexItemTest.php
@@ -0,0 +1,139 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace Drupal\Tests\helfi_react_search\Unit;
+
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\helfi_react_search\Plugin\DebugDataItem\SearchApiIndex;
+use Drupal\search_api\Entity\SearchApiConfigEntityStorage;
+use Drupal\search_api\IndexInterface;
+use Drupal\search_api\SearchApiException;
+use Drupal\search_api\ServerInterface;
+use Drupal\search_api\Tracker\TrackerInterface;
+use Drupal\Tests\UnitTestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
+
+/**
+ * Tests Search api index plugin.
+ *
+ * @coversDefaultClass \Drupal\helfi_react_search\Plugin\DebugDataItem\SearchApiIndex
+ * @group helfi_api_base
+ */
+class SearchApiIndexItemTest extends UnitTestCase {
+
+  use ProphecyTrait;
+
+  /**
+   * @covers ::create
+   * @covers ::collect
+   */
+  public function testNoSearchApiStorage() : void {
+    $entityTypeManager = $this->prophesize(EntityTypeManagerInterface::class);
+    $entityTypeManager->hasDefinition('search_api_index')->willReturn(FALSE);
+    $container = new ContainerBuilder();
+    $container->set('entity_type.manager', $entityTypeManager->reveal());
+    $sut = SearchApiIndex::create($container, [], '', []);
+    $this->assertEmpty($sut->collect());
+  }
+
+  /**
+   * @covers ::create
+   * @covers ::collect
+   */
+  public function testNoIndex() : void {
+    $indexStorage = $this->prophesize(SearchApiConfigEntityStorage::class);
+    $indexStorage->loadMultiple()->willReturn([]);
+    $entityTypeManager = $this->prophesize(EntityTypeManagerInterface::class);
+    $entityTypeManager->hasDefinition('search_api_index')
+      ->willReturn(TRUE);
+    $entityTypeManager->getStorage('search_api_index')
+      ->willReturn($indexStorage->reveal());
+    $container = new ContainerBuilder();
+    $container->set('entity_type.manager', $entityTypeManager->reveal());
+
+    $sut = SearchApiIndex::create($container, [], '', []);
+    $this->assertEmpty($sut->collect());
+  }
+
+  /**
+   * @covers ::create
+   * @covers ::collect
+   * @covers ::resolveResult
+   */
+  public function testCollect() : void {
+    $index1 = $this->prophesize(IndexInterface::class);
+    $index1->getOriginalId()->willReturn('index1');
+    $index1->getServerInstance()->willThrow(new SearchApiException());
+
+    $server = $this->prophesize(ServerInterface::class);
+    $server->isAvailable()->willReturn(TRUE);
+
+    $tracker2 = $this->prophesize(TrackerInterface::class);
+    $tracker2->getIndexedItemsCount()->willReturn(0);
+    $tracker2->getTotalItemsCount()->willReturn(0);
+
+    $index2 = $this->prophesize(IndexInterface::class);
+    $index2->getOriginalId()->willReturn('index2');
+    $index2->getServerInstance()->willReturn($server->reveal());
+    $index2->getTrackerInstance()->willReturn($tracker2->reveal());
+
+    $tracker3 = $this->prophesize(TrackerInterface::class);
+    $tracker3->getIndexedItemsCount()->willReturn(20);
+    $tracker3->getTotalItemsCount()->willReturn(20);
+
+    $index3 = $this->prophesize(IndexInterface::class);
+    $index3->getOriginalId()->willReturn('index3');
+    $index3->getServerInstance()->willReturn($server->reveal());
+    $index3->getTrackerInstance()->willReturn($tracker3->reveal());
+
+    $tracker4 = $this->prophesize(TrackerInterface::class);
+    $tracker4->getIndexedItemsCount()->willReturn(10);
+    $tracker4->getTotalItemsCount()->willReturn(20);
+    $index4 = $this->prophesize(IndexInterface::class);
+    $index4->getOriginalId()->willReturn('index4');
+    $index4->getServerInstance()->willReturn($server->reveal());
+    $index4->getTrackerInstance()->willReturn($tracker4->reveal());
+
+    $indexStorage = $this->prophesize(SearchApiConfigEntityStorage::class);
+    $indexStorage->loadMultiple()->willReturn([
+      $index1->reveal(),
+      $index2->reveal(),
+      $index3->reveal(),
+      $index4->reveal(),
+    ]);
+    $entityTypeManager = $this->prophesize(EntityTypeManagerInterface::class);
+    $entityTypeManager->getStorage('search_api_index')
+      ->willReturn($indexStorage->reveal());
+    $entityTypeManager->hasDefinition('search_api_index')
+      ->willReturn(TRUE);
+    $container = new ContainerBuilder();
+    $container->set('entity_type.manager', $entityTypeManager->reveal());
+
+    $sut = SearchApiIndex::create($container, [], '', []);
+    $this->assertEquals([
+      [
+        'id' => 'index1',
+        'result' => NULL,
+        'status' => NULL,
+      ],
+      [
+        'id' => 'index2',
+        'result' => 'indexing or index rebuild required',
+        'status' => TRUE,
+      ],
+      [
+        'id' => 'index3',
+        'result' => 'Index up to date',
+        'status' => TRUE,
+      ],
+      [
+        'id' => 'index4',
+        'result' => '10/20',
+        'status' => TRUE,
+      ],
+    ], $sut->collect());
+  }
+
+}