diff --git a/packages/backend/src/plugins/kubernetes.ts b/packages/backend/src/plugins/kubernetes.ts
index b089b20405..3bc7a5dcbe 100644
--- a/packages/backend/src/plugins/kubernetes.ts
+++ b/packages/backend/src/plugins/kubernetes.ts
@@ -26,7 +26,6 @@ export default async function createPlugin(
   const { router } = await KubernetesBuilder.createBuilder({
     logger: env.logger,
     config: env.config,
-    discovery: env.discovery,
     catalogApi,
   }).build();
   return router;
diff --git a/plugins/kubernetes-backend/package.json b/plugins/kubernetes-backend/package.json
index 002575e25d..10eb6828f5 100644
--- a/plugins/kubernetes-backend/package.json
+++ b/plugins/kubernetes-backend/package.json
@@ -40,7 +40,6 @@
     "@backstage/catalog-client": "^1.0.4-next.1",
     "@backstage/catalog-model": "^1.1.0-next.2",
     "@backstage/config": "^1.0.1",
-    "@backstage/core-plugin-api": "^1.0.3-next.0",
     "@backstage/errors": "^1.1.0-next.0",
     "@backstage/plugin-auth-node": "^0.2.3-next.1",
     "@backstage/plugin-kubernetes-common": "^0.4.0-next.0",
diff --git a/plugins/kubernetes-backend/src/cluster-locator/CatalogClusterLocator.ts b/plugins/kubernetes-backend/src/cluster-locator/CatalogClusterLocator.ts
index 03fa347e5f..7183b71831 100644
--- a/plugins/kubernetes-backend/src/cluster-locator/CatalogClusterLocator.ts
+++ b/plugins/kubernetes-backend/src/cluster-locator/CatalogClusterLocator.ts
@@ -41,12 +41,11 @@ export class CatalogClusterLocator implements KubernetesClustersSupplier {
     const filter: Record<string, symbol | string> = {
       kind: 'Resource',
       'spec.type': 'kubernetes-cluster',
+      [apiServerKey]: CATALOG_FILTER_EXISTS,
+      [apiServerCaKey]: CATALOG_FILTER_EXISTS,
+      [authProviderKey]: CATALOG_FILTER_EXISTS,
     };
 
-    filter[apiServerKey] = CATALOG_FILTER_EXISTS;
-    filter[apiServerCaKey] = CATALOG_FILTER_EXISTS;
-    filter[authProviderKey] = CATALOG_FILTER_EXISTS;
-
     const clusters = await this.catalogClient.getEntities({
       filter: [filter],
     });
diff --git a/plugins/kubernetes-backend/src/cluster-locator/index.test.ts b/plugins/kubernetes-backend/src/cluster-locator/index.test.ts
index 1ba533ccd4..f494fbbf2b 100644
--- a/plugins/kubernetes-backend/src/cluster-locator/index.test.ts
+++ b/plugins/kubernetes-backend/src/cluster-locator/index.test.ts
@@ -16,9 +16,11 @@
 
 import { Config, ConfigReader } from '@backstage/config';
 import { getCombinedClusterSupplier } from './index';
-import { PluginEndpointDiscovery } from '@backstage/backend-common';
+import { CatalogApi } from '@backstage/catalog-client';
 
 describe('getCombinedClusterSupplier', () => {
+  let catalogApi: CatalogApi;
+
   it('should retrieve cluster details from config', async () => {
     const config: Config = new ConfigReader(
       {
@@ -45,12 +47,8 @@ describe('getCombinedClusterSupplier', () => {
       },
       'ctx',
     );
-    const discovery: PluginEndpointDiscovery = {
-      getBaseUrl: jest.fn().mockResolvedValue('http://test-backend'),
-      getExternalBaseUrl: jest.fn(),
-    };
 
-    const clusterSupplier = getCombinedClusterSupplier(config, discovery);
+    const clusterSupplier = getCombinedClusterSupplier(config, catalogApi);
     const result = await clusterSupplier.getClusters();
 
     expect(result).toStrictEqual([
@@ -104,12 +102,8 @@ describe('getCombinedClusterSupplier', () => {
       },
       'ctx',
     );
-    const discovery: PluginEndpointDiscovery = {
-      getBaseUrl: jest.fn().mockResolvedValue('http://test-backend'),
-      getExternalBaseUrl: jest.fn(),
-    };
 
