diff --git a/x-pack/platform/packages/shared/index-management/index_management_shared_types/moon.yml b/x-pack/platform/packages/shared/index-management/index_management_shared_types/moon.yml
index e1121b2f19bdd..9849668c334ad 100644
--- a/x-pack/platform/packages/shared/index-management/index_management_shared_types/moon.yml
+++ b/x-pack/platform/packages/shared/index-management/index_management_shared_types/moon.yml
@@ -22,6 +22,7 @@ dependsOn:
   - '@kbn/utility-types'
   - '@kbn/share-plugin'
   - '@kbn/management-plugin'
+  - '@kbn/core'
 tags:
   - shared-common
   - package
diff --git a/x-pack/platform/packages/shared/index-management/index_management_shared_types/src/types.ts b/x-pack/platform/packages/shared/index-management/index_management_shared_types/src/types.ts
index ab1d0b3e410b8..8224ad7985aed 100644
--- a/x-pack/platform/packages/shared/index-management/index_management_shared_types/src/types.ts
+++ b/x-pack/platform/packages/shared/index-management/index_management_shared_types/src/types.ts
@@ -15,9 +15,24 @@ import type { ScopedHistory } from '@kbn/core-application-browser';
 import type { SerializableRecord } from '@kbn/utility-types';
 import type { LocatorPublic } from '@kbn/share-plugin/public';
 import type { ManagementAppMountParams } from '@kbn/management-plugin/public';
+import type { HttpSetup } from '@kbn/core/public';
 import type { ExtensionsSetup } from './services/extensions_service';
 import type { PublicApiServiceSetup } from './services/public_api_service';
 
+export interface EnricherResponse {
+  source: string;
+  indices?: Index[];
+  error?: boolean;
+  /**
+   * Apply this enricher's updates to any index aliases
+   */
+  applyToAliases?: boolean;
+}
+export interface Enricher {
+  name: string;
+  fn: (client: HttpSetup, signal: AbortSignal) => Promise<EnricherResponse>;
+}
+
 export type IndexManagementLocatorParams = SerializableRecord &
   (
     | {
@@ -82,6 +97,9 @@ export interface IndexManagementPluginSetup {
   extensionsService: ExtensionsSetup;
   renderIndexManagementApp: (params: IndexManagementAppMountParams) => Promise<() => void>;
   locator?: IndexManagementLocator;
+  indexDataEnricher: {
+    add: (enricher: Enricher) => void;
+  };
 }
 
 export interface IndexManagementPluginStart {
@@ -104,13 +122,15 @@ export interface IndexManagementPluginStart {
   }) => React.FC<DatastreamFlyoutProps>;
 }
 
-export interface Index {
+export interface Index extends IndexAttributes {
   name: string;
+}
+export interface IndexAttributes {
   primary?: number | string;
   replica?: number | string;
-  isFrozen: boolean;
-  hidden: boolean;
-  aliases: string | string[];
+  isFrozen?: boolean;
+  hidden?: boolean;
+  aliases?: string | string[];
   data_stream?: string;
   mode?: string;
 
@@ -125,8 +145,8 @@ export interface Index {
   status?: IndicesStatsIndexMetadataState;
   uuid?: Uuid;
   documents?: number;
-  size?: string;
-  primary_size?: string;
+  size?: number;
+  primary_size?: number;
   documents_deleted?: number;
 }
 
diff --git a/x-pack/platform/packages/shared/index-management/index_management_shared_types/tsconfig.json b/x-pack/platform/packages/shared/index-management/index_management_shared_types/tsconfig.json
index 2f15478bd5975..67cfda437d90f 100644
--- a/x-pack/platform/packages/shared/index-management/index_management_shared_types/tsconfig.json
+++ b/x-pack/platform/packages/shared/index-management/index_management_shared_types/tsconfig.json
@@ -19,6 +19,7 @@
     "@kbn/core-application-browser",
     "@kbn/utility-types",
     "@kbn/share-plugin",
-    "@kbn/management-plugin"
+    "@kbn/management-plugin",
+    "@kbn/core"
   ]
 }
diff --git a/x-pack/platform/plugins/private/cross_cluster_replication/moon.yml b/x-pack/platform/plugins/private/cross_cluster_replication/moon.yml
index 62863a1f0ac41..8b23fd70580c2 100644
--- a/x-pack/platform/plugins/private/cross_cluster_replication/moon.yml
+++ b/x-pack/platform/plugins/private/cross_cluster_replication/moon.yml
@@ -38,6 +38,7 @@ dependsOn:
   - '@kbn/react-kibana-context-render'
   - '@kbn/licensing-types'
   - '@kbn/data-views-plugin'
+  - '@kbn/index-management-shared-types'
 tags:
   - plugin
   - prod
diff --git a/x-pack/platform/plugins/private/cross_cluster_replication/public/ccr_data_enricher.ts b/x-pack/platform/plugins/private/cross_cluster_replication/public/ccr_data_enricher.ts
new file mode 100644
index 0000000000000..b79f1c88af8e0
--- /dev/null
+++ b/x-pack/platform/plugins/private/cross_cluster_replication/public/ccr_data_enricher.ts
@@ -0,0 +1,30 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { HttpSetup } from '@kbn/core/public';
+import type { CcrFollowInfoResponse } from '@elastic/elasticsearch/lib/api/types';
+import type { EnricherResponse } from '@kbn/index-management-shared-types';
+import { i18n } from '@kbn/i18n';
+const SOURCE = i18n.translate('xpack.crossClusterReplication.ccrDataEnricher.source', {
+  defaultMessage: 'cross cluster replication',
+});
+
+export const ccrDataEnricher = {
+  name: SOURCE,
+  fn: async (client: HttpSetup, signal: AbortSignal): Promise<EnricherResponse> =>
+    client
+      .get<CcrFollowInfoResponse>('/api/cross_cluster_replication/follower_info', { signal })
+      .then((response) => {
+        return {
+          indices: response.follower_indices.map((followerIndex) => ({
+            name: followerIndex.follower_index,
+            isFollowerIndex: true,
+          })),
+          source: SOURCE,
+        };
+      }),
+};
diff --git a/x-pack/platform/plugins/private/cross_cluster_replication/public/plugin.ts b/x-pack/platform/plugins/private/cross_cluster_replication/public/plugin.ts
index ad62564f24505..35d0115727def 100644
--- a/x-pack/platform/plugins/private/cross_cluster_replication/public/plugin.ts
+++ b/x-pack/platform/plugins/private/cross_cluster_replication/public/plugin.ts
@@ -14,8 +14,8 @@ import { PLUGIN, MANAGEMENT_ID } from '../common/constants';
 import { init as initUiMetric } from './app/services/track_ui_metric';
 import { init as initNotification } from './app/services/notifications';
 import type { PluginDependencies, ClientConfigType } from './types';
+import { ccrDataEnricher } from './ccr_data_enricher';
 
-// @ts-ignore;
 import { setHttpClient } from './app/services/api';
 
 export class CrossClusterReplicationPlugin implements Plugin {
@@ -105,6 +105,7 @@ export class CrossClusterReplicationPlugin implements Plugin {
             };
 
             indexManagement.extensionsService.addBadge(followerBadgeExtension);
+            indexManagement.indexDataEnricher.add(ccrDataEnricher);
           }
         } else {
           ccrApp.disable();
diff --git a/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/index.ts b/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/index.ts
index 62965856b617b..79230b1053c0b 100644
--- a/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/index.ts
+++ b/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/index.ts
@@ -13,6 +13,7 @@ import { registerPauseRoute } from './register_pause_route';
 import { registerResumeRoute } from './register_resume_route';
 import { registerUnfollowRoute } from './register_unfollow_route';
 import { registerUpdateRoute } from './register_update_route';
+import { registerGetFollowerInfoRoute } from './register_get_follower_info';
 
 export function registerFollowerIndexRoutes(dependencies: RouteDependencies) {
   registerCreateRoute(dependencies);
@@ -22,4 +23,5 @@ export function registerFollowerIndexRoutes(dependencies: RouteDependencies) {
   registerResumeRoute(dependencies);
   registerUnfollowRoute(dependencies);
   registerUpdateRoute(dependencies);
+  registerGetFollowerInfoRoute(dependencies);
 }
diff --git a/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/register_get_follower_info.ts b/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/register_get_follower_info.ts
new file mode 100644
index 0000000000000..e182e3d13b24a
--- /dev/null
+++ b/x-pack/platform/plugins/private/cross_cluster_replication/server/routes/api/follower_index/register_get_follower_info.ts
@@ -0,0 +1,43 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { addBasePath } from '../../../services';
+import type { RouteDependencies } from '../../../types';
+
+export const registerGetFollowerInfoRoute = ({
+  router,
+  license,
+  lib: { handleEsError },
+}: RouteDependencies) => {
+  router.get(
+    {
+      path: addBasePath('/follower_info'),
+      security: {
+        authz: {
+          enabled: false,
+          reason: 'Relies on es client for authorization',
+        },
+      },
+      validate: {},
+    },
+    license.guardApiRoute(async (context, request, response) => {
+      const { client } = (await context.core).elasticsearch;
+
+      try {
+        const body = await client.asCurrentUser.ccr.followInfo({
+          index: '_all',
+        });
+
+        return response.ok({
+          body,
+        });
+      } catch (error) {
+        return handleEsError({ error, response });
+      }
+    })
+  );
+};
diff --git a/x-pack/platform/plugins/private/cross_cluster_replication/tsconfig.json b/x-pack/platform/plugins/private/cross_cluster_replication/tsconfig.json
index b0dad4e18cf09..383c6df2a9f6f 100644
--- a/x-pack/platform/plugins/private/cross_cluster_replication/tsconfig.json
+++ b/x-pack/platform/plugins/private/cross_cluster_replication/tsconfig.json
@@ -32,6 +32,7 @@
     "@kbn/react-kibana-context-render",
     "@kbn/licensing-types",
     "@kbn/data-views-plugin",
+    "@kbn/index-management-shared-types",
   ],
   "exclude": [
     "target/**/*",
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/__jest__/extend_index_management.test.tsx b/x-pack/platform/plugins/private/index_lifecycle_management/__jest__/extend_index_management.test.tsx
index 633b66a53bcb0..932f35198b7d8 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/__jest__/extend_index_management.test.tsx
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/__jest__/extend_index_management.test.tsx
@@ -12,7 +12,7 @@ import { useEuiTheme } from '@elastic/eui';
 import { screen, waitFor } from '@testing-library/react';
 import { renderWithI18n } from '@kbn/test-jest-helpers';
 import { usageCollectionPluginMock } from '@kbn/usage-collection-plugin/public/mocks';
-import type { Index } from '@kbn/index-management-plugin/common';
+import type { Index } from '../common/types';
 
