diff --git a/packages/frontend-plugin-api/report.api.md b/packages/frontend-plugin-api/report.api.md
index 17ef32131c..d95634988c 100644
--- a/packages/frontend-plugin-api/report.api.md
+++ b/packages/frontend-plugin-api/report.api.md
@@ -20,7 +20,6 @@ import { Observable } from '@backstage/types';
 import { PropsWithChildren } from 'react';
 import { ReactNode } from 'react';
 import { RouteRef as RouteRef_2 } from '@backstage/frontend-plugin-api';
-import { SignInPageProps } from '@backstage/core-plugin-api';
 import { z } from 'zod';
 
 // @public
@@ -2013,6 +2012,12 @@ export const SignInPageBlueprint: ExtensionBlueprint<{
   };
 }>;
 
+// @public
+export type SignInPageProps = {
+  onSignInSuccess(identityApi: IdentityApi): void;
+  children?: ReactNode;
+};
+
 // @public
 export interface StorageApi {
   forBucket(name: string): StorageApi;
diff --git a/packages/frontend-plugin-api/src/blueprints/SignInPageBlueprint.tsx b/packages/frontend-plugin-api/src/blueprints/SignInPageBlueprint.tsx
index 5e4112a8d1..b28a0108ca 100644
--- a/packages/frontend-plugin-api/src/blueprints/SignInPageBlueprint.tsx
+++ b/packages/frontend-plugin-api/src/blueprints/SignInPageBlueprint.tsx
@@ -14,10 +14,27 @@
  * limitations under the License.
  */
 
-import { ComponentType, lazy } from 'react';
+import { ComponentType, lazy, ReactNode } from 'react';
 import { createExtensionBlueprint, createExtensionDataRef } from '../wiring';
-import { SignInPageProps } from '@backstage/core-plugin-api';
 import { ExtensionBoundary } from '../components';
+import { IdentityApi } from '../apis';
+
+/**
+ * Props for the `SignInPage` component.
+ *
+ * @public
+ */
+export type SignInPageProps = {
+  /**
+   * Set the IdentityApi on successful sign-in. This should only be called once.
+   */
+  onSignInSuccess(identityApi: IdentityApi): void;
+
+  /**
+   * The children to render.
+   */
+  children?: ReactNode;
+};
 
 const componentDataRef = createExtensionDataRef<
   ComponentType<SignInPageProps>
diff --git a/packages/frontend-plugin-api/src/blueprints/index.ts b/packages/frontend-plugin-api/src/blueprints/index.ts
index c8699b4232..379c8d237b 100644
--- a/packages/frontend-plugin-api/src/blueprints/index.ts
+++ b/packages/frontend-plugin-api/src/blueprints/index.ts
@@ -30,7 +30,10 @@ export {
 export { NavItemBlueprint } from './NavItemBlueprint';
 export { PageBlueprint } from './PageBlueprint';
 export { RouterBlueprint } from './RouterBlueprint';
-export { SignInPageBlueprint } from './SignInPageBlueprint';
+export {
+  type SignInPageProps,
+  SignInPageBlueprint,
+} from './SignInPageBlueprint';
 export { ThemeBlueprint } from './ThemeBlueprint';
 export { TranslationBlueprint } from './TranslationBlueprint';
 export { SwappableComponentBlueprint } from './SwappableComponentBlueprint';
diff --git a/plugins/app/report.api.md b/plugins/app/report.api.md
index 2bcd7550a3..313d09cfee 100644
--- a/plugins/app/report.api.md
+++ b/plugins/app/report.api.md
@@ -20,7 +20,7 @@ import { OverridableExtensionDefinition } from '@backstage/frontend-plugin-api';
 import { OverridableFrontendPlugin } from '@backstage/frontend-plugin-api';
 import { ReactNode } from 'react';
 import { RouteRef } from '@backstage/frontend-plugin-api';
-import { SignInPageProps } from '@backstage/core-plugin-api';
+import { SignInPageProps } from '@backstage/frontend-plugin-api';
 import { SwappableComponentRef } from '@backstage/frontend-plugin-api';
 import { TranslationMessages } from '@backstage/frontend-plugin-api';
 import { TranslationResource } from '@backstage/frontend-plugin-api';