diff --git a/ui/app/components/clients/charts/vertical-bar-basic.ts b/ui/app/components/clients/charts/vertical-bar-basic.ts
index 5b6dc33232..0929e3f6af 100644
--- a/ui/app/components/clients/charts/vertical-bar-basic.ts
+++ b/ui/app/components/clients/charts/vertical-bar-basic.ts
@@ -9,8 +9,8 @@ import { BAR_WIDTH, numericalAxisLabel } from 'vault/utils/chart-helpers';
 import { formatNumber } from 'core/helpers/format-number';
 import { parseAPITimestamp } from 'core/utils/date-formatters';
 
-import type { MonthlyChartData } from 'vault/vault/charts/client-counts';
-import type { TotalClients } from 'core/utils/client-count-utils';
+import type { MonthlyChartData } from 'vault/vault/client-counts/charts';
+import type { TotalClients } from 'vault/vault/client-counts/activity-api';
 
 interface Args {
   data: MonthlyChartData[];
diff --git a/ui/app/components/clients/charts/vertical-bar-stacked.ts b/ui/app/components/clients/charts/vertical-bar-stacked.ts
index b513d7cb42..be168ce288 100644
--- a/ui/app/components/clients/charts/vertical-bar-stacked.ts
+++ b/ui/app/components/clients/charts/vertical-bar-stacked.ts
@@ -9,8 +9,9 @@ import { BAR_WIDTH, numericalAxisLabel } from 'vault/utils/chart-helpers';
 import { formatNumber } from 'core/helpers/format-number';
 import { parseAPITimestamp } from 'core/utils/date-formatters';
 import { flatGroup } from 'd3-array';
-import type { MonthlyChartData } from 'vault/vault/charts/client-counts';
-import type { ClientTypes } from 'core/utils/client-count-utils';
+
+import type { MonthlyChartData } from 'vault/vault/client-counts/charts';
+import type { ClientTypes } from 'vault/vault/client-counts/activity-api';
 
 interface Args {
   chartHeight?: number;
diff --git a/ui/app/components/clients/filter-toolbar.ts b/ui/app/components/clients/filter-toolbar.ts
index ca573419c8..5b79ff9607 100644
--- a/ui/app/components/clients/filter-toolbar.ts
+++ b/ui/app/components/clients/filter-toolbar.ts
@@ -9,13 +9,13 @@ import { action } from '@ember/object';
 import { debounce } from '@ember/runloop';
 import { capitalize } from '@ember/string';
 import { buildISOTimestamp, parseAPITimestamp } from 'core/utils/date-formatters';
+import { ClientFilters } from 'core/utils/client-count-utils';
 
-import {
+import type {
   ActivityExportData,
-  ClientFilters,
+  ClientFilterTypes,
   MountClients,
-  type ClientFilterTypes,
-} from 'core/utils/client-count-utils';
+} from 'vault/vault/client-counts/activity-api';
 import type { HTMLElementEvent } from 'vault/forms';
 
 interface Args {
diff --git a/ui/app/components/clients/page/client-list.ts b/ui/app/components/clients/page/client-list.ts
index fec80ea72a..f1df17913b 100644
--- a/ui/app/components/clients/page/client-list.ts
+++ b/ui/app/components/clients/page/client-list.ts
@@ -7,15 +7,12 @@ import Component from '@glimmer/component';
 import { tracked } from '@glimmer/tracking';
 import { action } from '@ember/object';
 import { HTMLElementEvent } from 'vault/forms';
-import {
-  filterIsSupported,
-  filterTableData,
-  type ClientFilterTypes,
-  type ActivityExportData,
-} from 'core/utils/client-count-utils';
+import { filterIsSupported, filterTableData } from 'core/utils/client-count-utils';
 import { service } from '@ember/service';
 import FlagsService from 'vault/services/flags';
 
+import type { ActivityExportData, ClientFilterTypes } from 'vault/vault/client-counts/activity-api';
+
 // Define the base mapping to derive types from
 const CLIENT_TYPE_MAP = {
   entity: 'Entity',
diff --git a/ui/app/components/clients/page/overview.ts b/ui/app/components/clients/page/overview.ts
index 0c58b9bdde..e3268fdfee 100644
--- a/ui/app/components/clients/page/overview.ts
+++ b/ui/app/components/clients/page/overview.ts
@@ -6,9 +6,10 @@
 import Component from '@glimmer/component';
 import { cached, tracked } from '@glimmer/tracking';
 import { action } from '@ember/object';
-import { filterTableData, flattenMounts, type ClientFilterTypes } from 'core/utils/client-count-utils';
+import { filterTableData, flattenMounts } from 'core/utils/client-count-utils';
 
 import type ClientsActivityModel from 'vault/vault/models/clients/activity';
+import type { ClientFilterTypes } from 'vault/vault/client-counts/activity-api';
 
 export interface Args {
   activity: ClientsActivityModel;
diff --git a/ui/app/components/clients/running-total.ts b/ui/app/components/clients/running-total.ts
index b3a04ce19d..2feb478af6 100644
--- a/ui/app/components/clients/running-total.ts
+++ b/ui/app/components/clients/running-total.ts
@@ -7,7 +7,7 @@ import Component from '@glimmer/component';
 import { tracked } from '@glimmer/tracking';
 import { service } from '@ember/service';
 