 import { init } from '../integration_tests/helpers/http_requests';
 import {
@@ -66,8 +66,8 @@ const indexWithoutLifecyclePolicy: Index = {
   replica: 1,
   documents: 1,
   documents_deleted: 0,
-  size: '3.4kb',
-  primary_size: '3.4kb',
+  size: 3480,
+  primary_size: 3480,
   aliases: 'none',
   isFrozen: false,
   hidden: false,
@@ -86,8 +86,8 @@ const indexWithLifecyclePolicy: Index = {
   replica: 1,
   documents: 2,
   documents_deleted: 0,
-  size: '6.5kb',
-  primary_size: '6.5kb',
+  size: 6656,
+  primary_size: 6656,
   aliases: 'none',
   isFrozen: false,
   hidden: false,
@@ -115,8 +115,8 @@ const indexWithLifecycleError: Index = {
   replica: 1,
   documents: 2,
   documents_deleted: 0,
-  size: '6.5kb',
-  primary_size: '6.5kb',
+  size: 6656,
+  primary_size: 6656,
   aliases: 'none',
   isFrozen: false,
   hidden: false,
@@ -148,8 +148,8 @@ const indexWithLifecyclePhaseDefinition: Index = {
   replica: 1,
   documents: 2,
   documents_deleted: 0,
-  size: '6.5kb',
-  primary_size: '6.5kb',
+  size: 6656,
+  primary_size: 6656,
   aliases: 'none',
   isFrozen: false,
   hidden: false,
@@ -182,8 +182,8 @@ const indexWithLifecycleWaitingStep: Index = {
   replica: 1,
   documents: 2,
   documents_deleted: 0,
-  size: '6.5kb',
-  primary_size: '6.5kb',
+  size: 6656,
+  primary_size: 6656,
   aliases: 'none',
   isFrozen: false,
   hidden: false,
@@ -216,8 +216,8 @@ const indexWithNonExistentPolicyError: Index = {
   replica: 1,
   documents: 2,
   documents_deleted: 0,
-  size: '6.5kb',
-  primary_size: '6.5kb',
+  size: 6656,
+  primary_size: 6656,
   aliases: 'none',
   isFrozen: false,
   hidden: false,
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/common/types/index.ts b/x-pack/platform/plugins/private/index_lifecycle_management/common/types/index.ts
index 001abc6673242..bee31c373d69a 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/common/types/index.ts
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/common/types/index.ts
@@ -9,6 +9,8 @@ export type * from './api';
 
 export * from '@kbn/index-lifecycle-management-common-shared';
 
+export type { Index } from '@kbn/index-management-plugin/common';
+
 /**
  * These roles reflect how nodes are stratified into different data tiers.
  */
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/add_lifecycle_confirm_modal.tsx b/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/add_lifecycle_confirm_modal.tsx
index 6f4c70b54d491..9aa338c0ddc63 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/add_lifecycle_confirm_modal.tsx
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/add_lifecycle_confirm_modal.tsx
@@ -26,7 +26,7 @@ import {
   htmlIdGenerator,
 } from '@elastic/eui';
 
-import type { Index } from '@kbn/index-management-plugin/common';
+import type { Index } from '../../../common/types';
 import { loadPolicies, addLifecyclePolicyToIndex } from '../../application/services/api';
 import { showApiError } from '../../application/services/api_errors';
 import { toasts } from '../../application/services/notification';
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/index_lifecycle_summary.tsx b/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/index_lifecycle_summary.tsx
index 6426e0b2416c5..2e0516517134b 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/index_lifecycle_summary.tsx
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/components/index_lifecycle_summary.tsx
@@ -25,8 +25,9 @@ import {
 } from '@elastic/eui';
 
 import type { ApplicationStart } from '@kbn/core/public';
-import type { Index, IndexDetailsTab } from '@kbn/index-management-shared-types';
+import type { IndexDetailsTab } from '@kbn/index-management-shared-types';
 import type { IlmExplainLifecycleLifecycleExplainManaged } from '@elastic/elasticsearch/lib/api/types';
+import type { Index } from '../../../common/types';
 import type { Phase } from '../../../common/types';
 import { getPolicyEditPath } from '../../application/services/navigation';
 import { usePhaseColors } from '../../application/lib';
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/index.tsx b/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/index.tsx
index cae5b8c5f5842..ecc1049861f3f 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/index.tsx
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/public/extend_index_management/index.tsx
@@ -11,7 +11,8 @@ import { i18n } from '@kbn/i18n';
 import { EuiSearchBar } from '@elastic/eui';
 import type { ApplicationStart } from '@kbn/core/public';
 
-import type { Index, IndexManagementPluginSetup } from '@kbn/index-management-plugin/public';
+import type { IndexManagementPluginSetup } from '@kbn/index-management-plugin/public';
+import type { Index } from '../../common/types';
 
 import { retryLifecycleForIndex } from '../application/services/api';
 import { indexLifecycleTab } from './components/index_lifecycle_summary';
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/public/index_lifecycle_data_enricher.ts b/x-pack/platform/plugins/private/index_lifecycle_management/public/index_lifecycle_data_enricher.ts
new file mode 100644
index 0000000000000..302f468f65b20
--- /dev/null
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/public/index_lifecycle_data_enricher.ts
@@ -0,0 +1,30 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { IlmExplainLifecycleResponse } from '@elastic/elasticsearch/lib/api/types';
+import type { HttpSetup } from '@kbn/core/public';
+import type { EnricherResponse } from '@kbn/index-management-shared-types';
+import { i18n } from '@kbn/i18n';
+const SOURCE = i18n.translate('xpack.indexLifecycleMgmt.indexLifecycleDataEnricher.source', {
+  defaultMessage: 'index lifecycle',
+});
+
+export const indexLifecycleDataEnricher = {
+  name: SOURCE,
+  fn: async (client: HttpSetup, signal: AbortSignal): Promise<EnricherResponse> =>
+    client
+      .get<IlmExplainLifecycleResponse>('/api/index_lifecycle_management/explain', { signal })
+      .then((response) => {
+        return {
+          indices: Object.keys(response.indices).map((index) => ({
+            name: index,
+            ilm: response.indices[index],
+          })),
+          source: SOURCE,
+        };
+      }),
+};
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/public/plugin.tsx b/x-pack/platform/plugins/private/index_lifecycle_management/public/plugin.tsx
index 34400495806d7..a167028280479 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/public/plugin.tsx
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/public/plugin.tsx
@@ -21,6 +21,7 @@ import type {
   StartDependencies,
 } from './types';
 import { IlmLocatorDefinition } from './locator';
+import { indexLifecycleDataEnricher } from './index_lifecycle_data_enricher';
 import { PublicApiService } from './services';
 
 export class IndexLifecycleManagementPlugin
@@ -115,6 +116,7 @@ export class IndexLifecycleManagementPlugin
 
       if (indexManagement) {
         addAllExtensions(indexManagement.extensionsService);
+        indexManagement.indexDataEnricher.add(indexLifecycleDataEnricher);
       }
 
       plugins.share.url.locators.create(
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/index.ts b/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/index.ts
index e5d04609e458b..97084b0cc287f 100644
--- a/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/index.ts
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/index.ts
@@ -9,9 +9,11 @@ import type { RouteDependencies } from '../../../types';
 import { registerFetchRoute } from './register_fetch_route';
 import { registerCreateRoute } from './register_create_route';
 import { registerDeleteRoute } from './register_delete_route';
+import { registerExplainRoute } from './register_explain_route';
 
 export function registerPoliciesRoutes(dependencies: RouteDependencies) {
   registerFetchRoute(dependencies);
   registerCreateRoute(dependencies);
   registerDeleteRoute(dependencies);
+  registerExplainRoute(dependencies);
 }
diff --git a/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/register_explain_route.ts b/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/register_explain_route.ts
new file mode 100644
index 0000000000000..c2b5753fa0bed
--- /dev/null
+++ b/x-pack/platform/plugins/private/index_lifecycle_management/server/routes/api/policies/register_explain_route.ts
@@ -0,0 +1,37 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { addBasePath } from '../../../services';
+import type { RouteDependencies } from '../../../types';
+
+export const registerExplainRoute = ({
+  router,
+  license,
+  lib: { handleEsError },
+}: RouteDependencies) => {
+  router.get(
+    {
+      path: addBasePath('/explain'),
+      security: {
+        authz: {
+          enabled: false,
+          reason: 'Relies on es client for authorization',
+        },
+      },
+      validate: {},
+    },
+    license.guardApiRoute(async (context, request, response) => {
+      const { client } = (await context.core).elasticsearch;
+      try {
+        const body = await client.asCurrentUser.ilm.explainLifecycle({ index: '_all' });
+        return response.ok({ body });
+      } catch (error) {
+        return handleEsError({ error, response });
+      }
+    })
+  );
+};
diff --git a/x-pack/platform/plugins/private/rollup/moon.yml b/x-pack/platform/plugins/private/rollup/moon.yml
index 7e7be20e01fc3..8fa4b750b3337 100644
--- a/x-pack/platform/plugins/private/rollup/moon.yml
+++ b/x-pack/platform/plugins/private/rollup/moon.yml
@@ -41,6 +41,7 @@ dependsOn:
   - '@kbn/rollup'
   - '@kbn/licensing-types'
   - '@kbn/data-view-validation'
+  - '@kbn/index-management-shared-types'
 tags:
   - plugin
   - prod
diff --git a/x-pack/platform/plugins/private/rollup/public/plugin.ts b/x-pack/platform/plugins/private/rollup/public/plugin.ts
index 37f433215a1e4..951426697cc8a 100644
--- a/x-pack/platform/plugins/private/rollup/public/plugin.ts
+++ b/x-pack/platform/plugins/private/rollup/public/plugin.ts
@@ -17,6 +17,7 @@ import { UIM_APP_NAME } from '../common';
 import { setHttp, init as initDocumentation } from './crud_app/services';
 import { setNotifications, setFatalErrors, setUiStatsReporter } from './kibana_services';
 import type { ClientConfigType } from './types';
+import { rollupDataEnricher } from './rollup_data_enricher';
 
