diff --git a/packages/backend-test-utils/report.api.md b/packages/backend-test-utils/report.api.md
index c74d975920..a9377e70fe 100644
--- a/packages/backend-test-utils/report.api.md
+++ b/packages/backend-test-utils/report.api.md
@@ -3,8 +3,11 @@
 > Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
 
 ```ts
+import { ActionsRegistryActionOptions } from '@backstage/backend-plugin-api';
 import { ActionsRegistryService } from '@backstage/backend-plugin-api';
 import { ActionsService } from '@backstage/backend-plugin-api';
+import { ActionsServiceAction } from '@backstage/backend-plugin-api';
+import { AnyZodObject } from 'zod';
 import { AuditorService } from '@backstage/backend-plugin-api';
 import { AuthorizeResult } from '@backstage/plugin-permission-common';
 import { AuthService } from '@backstage/backend-plugin-api';
@@ -26,6 +29,7 @@ import { ExtensionPoint } from '@backstage/backend-plugin-api';
 import { HttpAuthService } from '@backstage/backend-plugin-api';
 import { HttpRouterService } from '@backstage/backend-plugin-api';
 import { JsonObject } from '@backstage/types';
+import { JsonValue } from '@backstage/types';
 import Keyv from 'keyv';
 import { Knex } from 'knex';
 import { LifecycleService } from '@backstage/backend-plugin-api';
@@ -56,6 +60,33 @@ export interface CreateMockDirectoryOptions {
   mockOsTmpDir?: boolean;
 }
 
+// @public
+export class MockActionsRegistry
+  implements ActionsRegistryService, ActionsService
+{
+  // (undocumented)
+  readonly actions: Map<string, ActionsRegistryActionOptions<any, any>>;
+  // (undocumented)
+  static create(opts: { logger: LoggerService }): MockActionsRegistry;
+  // (undocumented)
+  invoke(opts: {
+    id: string;
+    input?: JsonObject;
+    credentials?: BackstageCredentials;
+  }): Promise<{
+    output: JsonValue;
+  }>;
+  // (undocumented)
+  list(): Promise<{
+    actions: ActionsServiceAction[];
+  }>;
+  // (undocumented)
+  register<
+    TInputSchema extends AnyZodObject,
+    TOutputSchema extends AnyZodObject,
+  >(options: ActionsRegistryActionOptions<TInputSchema, TOutputSchema>): void;
+}
+
 // @public (undocumented)
 export namespace mockCredentials {
   export function limitedUser(
@@ -174,6 +205,10 @@ export namespace mockServices {
       ) => ServiceMock<ActionsService>;
   }
   // (undocumented)
+  export function actionsRegistry(options?: {
+    logger: LoggerService;
+  }): MockActionsRegistry;
+  // (undocumented)
   export namespace actionsRegistry {
     const // (undocumented)
       factory: () => ServiceFactory<
diff --git a/packages/backend-test-utils/src/next/services/MockActionsRegistry.ts b/packages/backend-test-utils/src/next/services/MockActionsRegistry.ts
index 72f70e5f2b..cbb695fffb 100644
--- a/packages/backend-test-utils/src/next/services/MockActionsRegistry.ts
+++ b/packages/backend-test-utils/src/next/services/MockActionsRegistry.ts
@@ -27,6 +27,39 @@ import { z, AnyZodObject } from 'zod';
 import zodToJsonSchema from 'zod-to-json-schema';
 import { mockCredentials } from './mockCredentials';
 
+/**
+ * A mock implementation of the ActionsRegistryService and ActionsService that can be used in tests.
+ *
+ * This is useful for testing actions that are registered with the ActionsRegistryService and ActionsService.
+ *
+ * The plugin ID is hardcoded to `testing` in the mock implementation.
+ *
+ * @example
+ * ```ts
+ * const actionsRegistry = mockServices.actionsRegistry();
+ *
+ * actionsRegistry.register({
+ *   name: 'test',
+ *   title: 'Test',
+ *   description: 'Test',
+ *   schema: {
+ *     input: z.object({ name: z.string() }),
+ *     output: z.object({ name: z.string() }),
+ *   },
+ *   action: async ({ input }) => ({ output: { name: input.name } }),
+ * });
+ *
+ *
+ * const result = await actionsRegistry.invoke({
+ *   id: 'testing:test',
+ *   input: { name: 'test' },
+ * });
+ *
+ * expect(result).toEqual({ output: { name: 'test' } });
+ * ```
+ *
+ * @public
+ */
 export class MockActionsRegistry
   implements ActionsRegistryService, ActionsService
 {
diff --git a/packages/backend-test-utils/src/next/services/index.ts b/packages/backend-test-utils/src/next/services/index.ts
index 7c3949e207..347c50aaee 100644
--- a/packages/backend-test-utils/src/next/services/index.ts
+++ b/packages/backend-test-utils/src/next/services/index.ts
@@ -15,3 +15,4 @@
  */
 export { mockServices, type ServiceMock } from './mockServices';
 export { mockCredentials } from './mockCredentials';
+export { type MockActionsRegistry } from './MockActionsRegistry';