diff --git a/plugins/catalog-backend/src/service/CatalogPlugin.ts b/plugins/catalog-backend/src/service/CatalogPlugin.ts
index ed356df5a2..64e1e52494 100644
--- a/plugins/catalog-backend/src/service/CatalogPlugin.ts
+++ b/plugins/catalog-backend/src/service/CatalogPlugin.ts
@@ -35,12 +35,16 @@ class CatalogExtensionPointImpl implements CatalogProcessingExtensionPoint {
   #processors = new Array<CatalogProcessor>();
   #entityProviders = new Array<EntityProvider>();
 
-  addProcessor(processor: CatalogProcessor): void {
-    this.#processors.push(processor);
+  addProcessor(
+    ...processors: Array<CatalogProcessor | Array<CatalogProcessor>>
+  ): void {
+    this.#processors.push(...processors.flat());
   }
 
-  addEntityProvider(provider: EntityProvider): void {
-    this.#entityProviders.push(provider);
+  addEntityProvider(
+    ...providers: Array<EntityProvider | Array<EntityProvider>>
+  ): void {
+    this.#entityProviders.push(...providers.flat());
   }
 
   get processors() {
diff --git a/plugins/catalog-node/api-report.md b/plugins/catalog-node/api-report.md
index 46e3efef99..26617910b9 100644
--- a/plugins/catalog-node/api-report.md
+++ b/plugins/catalog-node/api-report.md
@@ -13,9 +13,13 @@ import { JsonValue } from '@backstage/types';
 // @alpha (undocumented)
 export interface CatalogProcessingExtensionPoint {
   // (undocumented)
-  addEntityProvider(provider: EntityProvider): void;
+  addEntityProvider(
+    ...providers: Array<EntityProvider | Array<EntityProvider>>
+  ): void;
   // (undocumented)
-  addProcessor(processor: CatalogProcessor): void;
+  addProcessor(
+    ...processors: Array<CatalogProcessor | Array<CatalogProcessor>>
+  ): void;
 }
 
 // @alpha (undocumented)
diff --git a/plugins/catalog-node/src/extensions.ts b/plugins/catalog-node/src/extensions.ts
index 80fbd7630f..8dd9d8579a 100644
--- a/plugins/catalog-node/src/extensions.ts
+++ b/plugins/catalog-node/src/extensions.ts
@@ -21,8 +21,12 @@ import { CatalogProcessor } from './api/processor';
  * @alpha
  */
 export interface CatalogProcessingExtensionPoint {
-  addProcessor(processor: CatalogProcessor): void;
-  addEntityProvider(provider: EntityProvider): void;
+  addProcessor(
+    ...processors: Array<CatalogProcessor | Array<CatalogProcessor>>
+  ): void;
+  addEntityProvider(
+    ...providers: Array<EntityProvider | Array<EntityProvider>>
+  ): void;
 }
 
 /**