 export interface RollupPluginSetupDependencies {
   home?: HomePublicPluginSetup;
@@ -46,6 +47,7 @@ export class RollupPlugin implements Plugin {
       if (indexManagement) {
         indexManagement.extensionsService.addBadge(rollupBadgeExtension);
         indexManagement.extensionsService.addToggle(rollupToggleExtension);
+        indexManagement.indexDataEnricher.add(rollupDataEnricher);
       }
 
       if (home) {
diff --git a/x-pack/platform/plugins/private/rollup/public/rollup_data_enricher.ts b/x-pack/platform/plugins/private/rollup/public/rollup_data_enricher.ts
new file mode 100644
index 0000000000000..79fa64fc525de
--- /dev/null
+++ b/x-pack/platform/plugins/private/rollup/public/rollup_data_enricher.ts
@@ -0,0 +1,39 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { HttpSetup } from '@kbn/core/public';
+import type { RollupGetRollupIndexCapsResponse } from '@elastic/elasticsearch/lib/api/types';
+import type { EnricherResponse } from '@kbn/index-management-shared-types';
+import { i18n } from '@kbn/i18n';
+const SOURCE = i18n.translate('xpack.rollupJobs.rollupDataEnricher.source', {
+  defaultMessage: 'rollup',
+});
+
+export const rollupDataEnricher = {
+  name: SOURCE,
+  fn: async (client: HttpSetup, signal: AbortSignal): Promise<EnricherResponse> =>
+    client
+      .get<RollupGetRollupIndexCapsResponse>('/api/rollup/indices_caps', { signal })
+      .then((response) => {
+        return {
+          applyToAliases: true,
+          indices: Object.keys(response).reduce<{ name: string; isRollupIndex: true }[]>(
+            (acc, rollupJob) => {
+              response[rollupJob].rollup_jobs.forEach((job) => {
+                acc.push({
+                  name: job.rollup_index,
+                  isRollupIndex: true,
+                });
+              });
+              return acc;
+            },
+            []
+          ),
+          source: SOURCE,
+        };
+      }),
+};
diff --git a/x-pack/platform/plugins/private/rollup/server/routes/api/indices/index.ts b/x-pack/platform/plugins/private/rollup/server/routes/api/indices/index.ts
index 7f667fd00db88..27e8a9a3929e4 100644
--- a/x-pack/platform/plugins/private/rollup/server/routes/api/indices/index.ts
+++ b/x-pack/platform/plugins/private/rollup/server/routes/api/indices/index.ts
@@ -8,8 +8,10 @@
 import type { RouteDependencies } from '../../../types';
 import { registerGetRoute } from './register_get_route';
 import { registerValidateIndexPatternRoute } from './register_validate_index_pattern_route';
+import { registerGetIndexCapsRoute } from './register_get_index_caps';
 
 export function registerIndicesRoutes(dependencies: RouteDependencies) {
   registerGetRoute(dependencies);
   registerValidateIndexPatternRoute(dependencies);
+  registerGetIndexCapsRoute(dependencies);
 }
diff --git a/x-pack/platform/plugins/private/rollup/server/routes/api/indices/register_get_index_caps.ts b/x-pack/platform/plugins/private/rollup/server/routes/api/indices/register_get_index_caps.ts
new file mode 100644
index 0000000000000..4e07fbc54575c
--- /dev/null
+++ b/x-pack/platform/plugins/private/rollup/server/routes/api/indices/register_get_index_caps.ts
@@ -0,0 +1,43 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { addBasePath } from '../../../services';
+import type { RouteDependencies } from '../../../types';
+
+/**
+ * Returns a list of all rollup index names
+ */
+export const registerGetIndexCapsRoute = ({
+  router,
+  license,
+  lib: { handleEsError },
+}: RouteDependencies) => {
+  router.get(
+    {
+      // this endpoint is used by the data views plugin, see https://github.com/elastic/kibana/issues/152708
+      path: addBasePath('/indices_caps'),
+      security: {
+        authz: {
+          enabled: false,
+          reason: 'Relies on es client for authorization',
+        },
+      },
+      validate: false,
+    },
+    license.guardApiRoute(async (context, request, response) => {
+      try {
+        const { client: clusterClient } = (await context.core).elasticsearch;
+        const body = await clusterClient.asCurrentUser.rollup.getRollupIndexCaps({
+          index: '*',
+        });
+        return response.ok({ body });
+      } catch (err) {
+        return handleEsError({ error: err, response });
+      }
+    })
+  );
+};
diff --git a/x-pack/platform/plugins/private/rollup/tsconfig.json b/x-pack/platform/plugins/private/rollup/tsconfig.json
index 7be6e059e980d..c8a9885135f95 100644
--- a/x-pack/platform/plugins/private/rollup/tsconfig.json
+++ b/x-pack/platform/plugins/private/rollup/tsconfig.json
@@ -36,6 +36,7 @@
     "@kbn/rollup",
     "@kbn/licensing-types",
     "@kbn/data-view-validation",
+    "@kbn/index-management-shared-types",
 
   ],
   "exclude": [
diff --git a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/actions/data_stream_actions.ts b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/actions/data_stream_actions.ts
index e4ce12ccec173..9aa7c65bf2fcd 100644
--- a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/actions/data_stream_actions.ts
+++ b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/actions/data_stream_actions.ts
@@ -399,7 +399,7 @@ export const createNonDataStreamIndex = (name: string) => ({
   replica: 1,
   documents: 10000,
   documents_deleted: 100,
-  size: '156kb',
-  primary_size: '156kb',
+  size: 159744,
+  primary_size: 159744,
   name,
 });
diff --git a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/http_requests.ts b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/http_requests.ts
index b17695ba5a958..bb0925741fa90 100644
--- a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/http_requests.ts
+++ b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/helpers/http_requests.ts
@@ -66,8 +66,37 @@ const registerHttpRequestMockHelpers = (
   const setLoadTemplatesResponse = (response?: HttpResponse, error?: ResponseError) =>
     mockResponse('GET', `${API_BASE_PATH}/index_templates`, response, error);
 
-  const setLoadIndicesResponse = (response?: HttpResponse, error?: ResponseError) =>
-    mockResponse('GET', `${API_BASE_PATH}/indices`, response, error);
+  const setLoadIndicesStatsResponse = (response?: HttpResponse, error?: ResponseError) =>
+    mockResponse('GET', `${API_BASE_PATH}/indices_stats`, response, error);
+
+  /**
+   * The indices list endpoint switched from returning an array (`/indices`) to returning
+   * a record keyed by index name (`/indices_get`). Most tests still pass an array, so we
+   * normalize here and mock both endpoints for compatibility.
+   */
+  const setLoadIndicesResponse = (response?: HttpResponse, error?: ResponseError) => {
+    const normalizedIndicesGetResponse = (() => {
+      if (!response) return response;
+      if (Array.isArray(response)) {
+        return response.reduce<Record<string, unknown>>((acc, index: any) => {
+          if (index?.name) acc[index.name] = index;
+          return acc;
+        }, {});
+      }
+      return response;
+    })();
+
+    // New endpoint (record keyed by index name)
+    mockResponse('GET', `${API_BASE_PATH}/indices_get`, normalizedIndicesGetResponse, error);
+
+    // Legacy endpoint (array) - keep for older consumers/tests
+    const legacyResponse = Array.isArray(response)
+      ? response
+      : response && typeof response === 'object'
+      ? Object.values(response as Record<string, unknown>)
+      : response;
+    mockResponse('GET', `${API_BASE_PATH}/indices`, legacyResponse, error);
+  };
 
   const setReloadIndicesResponse = (response?: HttpResponse, error?: ResponseError) =>
     mockResponse('POST', `${API_BASE_PATH}/indices/reload`, response, error);
@@ -221,6 +250,7 @@ const registerHttpRequestMockHelpers = (
   };
   return {
     setLoadTemplatesResponse,
+    setLoadIndicesStatsResponse,
     setLoadIndicesResponse,
     setReloadIndicesResponse,
     setLoadDataStreamsResponse,
diff --git a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/data_streams_tab.test.ts b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/data_streams_tab.test.ts
index 746eefa5c2a3b..1fbaec2e48c01 100644
--- a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/data_streams_tab.test.ts
+++ b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/data_streams_tab.test.ts
@@ -790,7 +790,7 @@ describe('Data Streams tab', () => {
             })
           );
         });
-      });
+      }, 10000);
 
       test('allows to set infinite retention period', async () => {
         setupBulkRetentionMocks();
@@ -833,7 +833,7 @@ describe('Data Streams tab', () => {
             })
           );
         });
-      });
+      }, 10000);
     });
 
     describe('detail panel', () => {
@@ -1004,7 +1004,7 @@ describe('Data Streams tab', () => {
               })
             );
           });
-        });
+        }, 10000);
 
         test('can disable lifecycle', async () => {
           setupDataStreamsMocks();
@@ -1047,7 +1047,7 @@ describe('Data Streams tab', () => {
               })
             );
           });
-        });
+        }, 10000);
 
         test('allows to set infinite retention period', async () => {
           setupDataStreamsMocks();
diff --git a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/indices_tab.test.tsx b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/indices_tab.test.tsx
index ceaa86c5112ea..ecdbab7bb29bb 100644
--- a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/indices_tab.test.tsx
+++ b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/home/indices_tab.test.tsx
@@ -17,6 +17,7 @@ import { API_BASE_PATH, INTERNAL_API_BASE_PATH } from '../../../common';
 import { setupEnvironment } from '../helpers/setup_environment';
 import { renderHome } from '../helpers/render_home';
 import { httpService } from '../../../public/application/services/http';
+import { indexDataEnricher } from '../../../public/services';
 import {
   createIndexTableActions,
   createCreateIndexActions,
@@ -368,7 +369,7 @@ describe('<IndexManagementHome />', () => {
       expect(screen.getByTestId('indexTableCell-primary')).toHaveTextContent('1');
       expect(screen.getByTestId('indexTableCell-replica')).toHaveTextContent('1');
       expect(screen.getByTestId('indexTableCell-documents')).toBeInTheDocument();
-      expect(screen.getByTestId('indexTableCell-size')).toHaveTextContent('156kb');
+      expect(screen.getByTestId('indexTableCell-size')).toHaveTextContent('156.00 KB');
     });
 