-import type { ByMonthNewClients, TotalClients } from 'core/utils/client-count-utils';
+import type { ByMonthNewClients, TotalClients } from 'vault/vault/client-counts/activity-api';
 import type FlagsService from 'vault/services/flags';
 
 interface Args {
diff --git a/ui/app/components/clients/table.ts b/ui/app/components/clients/table.ts
index eee2afb9a8..b9fb4b7bec 100644
--- a/ui/app/components/clients/table.ts
+++ b/ui/app/components/clients/table.ts
@@ -8,10 +8,10 @@ import { action } from '@ember/object';
 import { cached, tracked } from '@glimmer/tracking';
 import { paginate } from 'core/utils/paginate-list';
 import { next } from '@ember/runloop';
-
-import type { ClientFilterTypes } from 'core/utils/client-count-utils';
 import { service } from '@ember/service';
-import VersionService from 'vault/services/version';
+
+import type VersionService from 'vault/services/version';
+import type { ClientFilterTypes } from 'vault/vault/client-counts/activity-api';
 
 /**
  * @module ClientsTable
diff --git a/ui/lib/core/addon/utils/client-count-utils.ts b/ui/lib/core/addon/utils/client-count-utils.ts
index 33e2372044..dd09d539b9 100644
--- a/ui/lib/core/addon/utils/client-count-utils.ts
+++ b/ui/lib/core/addon/utils/client-count-utils.ts
@@ -9,6 +9,21 @@ import { ROOT_NAMESPACE } from 'vault/services/namespace';
 import { sanitizePath } from './sanitize-path';
 
 import type ClientsVersionHistoryModel from 'vault/vault/models/clients/version-history';
+import type {
+  ActivityExportData,
+  ActivityMonthBlock,
+  ActivityMonthEmpty,
+  ActivityMonthStandard,
+  ByMonthNewClients,
+  ByNamespaceClients,
+  ClientFilterTypes,
+  ClientTypes,
+  Counts,
+  MountClients,
+  MountNewClients,
+  NamespaceNewClients,
+  NamespaceObject,
+} from 'vault/vault/client-counts/activity-api';
 
 /*
 The client count utils are responsible for serializing the sys/internal/counters/activity API response
@@ -17,7 +32,7 @@ The initial API response shape and serialized types are defined below.
 To help visualize there are sample responses in ui/tests/helpers/clients.js
 */
 
-// add new types here
+// Add new sys/activity/counters client count types here
 export const CLIENT_TYPES = [
   'acme_clients',
   'clients', // summation of total clients
@@ -26,8 +41,6 @@ export const CLIENT_TYPES = [
   'secret_syncs',
 ] as const;
 
-export type ClientTypes = (typeof CLIENT_TYPES)[number];
-
 // map to dropdowns for filtering client count tables
 export enum ClientFilters {
   NAMESPACE = 'namespace_path',
@@ -37,14 +50,10 @@ export enum ClientFilters {
   MONTH = 'month',
 }
 
-export type ClientFilterTypes = (typeof ClientFilters)[keyof typeof ClientFilters];
-
 // client_type in the exported activity data differs slightly from the types of client keys
 // returned by sys/internal/counters/activity endpoint (:
 export const EXPORT_CLIENT_TYPES = ['non-entity-token', 'pki-acme', 'secret-sync', 'entity'] as const;
 