-    expect(() => getCombinedClusterSupplier(config, discovery)).toThrowError(
+    expect(() => getCombinedClusterSupplier(config, catalogApi)).toThrowError(
       new Error('Unsupported kubernetes.clusterLocatorMethods: "magic"'),
     );
   });
diff --git a/plugins/kubernetes-backend/src/cluster-locator/index.ts b/plugins/kubernetes-backend/src/cluster-locator/index.ts
index 200d064514..b55dfe5a35 100644
--- a/plugins/kubernetes-backend/src/cluster-locator/index.ts
+++ b/plugins/kubernetes-backend/src/cluster-locator/index.ts
@@ -20,8 +20,7 @@ import { ClusterDetails, KubernetesClustersSupplier } from '../types/types';
 import { ConfigClusterLocator } from './ConfigClusterLocator';
 import { GkeClusterLocator } from './GkeClusterLocator';
 import { CatalogClusterLocator } from './CatalogClusterLocator';
-import { PluginEndpointDiscovery } from '@backstage/backend-common';
-import { CatalogClient } from '@backstage/catalog-client';
+import { CatalogApi } from '@backstage/catalog-client';
 
 class CombinedClustersSupplier implements KubernetesClustersSupplier {
   constructor(readonly clusterSuppliers: KubernetesClustersSupplier[]) {}
@@ -41,10 +40,9 @@ class CombinedClustersSupplier implements KubernetesClustersSupplier {
 
 export const getCombinedClusterSupplier = (
   rootConfig: Config,
-  discovery: PluginEndpointDiscovery,
+  catalogClient: CatalogApi,
   refreshInterval: Duration | undefined = undefined,
 ): KubernetesClustersSupplier => {
-  const catalogClient = new CatalogClient({ discoveryApi: discovery });
   const clusterSuppliers = rootConfig
     .getConfigArray('kubernetes.clusterLocatorMethods')
     .map(clusterLocatorMethod => {
diff --git a/plugins/kubernetes-backend/src/service/KubernetesBuilder.test.ts b/plugins/kubernetes-backend/src/service/KubernetesBuilder.test.ts
index c39a72808f..ed56c2da8a 100644
--- a/plugins/kubernetes-backend/src/service/KubernetesBuilder.test.ts
+++ b/plugins/kubernetes-backend/src/service/KubernetesBuilder.test.ts
@@ -14,10 +14,7 @@
  * limitations under the License.
  */
 
-import {
-  getVoidLogger,
-  PluginEndpointDiscovery,
-} from '@backstage/backend-common';
+import { getVoidLogger } from '@backstage/backend-common';
 import { Entity } from '@backstage/catalog-model';
 import { Config, ConfigReader } from '@backstage/config';
 import { ObjectsByEntityResponse } from '@backstage/plugin-kubernetes-common';
@@ -50,10 +47,6 @@ describe('KubernetesBuilder', () => {
         clusterLocatorMethods: [{ type: 'config', clusters: [] }],
       },
     });
-    const discovery: PluginEndpointDiscovery = {
-      getBaseUrl: jest.fn().mockResolvedValue('http://test-backend'),
-      getExternalBaseUrl: jest.fn(),
-    };
 
     const clusters: ClusterDetails[] = [
       {
@@ -81,7 +74,6 @@ describe('KubernetesBuilder', () => {
     const { router } = await KubernetesBuilder.createBuilder({
       config,
       logger,
-      discovery,
       catalogApi,
     })
       .setObjectsProvider(kubernetesFanOutHandler)
@@ -179,10 +171,6 @@ describe('KubernetesBuilder', () => {
 
     it('custom service locator', async () => {
       const logger = getVoidLogger();
-      const discovery: PluginEndpointDiscovery = {
-        getBaseUrl: jest.fn().mockResolvedValue('http://test-backend'),
-        getExternalBaseUrl: jest.fn(),
-      };
       const someCluster: ClusterDetails = {
         name: 'some-cluster',
         authProvider: 'serviceAccount',
@@ -258,7 +246,6 @@ describe('KubernetesBuilder', () => {
       const { router } = await KubernetesBuilder.createBuilder({
         logger,
         config,
-        discovery,
         catalogApi,
       })
         .setClusterSupplier(clusterSupplier)
diff --git a/plugins/kubernetes-backend/src/service/KubernetesBuilder.ts b/plugins/kubernetes-backend/src/service/KubernetesBuilder.ts
index 4d7eb3d6f4..304885f3e2 100644
--- a/plugins/kubernetes-backend/src/service/KubernetesBuilder.ts
+++ b/plugins/kubernetes-backend/src/service/KubernetesBuilder.ts
@@ -37,7 +37,6 @@ import {
   KubernetesFanOutHandler,
 } from './KubernetesFanOutHandler';
 import { KubernetesClientBasedFetcher } from './KubernetesFetcher';
-import { PluginEndpointDiscovery } from '@backstage/backend-common';
 import { addResourceRoutesToRouter } from '../routes/resourcesRoutes';
 import { CatalogApi } from '@backstage/catalog-client';
 
@@ -48,7 +47,6 @@ import { CatalogApi } from '@backstage/catalog-client';
 export interface KubernetesEnvironment {
   logger: Logger;
   config: Config;
-  discovery: PluginEndpointDiscovery;
   catalogApi: CatalogApi;
 }
 
@@ -190,7 +188,7 @@ export class KubernetesBuilder {
     const config = this.env.config;
     return getCombinedClusterSupplier(
       config,
-      this.env.discovery,
+      this.env.catalogApi,
       refreshInterval,
     );
   }