     test('renders only size and docs count when enableIndexStats is false, enableSizeAndDocCount is true', async () => {
@@ -391,7 +392,7 @@ describe('<IndexManagementHome />', () => {
       expect(screen.getByTestId('indexTableCell-name')).toHaveTextContent('test');
       // Size and docs should be shown
       expect(screen.getByTestId('indexTableCell-documents')).toBeInTheDocument();
-      expect(screen.getByTestId('indexTableCell-size')).toHaveTextContent('156kb');
+      expect(screen.getByTestId('indexTableCell-size')).toHaveTextContent('156.00 KB');
       // Health, status, primary, replica should NOT be shown (enableIndexStats is false)
       expect(screen.queryByTestId('indexTableCell-health')).not.toBeInTheDocument();
       expect(screen.queryByTestId('indexTableCell-status')).not.toBeInTheDocument();
@@ -421,6 +422,29 @@ describe('<IndexManagementHome />', () => {
       expect(screen.queryByTestId('indexTableCell-documents')).not.toBeInTheDocument();
       expect(screen.queryByTestId('indexTableCell-size')).not.toBeInTheDocument();
     });
+
+    test('shows a warning callout when an index enricher fails', async () => {
+      httpRequestsMockHelpers.setLoadIndicesResponse([createNonDataStreamIndex(indexName)]);
+      const originalEnrichers = [...indexDataEnricher.enrichers];
+      indexDataEnricher.add({
+        name: 'test enricher',
+        fn: async () => ({ source: 'test enricher', error: true }),
+      });
+
+      try {
+        await renderHome(httpSetup);
+
+        await screen.findByTestId('indexTable');
+        expect(screen.getByTestId('indexTableCell-name')).toHaveTextContent('test');
+
+        const callout = await screen.findByTestId('indicesEnrichmentErrorCallout');
+        expect(callout).toHaveTextContent('test enricher');
+      } finally {
+        // Restore enrichers to avoid polluting other tests.
+        (indexDataEnricher as any)._enrichers.length = 0;
+        originalEnrichers.forEach((enricher) => indexDataEnricher.add(enricher));
+      }
+    });
   });
 
   describe('Create Index', () => {
@@ -462,7 +486,11 @@ describe('<IndexManagementHome />', () => {
       const actions = createCreateIndexActions();
 
       expect(httpSetup.get).toHaveBeenCalledTimes(1);
-      expect(httpSetup.get).toHaveBeenNthCalledWith(1, '/api/index_management/indices');
+      expect(httpSetup.get).toHaveBeenNthCalledWith(
+        1,
+        '/api/index_management/indices_get',
+        expect.anything()
+      );
 
       await actions.clickCreateIndexButton();
 
@@ -482,7 +510,11 @@ describe('<IndexManagementHome />', () => {
       // It refreshes indices after saving; wait so the table's async state update settles (avoids act warnings).
       await waitFor(() => {
         expect(httpSetup.get).toHaveBeenCalledTimes(2);
-        expect(httpSetup.get).toHaveBeenNthCalledWith(2, '/api/index_management/indices');
+        expect(httpSetup.get).toHaveBeenNthCalledWith(
+          2,
+          '/api/index_management/indices_get',
+          expect.anything()
+        );
       });
 
       // Creating triggers modal state updates; wait for modal to close so updates don't land after test end.
@@ -591,5 +623,50 @@ describe('<IndexManagementHome />', () => {
       expect(navigateToUrl).toHaveBeenCalledTimes(1);
       expect(navigateToUrl).toHaveBeenCalledWith(url);
     });
+
+    it('applies enricher updates to indices via alias when applyToAliases is true', async () => {
+      const indexName = 'concrete-index';
+      const aliasName = 'my-alias';
+
+      httpRequestsMockHelpers.setLoadIndicesResponse([
+        { ...createNonDataStreamIndex(indexName), aliases: [aliasName] },
+      ]);
+
+      const originalEnrichers = [...indexDataEnricher.enrichers];
+      indexDataEnricher.add({
+        name: 'alias enricher',
+        fn: async () => ({
+          source: 'alias enricher',
+          applyToAliases: true,
+          indices: [{ name: aliasName, isRollupIndex: true }],
+        }),
+      });
+
+      try {
+        await renderHome(httpSetup, {
+          appServicesContext: {
+            services: {
+              extensionsService: {
+                _columns: [
+                  {
+                    fieldName: 'isRollupIndex',
+                    label: 'Rollup flag',
+                    order: 999,
+                    render: (index: Index) => (index.isRollupIndex ? <div>ROLLUP</div> : null),
+                  },
+                ],
+              },
+            },
+          },
+        });
+
+        await screen.findByTestId('indexTable');
+        expect(await screen.findByText('ROLLUP')).toBeInTheDocument();
+      } finally {
+        // Restore enrichers to avoid polluting other tests.
+        (indexDataEnricher as any)._enrichers.length = 0;
+        originalEnrichers.forEach((enricher) => indexDataEnricher.add(enricher));
+      }
+    });
   });
 });
diff --git a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/index_details_page.test.tsx b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/index_details_page.test.tsx
index db57e04968500..139a0d3bef5d1 100644
--- a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/index_details_page.test.tsx
+++ b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/index_details_page.test.tsx
@@ -16,6 +16,7 @@ import type { RouteComponentProps } from 'react-router-dom';
 import type { IndexDetailsTab, IndexDetailsTabId } from '../../../common/constants';
 import { IndexDetailsSection } from '../../../common/constants';
 import { API_BASE_PATH, INTERNAL_API_BASE_PATH } from '../../../common';
+import { formatBytes } from '../../../public';
 
 import { DetailsPage } from '../../../public/application/sections/home/index_list/details_page/details_page';
 import { TYPE_DEFINITION } from '../../../public/application/components/mappings_editor/constants';
@@ -373,7 +374,9 @@ describe('<IndexDetailsPage />', () => {
       await renderPage();
       const storageDetails = screen.getByTestId('indexDetailsStorage').textContent;
       expect(storageDetails).toBe(
-        `Storage${testIndexMock.primary_size}Primary${testIndexMock.size}TotalShards${testIndexMock.primary} Primary / ${testIndexMock.replica} Replicas `
+        `Storage${formatBytes(testIndexMock.primary_size)}Primary${formatBytes(
+          testIndexMock.size
+        )}TotalShards${testIndexMock.primary} Primary / ${testIndexMock.replica} Replicas `
       );
     });
 
diff --git a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/mocks.ts b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/mocks.ts
index dc24872972cb4..5a6d0b4f93387 100644
--- a/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/mocks.ts
+++ b/x-pack/platform/plugins/shared/index_management/__jest__/client_integration/index_details_page/mocks.ts
@@ -17,8 +17,8 @@ export const testIndexMock: Index = {
   replica: '2',
   documents: 1,
   documents_deleted: 0,
-  size: '20kb',
-  primary_size: '10kb',
+  size: 20480,
+  primary_size: 10240,
   isFrozen: false,
   aliases: 'none',
   hidden: false,
diff --git a/x-pack/platform/plugins/shared/index_management/common/types/indices.ts b/x-pack/platform/plugins/shared/index_management/common/types/indices.ts
index eeda7aafdd0d8..5f87d5a144245 100644
--- a/x-pack/platform/plugins/shared/index_management/common/types/indices.ts
+++ b/x-pack/platform/plugins/shared/index_management/common/types/indices.ts
@@ -7,8 +7,8 @@
 
 import type { IndicesIndexSettingsKeys } from '@elastic/elasticsearch/lib/api/types';
 
-export type { Index } from '@kbn/index-management-shared-types';
-
+import type { Index } from '@kbn/index-management-shared-types';
+export type { Index };
 interface AnalysisModule {
   analyzer: {
     [key: string]: {
@@ -31,3 +31,7 @@ export interface IndexSettingsResponse {
   settings: IndexSettings;
   defaults: IndexSettings;
 }
+
+export interface IndexDataResponse {
+  body: Index[];
+}
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/components/mappings_editor/__jest__/client_integration/mappings_editor.test.tsx b/x-pack/platform/plugins/shared/index_management/public/application/components/mappings_editor/__jest__/client_integration/mappings_editor.test.tsx
index 3ee1a7d7c3e57..6a1c059496c9c 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/components/mappings_editor/__jest__/client_integration/mappings_editor.test.tsx
+++ b/x-pack/platform/plugins/shared/index_management/public/application/components/mappings_editor/__jest__/client_integration/mappings_editor.test.tsx
@@ -453,7 +453,7 @@ describe('Mappings editor: core', () => {
       expect(isDynamicMappingsEnabled).toBe(false);
       isNumericDetectionVisible = screen.queryByTestId('numericDetection');
       expect(isNumericDetectionVisible).not.toBeInTheDocument();
-    });
+    }, 10000);
 
     test('should keep default dynamic templates value when switching tabs', async () => {
       setup(
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/lib/format_bytes.ts b/x-pack/platform/plugins/shared/index_management/public/application/lib/format_bytes.ts
new file mode 100644
index 0000000000000..c673f77c84595
--- /dev/null
+++ b/x-pack/platform/plugins/shared/index_management/public/application/lib/format_bytes.ts
@@ -0,0 +1,10 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import numeral from '@elastic/numeral';
+
+export const formatBytes = (bytes?: number): string => numeral(bytes || 0).format('0.00 b');
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/details_page_overview.tsx b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/details_page_overview.tsx
index ef4467a5a4ef5..429d1d2b7823b 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/details_page_overview.tsx
+++ b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/details_page_overview.tsx
@@ -31,7 +31,8 @@ import {
   EisUpdateCallout,
 } from '@kbn/search-api-panels';
 import { CLOUD_CONNECT_NAV_ID } from '@kbn/deeplinks-management/constants';
-import type { Index } from '../../../../../../../common';
+import { type Index } from '../../../../../../../common';
+import { formatBytes } from '../../../../../lib/format_bytes';
 import { useAppContext } from '../../../../../app_context';
 import { documentationService, useLoadIndexMappings } from '../../../../../services';
 import { languageDefinitions, curlDefinition } from './languages';
@@ -84,6 +85,9 @@ export const DetailsPageOverview: React.FunctionComponent<Props> = ({ indexDetai
   const { data } = useUserPrivileges(indexDetails.name);
   const hasUpdateMappingsPrivileges = data?.privileges?.canManageIndex === true;
 