-export type ActivityExportClientTypes = (typeof EXPORT_CLIENT_TYPES)[number];
-
 // returns array of VersionHistoryModels for noteworthy upgrades: 1.9, 1.10
 // that occurred between timestamps (i.e. queried activity data)
 export const filterVersionHistory = (
@@ -239,133 +248,3 @@ export function hasNamespacesKey(
 ): obj is ByMonthNewClients {
   return 'namespaces' in obj;
 }
-
-// TYPES RETURNED BY UTILS (serialized)
-export interface TotalClients {
-  clients: number;
-  entity_clients: number;
-  non_entity_clients: number;
-  secret_syncs: number;
-  acme_clients: number;
-}
-
-// extend this type when the counts are optional (eg for new clients)
-interface TotalClientsSometimes {
-  clients?: number;
-  entity_clients?: number;
-  non_entity_clients?: number;
-  secret_syncs?: number;
-  acme_clients?: number;
-}
-
-export interface ByNamespaceClients extends TotalClients {
-  label: string;
-  mounts: MountClients[];
-}
-
-export interface MountClients extends TotalClients {
-  label: string;
-  mount_path: string;
-  mount_type: string;
-  namespace_path: string;
-}
-
-export interface ByMonthClients extends TotalClients {
-  timestamp: string;
-  namespaces: ByNamespaceClients[];
-  new_clients: ByMonthNewClients;
-}
-
-export interface ByMonthNewClients extends TotalClientsSometimes {
-  timestamp: string;
-  namespaces: ByNamespaceClients[];
-}
-
-export interface NamespaceByKey extends TotalClients {
-  timestamp: string;
-  new_clients: NamespaceNewClients;
-}
-
-export interface NamespaceNewClients extends TotalClientsSometimes {
-  timestamp: string;
-  label: string;
-  mounts: MountClients[];
-}
-
-export interface MountByKey extends TotalClients {
-  timestamp: string;
-  label: string;
-  new_clients: MountNewClients;
-}
-
-export interface MountNewClients extends TotalClientsSometimes {
-  timestamp: string;
-  label: string;
-}
-
-// Serialized data from activity/export API
-export interface ActivityExportData {
-  client_id: string;
-  client_type: ActivityExportClientTypes;
-  namespace_id: string;
-  namespace_path: string;
-  mount_accessor: string;
-  mount_type: string;
-  mount_path: string;
-  token_creation_time: string;
-  client_first_used_time: string;
-}
-export interface EntityClients extends ActivityExportData {
-  entity_name: string;
-  entity_alias_name: string;
-  local_entity_alias: boolean;
-  policies: string[];
-  entity_metadata: Record<string, any>;
-  entity_alias_metadata: Record<string, any>;
-  entity_alias_custom_metadata: Record<string, any>;
-  entity_group_ids: string[];
-}
-
-// API RESPONSE SHAPE (prior to serialization)
-
-export interface NamespaceObject {
-  namespace_id: string;
-  namespace_path: string;
-  counts: Counts;
-  mounts: { mount_path: string; counts: Counts; mount_type: string }[];
-}
-
-type ActivityMonthStandard = {
-  timestamp: string; // YYYY-MM-01T00:00:00Z (always the first day of the month)
-  counts: Counts;
-  namespaces: NamespaceObject[];
-  new_clients: {
-    counts: Counts;
-    namespaces: NamespaceObject[];
-    timestamp: string;
-  };
-};
-type ActivityMonthNoNewClients = {
-  timestamp: string; // YYYY-MM-01T00:00:00Z (always the first day of the month)
-  counts: Counts;
-  namespaces: NamespaceObject[];
-  new_clients: {
-    counts: null;
-    namespaces: null;
-  };
-};
-type ActivityMonthEmpty = {
-  timestamp: string; // YYYY-MM-01T00:00:00Z (always the first day of the month)
-  counts: null;
-  namespaces: null;
-  new_clients: null;
-};
-export type ActivityMonthBlock = ActivityMonthEmpty | ActivityMonthNoNewClients | ActivityMonthStandard;
-
-export interface Counts {
-  acme_clients: number;
-  clients: number;
-  entity_clients: number;
-  non_entity_clients: number;
-  secret_syncs: number;
-}
diff --git a/ui/types/vault/client-counts/activity-api.ts b/ui/types/vault/client-counts/activity-api.ts
new file mode 100644
index 0000000000..c71f50fb62
--- /dev/null
+++ b/ui/types/vault/client-counts/activity-api.ts
@@ -0,0 +1,127 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
+import { CLIENT_TYPES, ClientFilters, EXPORT_CLIENT_TYPES } from 'core/utils/client-count-utils';
+
+// At time of writing ClientTypes are: 'acme_clients' | 'clients' | 'entity_clients' | 'non_entity_clients' | 'secret_syncs'
+export type ClientTypes = (typeof CLIENT_TYPES)[number];
+
+// 'namespace_path' | 'mount_path' | 'mount_type' | 'month'