+  const sizeFormatted = formatBytes(size);
+  const primarySizeFormatted = formatBytes(primarySize);
+
   const codeSnippetArguments: LanguageDefinitionSnippetArguments = {
     url: elasticsearchUrl,
     apiKey: 'your_api_key',
@@ -141,7 +145,12 @@ export const DetailsPageOverview: React.FunctionComponent<Props> = ({ indexDetai
       )}
 
       <EuiFlexGrid columns={isLarge ? 3 : 1}>
-        <StorageDetails size={size} primarySize={primarySize} primary={primary} replica={replica} />
+        <StorageDetails
+          size={sizeFormatted}
+          primarySize={primarySizeFormatted}
+          primary={primary}
+          replica={replica}
+        />
 
         <StatusDetails
           documents={documents}
@@ -150,7 +159,7 @@ export const DetailsPageOverview: React.FunctionComponent<Props> = ({ indexDetai
           health={health}
         />
 
-        <SizeDocCountDetails size={size} documents={documents} />
+        <SizeDocCountDetails size={sizeFormatted} documents={documents} />
 
         <AliasesDetails aliases={aliases} />
 
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/size_doc_count_details.tsx b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/size_doc_count_details.tsx
index 456d9096ba9fd..9ffc2b432bbb4 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/size_doc_count_details.tsx
+++ b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/size_doc_count_details.tsx
@@ -17,12 +17,13 @@ import {
   useEuiFontSize,
 } from '@elastic/eui';
 import { i18n } from '@kbn/i18n';
+import { EuiI18nNumber } from '@elastic/eui';
 import type { Index } from '../../../../../../../common';
 import { useAppContext } from '../../../../../app_context';
 import { OverviewCard } from './overview_card';
 
 export const SizeDocCountDetails: FunctionComponent<{
-  size: Index['size'];
+  size: string;
   documents: Index['documents'];
 }> = ({ size, documents }) => {
   const largeFontSize = useEuiFontSize('l').fontSize;
@@ -65,7 +66,9 @@ export const SizeDocCountDetails: FunctionComponent<{
             <EuiFlexItem grow={false}>
               <EuiIcon type="documents" />
             </EuiFlexItem>
-            <EuiFlexItem grow={false}>{documents}</EuiFlexItem>
+            <EuiFlexItem grow={false}>
+              <EuiI18nNumber value={documents || 0} />
+            </EuiFlexItem>
             <EuiFlexItem>
               <EuiTextColor color="subdued">
                 {i18n.translate(
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/storage_details.tsx b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/storage_details.tsx
index 470d5197938ae..ac4cbdc0dbefe 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/storage_details.tsx
+++ b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/details_page/details_page_overview/storage_details.tsx
@@ -23,8 +23,8 @@ import type { Index } from '../../../../../../../common';
 import { OverviewCard } from './overview_card';
 
 export const StorageDetails: FunctionComponent<{
-  primarySize: Index['primary_size'];
-  size: Index['size'];
+  primarySize: string;
+  size: string;
   primary: Index['primary'];
   replica: Index['replica'];
 }> = ({ primarySize, size, primary, replica }) => {
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.container.js b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.container.js
index 66406576902c2..3fb41b564e535 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.container.js
+++ b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.container.js
@@ -16,6 +16,7 @@ import {
   getIndicesAsArray,
   indicesLoading,
   indicesError,
+  indicesEnrichmentErrors,
   getTableState,
 } from '../../../../store/selectors';
 import {
@@ -40,6 +41,7 @@ const mapStateToProps = (state, props) => {
     isSortAscending: isSortAscending(state),
     indicesLoading: indicesLoading(state),
     indicesError: indicesError(state),
+    indicesEnrichmentErrors: indicesEnrichmentErrors(state),
     toggleNameToVisibleMap: getTableState(state).toggleNameToVisibleMap,
   };
 };
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.js b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.js
index 37c257995f63c..c2801ee187585 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.js
+++ b/x-pack/platform/plugins/shared/index_management/public/application/sections/home/index_list/index_table/index_table.js
@@ -41,6 +41,7 @@ import {
   reactRouterNavigate,
   attemptToURIDecode,
 } from '../../../../../shared_imports';
+import { formatBytes } from '../../../../..';
 import { getDataStreamDetailsLink, navigateToIndexDetailsPage } from '../../../../services/routing';
 import { documentationService } from '../../../../services/documentation';
 import { AppContextConsumer } from '../../../../app_context';
@@ -135,6 +136,7 @@ const getColumnConfigs = ({
         label: i18n.translate('xpack.idxMgmt.indexTable.headers.storageSizeHeader', {
           defaultMessage: 'Storage size',
         }),
+        render: (index) => formatBytes(index.size),
         order: 70,
       }
     );
@@ -147,7 +149,7 @@ const getColumnConfigs = ({
           defaultMessage: 'Health',
         }),
         order: 20,
-        render: (index) => <DataHealth health={index.health} />,
+        render: (index) => (index.health ? <DataHealth health={index.health} /> : undefined),
       },
       {
         fieldName: 'status',
@@ -301,6 +303,35 @@ export class IndexTable extends Component {
     );
   }
 
+  renderEnrichmentErrors() {
+    const { indicesEnrichmentErrors } = this.props;
+    if (!indicesEnrichmentErrors || indicesEnrichmentErrors.length === 0) {
+      return null;
+    }
+
+    return (
+      <>
+        <EuiCallOut
+          iconType="warning"
+          color="warning"
+          data-test-subj="indicesEnrichmentErrorCallout"
+          title={i18n.translate('xpack.idxMgmt.indexTable.enrichmentErrorTitle', {
+            defaultMessage: 'Some index details could not be loaded',
+          })}
+        >
+          <FormattedMessage
+            id="xpack.idxMgmt.indexTable.enrichmentErrorDescription"
+            defaultMessage="The following data sources failed to load: {sources}."
+            values={{
+              sources: indicesEnrichmentErrors.join(', '),
+            }}
+          />
+        </EuiCallOut>
+        <EuiSpacer size="m" />
+      </>
+    );
+  }
+
   onFilterChanged = ({ query, error }) => {
     if (error) {
       this.setState({ filterError: error });
@@ -707,6 +738,8 @@ export class IndexTable extends Component {
 
               {this.renderFilterError()}
 
+              {this.renderEnrichmentErrors()}
+
               <EuiSpacer size="m" />
 
               <div style={{ maxWidth: '100%', overflow: 'auto' }}>
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/services/api.ts b/x-pack/platform/plugins/shared/index_management/public/application/services/api.ts
index c33fcdd2d5a7e..09fdc05d7bb36 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/services/api.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/application/services/api.ts
@@ -49,6 +49,7 @@ import type { UiMetricService } from './ui_metric';
 import type { FieldFromIndicesRequest } from '../../../common';
 import type { Fields } from '../components/mappings_editor/types';
 import type { UserStartPrivilegesResponse } from '../../../server/lib/types';
+import { indexDataEnricher } from '../../services';
 
 interface ReloadIndicesOptions {
   asSystemRequest?: boolean;
@@ -140,9 +141,93 @@ export async function updateDSFailureStore(
   });
 }
 
-export async function loadIndices() {
-  const response = await httpService.httpClient.get<any>(`${API_BASE_PATH}/indices`);
-  return response.data ? response.data : response;
+export async function loadIndices(
+  onIndicesLoaded: (indices: Index[]) => void,
+  onEnrichmentError: (source: string) => void,
+  abortSignal: AbortSignal
+) {
+  const indicesPromise = httpService.httpClient.get<Record<string, Index>>(
+    `${API_BASE_PATH}/indices_get`,
+    {
+      signal: abortSignal,
+    }
+  );
+
+  // Run all requests in parallel
+  const enrichedPromises = indexDataEnricher.enrichIndices(httpService.httpClient, abortSignal);
+
+  // we'll wait for the main request to complete first so the index list has stability
+  const indices = await indicesPromise.catch((error) => {
+    if (error.name === 'AbortError') {
+      // return undefined and exit early if the request was aborted
+      return;
+    }
+    throw error;
+  });
+
+  if (!indices) {
+    return;
+  }
+
+  // Pre-compute an alias -> index names lookup for enrichers that return data keyed by alias.
+  const aliasToIndexNames = new Map<string, string[]>();
+  Object.entries(indices).forEach(([indexName, index]) => {
+    const aliases = index.aliases;
+    const aliasList = Array.isArray(aliases)
+      ? aliases
+      : typeof aliases === 'string' && aliases !== 'none'
+      ? [aliases]
+      : [];
+
+    aliasList.forEach((alias) => {
+      if (!alias) return;
+      const existing = aliasToIndexNames.get(alias);
+      if (existing) {
+        existing.push(indexName);
+      } else {
+        aliasToIndexNames.set(alias, [indexName]);
+      }
+    });
+  });
+
+  onIndicesLoaded(Object.values(indices));
+
+  // iterate over all the requests for additional info
+  enrichedPromises.forEach((enrichedPromise) => {
+    enrichedPromise.then((enriched) => {
+      // iterate over the array of additional data and merge it into the original index data
+      if (enriched.indices) {
+        enriched.indices.forEach((enrichedIndex) => {
+          const directMatch = indices[enrichedIndex.name];
+          if (directMatch) {
+            Object.assign(directMatch, enrichedIndex);
+            return;
+          }
+
+          if (enriched.applyToAliases) {
+            const targets = aliasToIndexNames.get(enrichedIndex.name);
+            if (targets && targets.length) {
+              // Don't overwrite the concrete index name with the alias name.
+
+              const { name, ...rest } = enrichedIndex;
+              targets.forEach((targetIndexName) => {
+                const target = indices[targetIndexName];
+                if (target) {
+                  Object.assign(target, rest);
+                }
+              });
+            }
+          }
+        });
+        onIndicesLoaded(Object.values(indices));
+      }
+
+      // If an enricher fails, keep the index list stable but surface the issue to the UI.
+      if (enriched.error) {
+        onEnrichmentError(enriched.source);
+      }
+    });
+  });
 }
 
 export async function reloadIndices(
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.test.ts b/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.test.ts
index 1e5d509a4d130..421a568596ad8 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.test.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.test.ts
@@ -81,42 +81,6 @@ describe('sortTable', () => {
     });
   });
 
-  describe('sorts by size', () => {
-    const indices = [{ size: '248b' }, { size: '2.35mb' }, { size: '6.36kb' }] as Index[];
-    it('ascending', () => {
-      const sorted = sortTable(indices, 'size', true);
-      expect(sorted).toEqual([{ size: '248b' }, { size: '6.36kb' }, { size: '2.35mb' }]);
-    });
-    it('descending', () => {
-      const sorted = sortTable(indices, 'size', false);
-      expect(sorted).toEqual([{ size: '2.35mb' }, { size: '6.36kb' }, { size: '248b' }]);
-    });
-  });
-
-  describe('sorts by primary_size', () => {
-    const indices = [
-      { primary_size: '248b' },
-      { primary_size: '2.35mb' },
-      { primary_size: '6.36kb' },
-    ] as Index[];
-    it('ascending', () => {
-      const sorted = sortTable(indices, 'primary_size', true);
-      expect(sorted).toEqual([
-        { primary_size: '248b' },
-        { primary_size: '6.36kb' },
-        { primary_size: '2.35mb' },
-      ]);
-    });
-    it('descending', () => {
-      const sorted = sortTable(indices, 'primary_size', false);
-      expect(sorted).toEqual([
-        { primary_size: '2.35mb' },
-        { primary_size: '6.36kb' },
-        { primary_size: '248b' },
-      ]);
-    });
-  });
-
   describe('sorts by data_stream', () => {
     const indices = [
       { data_stream: 'test1' },
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.ts b/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.ts
index 1a5463dcba19e..f21557789a3c3 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/application/services/sort_table.ts
@@ -20,16 +20,6 @@ type SortField =
   | 'primary_size'
   | 'data_stream';
 
-type Unit = 'kb' | 'mb' | 'gb' | 'tb' | 'pb';
-
-const unitMagnitude = {
-  kb: 1,
-  mb: 2,
-  gb: 3,
-  tb: 4,
-  pb: 5,
-};
-
 type SortFunction = (index: Index) => any;
 
 const numericSort =
@@ -37,29 +27,11 @@ const numericSort =
   (item) =>
     Number(item[fieldName]);
 
-const byteSort =
-  (fieldName: SortField): SortFunction =>
-  (item) => {
-    const rawValue = String(item[fieldName]);
-    // raw value can be missing if index is closed
-    if (!rawValue) {
-      return 0;
-    }
-    const matchResult = rawValue.match(/(.*)([kmgtp]b)/);
-    if (!matchResult) {
-      return 0;
-    }
-    const [, number, unit] = matchResult;
-    return +number * Math.pow(1024, unitMagnitude[unit as Unit]);
-  };
-
 const getSorters = (extensionsService?: ExtensionsService) => {
   const sorters = {
     primary: numericSort('primary'),
     replica: numericSort('replica'),
     documents: numericSort('documents'),
-    size: byteSort('size'),
-    primary_size: byteSort('primary_size'),
   } as any;
   const columns = extensionsService?.columns ?? [];
   for (const column of columns) {
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/store/actions/load_indices.js b/x-pack/platform/plugins/shared/index_management/public/application/store/actions/load_indices.js
index f5a5679b02767..2ebc3bd65f482 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/store/actions/load_indices.js
+++ b/x-pack/platform/plugins/shared/index_management/public/application/store/actions/load_indices.js
@@ -11,14 +11,27 @@ import { loadIndices as request } from '../../services';
 export const loadIndicesStart = createAction('INDEX_MANAGEMENT_LOAD_INDICES_START');
 export const loadIndicesSuccess = createAction('INDEX_MANAGEMENT_LOAD_INDICES_SUCCESS');
 export const loadIndicesError = createAction('INDEX_MANAGEMENT_LOAD_INDICES_ERROR');
+export const loadIndicesEnrichmentError = createAction(
+  'INDEX_MANAGEMENT_LOAD_INDICES_ENRICHMENT_ERROR'
+);
+
+let abortController;
 
 export const loadIndices = () => async (dispatch) => {
+  if (abortController && !abortController.signal.aborted) {
+    abortController.abort();
+  }
+
+  abortController = new AbortController();
+
   dispatch(loadIndicesStart());
-  let indices;
   try {
-    indices = await request();
+    await request(
+      (indices) => dispatch(loadIndicesSuccess({ indices })),
+      (source) => dispatch(loadIndicesEnrichmentError({ source })),
+      abortController.signal
+    );
   } catch (error) {
     return dispatch(loadIndicesError(error));
   }
-  dispatch(loadIndicesSuccess({ indices }));
 };
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/store/reducers/indices.js b/x-pack/platform/plugins/shared/index_management/public/application/store/reducers/indices.js
index a52e5638de7e1..78ba352bdbe6c 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/store/reducers/indices.js
+++ b/x-pack/platform/plugins/shared/index_management/public/application/store/reducers/indices.js
@@ -13,6 +13,7 @@ import {
   reloadIndicesSuccess,
   loadIndicesStart,
   loadIndicesError,
+  loadIndicesEnrichmentError,
 } from '../actions';
 
 const byId = handleActions(
@@ -101,13 +102,35 @@ const error = handleActions(
       const newState = { ...error };
       return newState;
     },
+    [loadIndicesStart]() {
+      return false;
+    },
+    [loadIndicesSuccess]() {
+      return false;
+    },
   },
   false
 );
 
+const enrichmentErrors = handleActions(
+  {
+    [loadIndicesStart]() {
+      return [];
+    },
+    [loadIndicesEnrichmentError](state, action) {
+      const { source } = action.payload;
+      if (!source) return state;
+      if (state.includes(source)) return state;
+      return [...state, source];
+    },
+  },
+  []
+);
+
 export const indices = combineReducers({
   loading,
   error,
+  enrichmentErrors,
   byId,
   allIds,
 });
diff --git a/x-pack/platform/plugins/shared/index_management/public/application/store/selectors/index.js b/x-pack/platform/plugins/shared/index_management/public/application/store/selectors/index.js
index 2e1e01f3122ae..d4bf1e1dbd0c0 100644
--- a/x-pack/platform/plugins/shared/index_management/public/application/store/selectors/index.js
+++ b/x-pack/platform/plugins/shared/index_management/public/application/store/selectors/index.js
@@ -17,6 +17,7 @@ export { extensionsService };
 export const getIndices = (state) => state.indices.byId;
 export const indicesLoading = (state) => state.indices.loading;
 export const indicesError = (state) => state.indices.error;
+export const indicesEnrichmentErrors = (state) => state.indices.enrichmentErrors;
 export const getIndicesAsArray = (state) => Object.values(state.indices.byId);
 export const getIndicesByName = (state, indexNames) => {
   const indices = getIndices(state);
diff --git a/x-pack/platform/plugins/shared/index_management/public/index.ts b/x-pack/platform/plugins/shared/index_management/public/index.ts
index 36d2cdefa9efb..e6c7982e4019f 100644
--- a/x-pack/platform/plugins/shared/index_management/public/index.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/index.ts
@@ -24,3 +24,5 @@ export { getIndexListUri, getTemplateDetailsLink } from './application/services/
 
 export type { IndexManagementLocatorParams } from '@kbn/index-management-shared-types';
 export { INDEX_MANAGEMENT_LOCATOR_ID } from './locator';
+
+export { formatBytes } from './application/lib/format_bytes';
diff --git a/x-pack/platform/plugins/shared/index_management/public/index_stats_enricher.ts b/x-pack/platform/plugins/shared/index_management/public/index_stats_enricher.ts
new file mode 100644
index 0000000000000..56ccca366d1d0
--- /dev/null
+++ b/x-pack/platform/plugins/shared/index_management/public/index_stats_enricher.ts
@@ -0,0 +1,37 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { HttpSetup } from '@kbn/core/public';
+import type { IndicesStatsResponse } from '@elastic/elasticsearch/lib/api/types';
+import type { EnricherResponse } from '@kbn/index-management-shared-types';
+import { i18n } from '@kbn/i18n';
+import { API_BASE_PATH } from '../common/constants';
+const SOURCE = i18n.translate('xpack.idxMgmt.indexStatsEnricher.source', {
+  defaultMessage: 'index stats',
+});
+
+export const indexStatsEnricher = {
+  name: SOURCE,
+  fn: async (client: HttpSetup, signal: AbortSignal): Promise<EnricherResponse> =>
+    client
+      .get<IndicesStatsResponse>(`${API_BASE_PATH}/indices_stats`, { signal })
+      .then((response) => {
+        const indices = response.indices || {};
+        return {
+          indices: Object.keys(indices).map((name) => ({
+            name,
+            health: indices[name]?.health,
+            status: indices[name]?.status,
+            uuid: indices[name]?.uuid,
+            documents_deleted: indices[name]?.primaries?.docs?.deleted ?? 0,
+            primary_size: indices[name]?.primaries?.store?.size_in_bytes ?? 0,
+            size: indices[name]?.total?.store?.size_in_bytes ?? 0,
+          })),
+          source: SOURCE,
+        };
+      }),
+};
diff --git a/x-pack/platform/plugins/shared/index_management/public/plugin.ts b/x-pack/platform/plugins/shared/index_management/public/plugin.ts
index 9b057932979d2..986eed31261a1 100644
--- a/x-pack/platform/plugins/shared/index_management/public/plugin.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/plugin.ts
@@ -46,6 +46,8 @@ import { IndexManagementLocatorDefinition } from './locator';
 import { ComponentTemplateFlyout } from './application/components/component_templates/component_templates_flyout_embeddable';
 import { DataStreamFlyout } from './application/sections/home/data_stream_list/data_stream_detail_panel/data_stream_flyout_embeddable';
 import { IndexTemplateFlyout } from './application/sections/home/template_list/template_details/index_template_flyout_embeddable';
+import { indexDataEnricher, type IndexDataEnricher } from './services';
+import { indexStatsEnricher } from './index_stats_enricher';
 
 export class IndexMgmtUIPlugin
   implements
@@ -81,6 +83,8 @@ export class IndexMgmtUIPlugin
 
   private capabilities$ = new Subject<Capabilities>();
 