+export type ClientFilterTypes = (typeof ClientFilters)[keyof typeof ClientFilters];
+
+// client_type in the exported activity data differs slightly from the types of client keys
+// returned by sys/internal/counters/activity endpoint (:
+// 'non-entity-token' | 'pki-acme' | 'secret-sync' | 'entity'
+type ActivityExportClientTypes = (typeof EXPORT_CLIENT_TYPES)[number];
+
+export interface TotalClients {
+  clients: number;
+  entity_clients: number;
+  non_entity_clients: number;
+  secret_syncs: number;
+  acme_clients: number;
+}
+
+// extend this type when the counts are optional (eg for new clients)
+interface TotalClientsSometimes {
+  clients?: number;
+  entity_clients?: number;
+  non_entity_clients?: number;
+  secret_syncs?: number;
+  acme_clients?: number;
+}
+
+export interface ByNamespaceClients extends TotalClients {
+  label: string;
+  mounts: MountClients[];
+}
+
+export interface MountClients extends TotalClients {
+  label: string;
+  mount_path: string;
+  mount_type: string;
+  namespace_path: string;
+}
+
+export interface ByMonthClients extends TotalClients {
+  timestamp: string;
+  namespaces: ByNamespaceClients[];
+  new_clients: ByMonthNewClients;
+}
+
+export interface ByMonthNewClients extends TotalClientsSometimes {
+  timestamp: string;
+  namespaces: ByNamespaceClients[];
+}
+
+export interface NamespaceNewClients extends TotalClientsSometimes {
+  timestamp: string;
+  label: string;
+  mounts: MountClients[];
+}
+
+export interface MountNewClients extends TotalClientsSometimes {
+  timestamp: string;
+  label: string;
+}
+
+// SERIALIZED RESPONSE DATA from activity/export API
+export interface ActivityExportData {
+  client_id: string;
+  client_type: ActivityExportClientTypes;
+  namespace_id: string;
+  namespace_path: string;
+  mount_accessor: string;
+  mount_type: string;
+  mount_path: string;
+  token_creation_time: string;
+  client_first_used_time: string;
+}
+
+// API RESPONSE SHAPE (prior to serialization)
+export interface NamespaceObject {
+  namespace_id: string;
+  namespace_path: string;
+  counts: Counts;
+  mounts: { mount_path: string; counts: Counts; mount_type: string }[];
+}
+
+export type ActivityMonthStandard = {
+  timestamp: string; // YYYY-MM-01T00:00:00Z (always the first day of the month)
+  counts: Counts;
+  namespaces: NamespaceObject[];
+  new_clients: {
+    counts: Counts;
+    namespaces: NamespaceObject[];
+    timestamp: string;
+  };
+};
+
+export type ActivityMonthNoNewClients = {
+  timestamp: string; // YYYY-MM-01T00:00:00Z (always the first day of the month)
+  counts: Counts;
+  namespaces: NamespaceObject[];
+  new_clients: {
+    counts: null;
+    namespaces: null;
+  };
+};
+
+export type ActivityMonthEmpty = {
+  timestamp: string; // YYYY-MM-01T00:00:00Z (always the first day of the month)
+  counts: null;
+  namespaces: null;
+  new_clients: null;
+};
+
+export type ActivityMonthBlock = ActivityMonthEmpty | ActivityMonthNoNewClients | ActivityMonthStandard;
+
+export interface Counts {
+  acme_clients: number;
+  clients: number;
+  entity_clients: number;
+  non_entity_clients: number;
+  secret_syncs: number;
+}
diff --git a/ui/types/vault/charts/client-counts.d.ts b/ui/types/vault/client-counts/charts.ts
similarity index 87%
rename from ui/types/vault/charts/client-counts.d.ts
rename to ui/types/vault/client-counts/charts.ts
index c3ca2a922c..34e9b371ed 100644
--- a/ui/types/vault/charts/client-counts.d.ts
+++ b/ui/types/vault/client-counts/charts.ts
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: BUSL-1.1
  */
 
-import type { TotalClients } from 'core/utils/client-count-utils';
+import type { TotalClients } from './activity-api';
 
 // TotalClients and EmptyCount are mutually exclusive
 // but that's hard to represent in an interface
diff --git a/ui/types/vault/models/clients/activity.d.ts b/ui/types/vault/models/clients/activity.d.ts
index 58e7123777..f8952ce468 100644
--- a/ui/types/vault/models/clients/activity.d.ts
+++ b/ui/types/vault/models/clients/activity.d.ts
@@ -4,8 +4,11 @@
  */
 
 import type { Model } from 'vault/app-types';
-
-import type { ByMonthClients, ByNamespaceClients, TotalClients } from 'core/utils/client-count-utils';
+import type {
+  ByMonthClients,
+  ByNamespaceClients,
+  TotalClients,
+} from 'vault/vault/client-counts/activity-api';
 
 export default interface ClientsActivityModel extends Model {
   byMonth: ByMonthClients[];