+  private readonly indexDataEnricher: IndexDataEnricher;
+
   constructor(ctx: PluginInitializerContext) {
     // Temporary hack to provide the service instances in module files in order to avoid a big refactor
     // For the selectors we should expose them through app dependencies and read them from there on each container component.
@@ -119,6 +123,8 @@ export class IndexMgmtUIPlugin
       enforceAdaptiveAllocations: isServerless,
       enableFailureStoreRetentionDisabling: enableFailureStoreRetentionDisabling ?? true,
     };
+
+    this.indexDataEnricher = indexDataEnricher;
   }
 
   public setup(
@@ -167,6 +173,11 @@ export class IndexMgmtUIPlugin
 
     this.apiService = new PublicApiService(coreSetup.http);
 
+    // disabled in serverless
+    if (this.config.enableIndexStats) {
+      this.indexDataEnricher.add(indexStatsEnricher);
+    }
+
     return {
       apiService: this.apiService,
       extensionsService: this.extensionsService.setup(),
@@ -186,6 +197,9 @@ export class IndexMgmtUIPlugin
         });
       },
       locator: this.locator,
+      indexDataEnricher: {
+        add: this.indexDataEnricher.add.bind(this.indexDataEnricher),
+      },
     };
   }
 
diff --git a/x-pack/platform/plugins/shared/index_management/public/services/extensions_service.ts b/x-pack/platform/plugins/shared/index_management/public/services/extensions_service.ts
index 8641ca370949c..7dfa7e63287ca 100644
--- a/x-pack/platform/plugins/shared/index_management/public/services/extensions_service.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/services/extensions_service.ts
@@ -24,7 +24,7 @@ export class ExtensionsService {
   private _badges: IndexBadge[] = [
     {
       matchIndex: (index) => {
-        return index.isFrozen;
+        return !!index.isFrozen;
       },
       label: i18n.translate('xpack.idxMgmt.frozenBadgeLabel', {
         defaultMessage: 'Frozen',
@@ -36,7 +36,7 @@ export class ExtensionsService {
   private _toggles: IndexToggle[] = [
     {
       matchIndex: (index) => {
-        return index.hidden;
+        return !!index.hidden;
       },
       label: i18n.translate('xpack.idxMgmt.indexTable.hiddenIndicesSwitchLabel', {
         defaultMessage: 'Include hidden indices',
diff --git a/x-pack/platform/plugins/shared/index_management/public/services/index.ts b/x-pack/platform/plugins/shared/index_management/public/services/index.ts
index 92c6e95a8b432..03833cdd3357a 100644
--- a/x-pack/platform/plugins/shared/index_management/public/services/index.ts
+++ b/x-pack/platform/plugins/shared/index_management/public/services/index.ts
@@ -8,3 +8,6 @@
 export { ExtensionsService } from './extensions_service';
 
 export { PublicApiService } from './public_api_service';
+
+export { IndexDataEnricher, indexDataEnricher } from './index_data_enricher';
+export type { Enricher } from '@kbn/index-management-shared-types';
diff --git a/x-pack/platform/plugins/shared/index_management/public/services/index_data_enricher.ts b/x-pack/platform/plugins/shared/index_management/public/services/index_data_enricher.ts
new file mode 100644
index 0000000000000..50cecb12ca15f
--- /dev/null
+++ b/x-pack/platform/plugins/shared/index_management/public/services/index_data_enricher.ts
@@ -0,0 +1,40 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { HttpSetup } from '@kbn/core/public';
+import type { Enricher, EnricherResponse } from '@kbn/index-management-shared-types';
+
+export class IndexDataEnricher {
+  private readonly _enrichers: Enricher[] = [];
+
+  public add(enricher: Enricher) {
+    this._enrichers.push(enricher);
+  }
+
+  public enrichIndices = (client: HttpSetup, signal: AbortSignal): Promise<EnricherResponse>[] => {
+    return this.enrichers.map((enricher) =>
+      enricher.fn(client, signal).catch((error) => {
+        // aborted request, dont show error
+        if (error.name === 'AbortError') {
+          return {
+            source: enricher.name,
+          };
+        }
+        return {
+          error: true,
+          source: enricher.name,
+        };
+      })
+    );
+  };
+
+  public get enrichers() {
+    return this._enrichers;
+  }
+}
+
+export const indexDataEnricher = new IndexDataEnricher();
diff --git a/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.test.ts b/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.test.ts
index 6be9c85058f17..28bdbda9e1afb 100644
--- a/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.test.ts
+++ b/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.test.ts
@@ -160,8 +160,8 @@ describe('[Index management API Routes] fetch indices lib function', () => {
             health: undefined,
             status: undefined,
             documents: 0,
-            size: '0b',
-            primary_size: '0b',
+            size: 0,
+            primary_size: 0,
           }),
         ],
       });
@@ -198,7 +198,7 @@ describe('[Index management API Routes] fetch indices lib function', () => {
             hidden: false,
             data_stream: undefined,
             documents: 100,
-            size: '1000b',
+            size: 1000,
           },
         ],
       });
diff --git a/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.ts b/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.ts
index 1c38e43ac344c..3581e14ba6d22 100644
--- a/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.ts
+++ b/x-pack/platform/plugins/shared/index_management/server/lib/fetch_indices.ts
@@ -5,7 +5,6 @@
  * 2.0.
  */
 
-import { ByteSizeValue } from '@kbn/config-schema';
 import type { IScopedClusterClient } from '@kbn/core/server';
 import type { IndexDataEnricher } from '../services';
 import type { Index } from '..';
@@ -80,10 +79,8 @@ async function fetchIndicesCall(
           uuid: indexStats?.uuid,
           documents: indexStats?.primaries?.docs?.count ?? 0,
           documents_deleted: indexStats?.primaries?.docs?.deleted ?? 0,
-          size: new ByteSizeValue(indexStats?.total?.store?.size_in_bytes ?? 0).toString(),
-          primary_size: new ByteSizeValue(
-            indexStats?.primaries?.store?.size_in_bytes ?? 0
-          ).toString(),
+          size: indexStats?.total?.store?.size_in_bytes ?? 0,
+          primary_size: indexStats?.primaries?.store?.size_in_bytes ?? 0,
         };
       }
 
@@ -92,7 +89,7 @@ async function fetchIndicesCall(
   }
 
   // uses the _metering/stats API to get the number of documents and size of the index
-  // this API is only available in ES3
+  // this API is only available in ES3 (serverless)
   if (config.isSizeAndDocCountEnabled) {
     const { indices: indicesStats } =
       await client.asSecondaryAuthUser.transport.request<MeteringStatsResponse>({
@@ -118,7 +115,7 @@ async function fetchIndicesCall(
         return {
           ...baseResponse,
           documents: indexStats?.num_docs ?? 0,
-          size: new ByteSizeValue(indexStats?.size_in_bytes ?? 0).toString(),
+          size: indexStats?.size_in_bytes ?? 0,
         };
       }
 
diff --git a/x-pack/platform/plugins/shared/index_management/server/lib/types.ts b/x-pack/platform/plugins/shared/index_management/server/lib/types.ts
index 957270e529f05..902b5bf1669c6 100644
--- a/x-pack/platform/plugins/shared/index_management/server/lib/types.ts
+++ b/x-pack/platform/plugins/shared/index_management/server/lib/types.ts
@@ -10,6 +10,10 @@ export interface MeteringStats {
   num_docs: number;
   size_in_bytes: number;
 }
+
+export interface MeteringStatsResponse {
+  indices: MeteringStats[];
+}
 export interface UserStartPrivilegesResponse {
   privileges: {
     canManageIndex: boolean;
diff --git a/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/indices_get.ts b/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/indices_get.ts
new file mode 100644
index 0000000000000..97f06e8de683e
--- /dev/null
+++ b/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/indices_get.ts
@@ -0,0 +1,104 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+import type { RouteDependencies } from '../../../types';
+import { addBasePath } from '..';
+import type { MeteringStatsResponse } from '../../../lib/types';
+import type { Index } from '../../../../common/types/indices';
+
+export function registerIndicesGet({ router, lib: { handleEsError }, config }: RouteDependencies) {
+  router.get(
+    {
+      path: addBasePath('/indices_get'),
+      security: {
+        authz: {
+          enabled: false,
+          reason: 'Relies on es client for authorization',
+        },
+      },
+      validate: false,
+    },
+    async (context, request, response) => {
+      const { client } = (await context.core).elasticsearch;
+
+      try {
+        const indicesPromise = client.asCurrentUser.indices.get({
+          index: '*',
+          expand_wildcards: ['hidden', 'all'],
+          // only get specified index properties from ES to keep the response under 536MB
+          // node.js string length limit: https://github.com/nodejs/node/issues/33960
+          filter_path: [
+            '*.aliases',
+            '*.settings.index.number_of_shards',
+            '*.settings.index.number_of_replicas',
+            '*.settings.index.frozen',
+            '*.settings.index.hidden',
+            '*.settings.index.mode',
+            '*.data_stream',
+          ],
+          // for better performance only compute aliases and settings of indices but not mappings
+          features: ['aliases', 'settings'],
+        });
+
+        // Used for serverless
+        let statsPromise: Promise<MeteringStatsResponse> | undefined;
+        if (config.isSizeAndDocCountEnabled) {
+          // this api is internal only and therefore requires elevated privileges
+          statsPromise = client.asSecondaryAuthUser.transport
+            .request<MeteringStatsResponse>({
+              method: 'GET',
+              path: '/_metering/stats/*',
+            })
+            .catch(() => ({ indices: [] }));
+        } else {
+          statsPromise = Promise.resolve({ indices: [] });
+        }
+
+        const [indices, { indices: indicesStats }] = await Promise.all([
+          indicesPromise,
+          statsPromise,
+        ]);
+
+        const indexStatsMap = indicesStats.reduce<
+          Record<string, { size_in_bytes: number; num_docs: number }>
+        >((prev, index) => {
+          prev[index.name] = { size_in_bytes: index.size_in_bytes, num_docs: index.num_docs };
+          return prev;
+        }, {});
+
+        const mappedIndices: Record<string, Index> = Object.keys(indices).reduce<
+          Record<string, Index>
+        >((prev, indexName: string) => {
+          const indexData = indices[indexName];
+          const aliases = Object.keys(indexData.aliases!);
+          prev[indexName] = {
+            name: indexName,
+            primary: Number(indexData.settings?.index?.number_of_shards),
+            replica: Number(indexData.settings?.index?.number_of_replicas),
+            isFrozen: indexData.settings?.index?.frozen === 'true',
+            hidden: indexData.settings?.index?.hidden === 'true',
+            data_stream: indexData.data_stream,
+            mode: indexData.settings?.index?.mode,
+          };
+
+          if (aliases.length) {
+            prev[indexName].aliases = aliases;
+          }
+
+          if (indexStatsMap[indexName]) {
+            prev[indexName].documents = indexStatsMap[indexName].num_docs ?? 0;
+            prev[indexName].size = indexStatsMap[indexName].size_in_bytes ?? 0;
+          }
+          return prev;
+        }, {});
+
+        return response.ok({ body: mappedIndices });
+      } catch (error) {
+        return handleEsError({ error, response });
+      }
+    }
+  );
+}
diff --git a/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/indices_stats.ts b/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/indices_stats.ts
new file mode 100644
index 0000000000000..a028c012583cc
--- /dev/null
+++ b/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/indices_stats.ts
@@ -0,0 +1,45 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+import type { RouteDependencies } from '../../../types';
+import { addBasePath } from '..';
+
+export function registerIndicesStats({ router, lib: { handleEsError } }: RouteDependencies) {
+  router.get(
+    {
+      path: addBasePath('/indices_stats'),
+      security: {
+        authz: {
+          enabled: false,
+          reason: 'Relies on es client for authorization',
+        },
+      },
+      validate: false,
+    },
+    async (context, request, response) => {
+      const { client } = (await context.core).elasticsearch;
+      try {
+        const resp = await client.asCurrentUser.indices.stats({
+          index: '*',
+          expand_wildcards: ['hidden', 'all'],
+          forbid_closed_indices: false,
+          metric: ['docs', 'store'],
+          filter_path: [
+            '*.*.uuid',
+            '*.*.status',
+            '*.*.health',
+            '*.*.primaries.docs.deleted',
+            '*.*.total.store.size_in_bytes',
+            '*.*.primaries.store.size_in_bytes',
+          ],
+        });
+        return response.ok({ body: resp });
+      } catch (error) {
+        return handleEsError({ error, response });
+      }
+    }
+  );
+}
diff --git a/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/register_indices_routes.ts b/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/register_indices_routes.ts
index 63b7e92b5b039..8a37fcf3ec851 100644
--- a/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/register_indices_routes.ts
+++ b/x-pack/platform/plugins/shared/index_management/server/routes/api/indices/register_indices_routes.ts
@@ -20,6 +20,9 @@ import { registerGetRoute } from './register_get_route';
 import { registerCreateRoute } from './register_create_route';
 import { registerPostIndexDocCountRoute } from './register_post_index_doc_count';
 
+import { registerIndicesGet } from './indices_get';
+import { registerIndicesStats } from './indices_stats';
+
 export function registerIndicesRoutes(dependencies: RouteDependencies) {
   registerClearCacheRoute(dependencies);
   registerCloseRoute(dependencies);
@@ -33,4 +36,6 @@ export function registerIndicesRoutes(dependencies: RouteDependencies) {
   registerGetRoute(dependencies);
   registerCreateRoute(dependencies);
   registerPostIndexDocCountRoute(dependencies);
+  registerIndicesGet(dependencies);
+  registerIndicesStats(dependencies);
 }
diff --git a/x-pack/platform/plugins/shared/index_management/server/test/helpers/indices_fixtures.ts b/x-pack/platform/plugins/shared/index_management/server/test/helpers/indices_fixtures.ts
index 824fa30d02e5e..f2bed1b6eed6c 100644
--- a/x-pack/platform/plugins/shared/index_management/server/test/helpers/indices_fixtures.ts
+++ b/x-pack/platform/plugins/shared/index_management/server/test/helpers/indices_fixtures.ts
@@ -44,8 +44,8 @@ export const createTestIndexResponse = (index?: Partial<Index>) => {
     name: 'test_index',
     primary: 1,
     replica: 1,
-    size: '100b',
-    primary_size: '100b',
+    size: 100,
+    primary_size: 100,
     status: 'open',
     uuid: 'test_index',
     ...index,
diff --git a/x-pack/solutions/search/plugins/search_indices/moon.yml b/x-pack/solutions/search/plugins/search_indices/moon.yml
index f0507ee234df6..bc4df7abed64a 100644
--- a/x-pack/solutions/search/plugins/search_indices/moon.yml
+++ b/x-pack/solutions/search/plugins/search_indices/moon.yml
@@ -55,6 +55,7 @@ dependsOn:
   - '@kbn/react-query'
   - '@kbn/search-api-panels'
   - '@kbn/deeplinks-management'
+  - '@kbn/index-management-plugin'
 tags:
   - plugin
   - prod
diff --git a/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateful_storage_stat.tsx b/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateful_storage_stat.tsx
index dea0d05ce8b17..294e058844bbb 100644
--- a/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateful_storage_stat.tsx
+++ b/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateful_storage_stat.tsx
@@ -7,6 +7,7 @@
 
 import React from 'react';
 import type { Index } from '@kbn/index-management-shared-types';
+import { formatBytes } from '@kbn/index-management-plugin/public';
 
 import { useEuiTheme } from '@elastic/eui';
 import { i18n } from '@kbn/i18n';
@@ -36,17 +37,17 @@ export const StatefulIndexStorageStat = ({
         defaultMessage: 'Storage',
       })}
       data-test-subj="QuickStatsStorage"
-      secondaryTitle={index.size ?? '0b'}
+      secondaryTitle={formatBytes(index.size)}
       stats={[
         {
           title: INDEX_SIZE_LABEL,
-          description: index.size ?? '0b',
+          description: formatBytes(index.size),
         },
         {
           title: i18n.translate('xpack.searchIndices.quickStats.primarySize_title', {
             defaultMessage: 'Primary Size',
           }),
-          description: index.primary_size ?? '0b',
+          description: formatBytes(index.primary_size),
         },
       ]}
     />
diff --git a/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateless_document_cout_stat.tsx b/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateless_document_cout_stat.tsx
index 3b6ecee0576a0..e23bae5e437f8 100644
--- a/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateless_document_cout_stat.tsx
+++ b/x-pack/solutions/search/plugins/search_indices/public/components/quick_stats/stateless_document_cout_stat.tsx
@@ -7,6 +7,7 @@
 
 import React from 'react';
 import type { Index } from '@kbn/index-management-shared-types';
+import { formatBytes } from '@kbn/index-management-plugin/public';
 
 import { EuiI18nNumber, useEuiTheme } from '@elastic/eui';
 
@@ -48,7 +49,7 @@ export const StatelessDocumentCountStat = ({
         },
         {
           title: INDEX_SIZE_LABEL,
-          description: index.size ?? '0b',
+          description: formatBytes(index.size),
         },
       ]}
       tooltipContent={DOCUMENT_COUNT_TOOLTIP}
diff --git a/x-pack/solutions/search/plugins/search_indices/tsconfig.json b/x-pack/solutions/search/plugins/search_indices/tsconfig.json
index f254a41ee0b33..00ebee4130e9a 100644
--- a/x-pack/solutions/search/plugins/search_indices/tsconfig.json
+++ b/x-pack/solutions/search/plugins/search_indices/tsconfig.json
@@ -48,6 +48,7 @@
     "@kbn/react-query",
     "@kbn/search-api-panels",
     "@kbn/deeplinks-management",
+    "@kbn/index-management-plugin",
   ],
   "exclude": [
     "target/**/*",
diff --git a/x-pack/solutions/search/test/functional_search/tests/search_index_details.ts b/x-pack/solutions/search/test/functional_search/tests/search_index_details.ts
index 462c4fd3803a1..4a6f02a6668d5 100644
--- a/x-pack/solutions/search/test/functional_search/tests/search_index_details.ts
+++ b/x-pack/solutions/search/test/functional_search/tests/search_index_details.ts
@@ -112,7 +112,7 @@ export default function ({ getPageObjects, getService }: FtrProviderContext) {
         it('should have quick stats', async () => {
           await pageObjects.searchIndexDetailsPage.expectQuickStats();
           await pageObjects.searchIndexDetailsPage.expectQuickStatsToHaveIndexStatus();
-          await pageObjects.searchIndexDetailsPage.expectQuickStatsToHaveIndexStorage('227b');
+          await pageObjects.searchIndexDetailsPage.expectQuickStatsToHaveIndexStorage('227.00 B');
           await pageObjects.searchIndexDetailsPage.expectQuickStatsAIMappings();
         });
 
diff --git a/x-pack/solutions/search/test/page_objects/search_index_details_page.ts b/x-pack/solutions/search/test/page_objects/search_index_details_page.ts
index 4a1cba6b4924d..fa76ba22f4099 100644
--- a/x-pack/solutions/search/test/page_objects/search_index_details_page.ts
+++ b/x-pack/solutions/search/test/page_objects/search_index_details_page.ts
@@ -74,9 +74,9 @@ export function SearchIndexDetailPageProvider({ getService }: FtrProviderContext
         'QuickStatsDocumentCount'
       );
       expect(await quickStatsDocumentElem.getVisibleText()).to.contain('Document count\n0');
-      expect(await quickStatsDocumentElem.getVisibleText()).not.to.contain('Index Size\n0b');
+      expect(await quickStatsDocumentElem.getVisibleText()).not.to.contain('Index Size\n0.00 B');
       await quickStatsDocumentElem.click();
-      expect(await quickStatsDocumentElem.getVisibleText()).to.contain('Index Size\n0b');
+      expect(await quickStatsDocumentElem.getVisibleText()).to.contain('Index Size\n0.00 B');
     },
 
     async expectQuickStatsToHaveIndexStatus() {