diff --git a/plugins/scaffolder/api-report.md b/plugins/scaffolder/api-report.md
index 23b374541b..824b56daf0 100644
--- a/plugins/scaffolder/api-report.md
+++ b/plugins/scaffolder/api-report.md
@@ -15,7 +15,9 @@ import { Extension } from '@backstage/core-plugin-api';
 import { ExternalRouteRef } from '@backstage/core-plugin-api';
 import { FetchApi } from '@backstage/core-plugin-api';
 import { FieldProps } from '@rjsf/core';
+import { FieldProps as FieldProps_2 } from '@rjsf/utils';
 import { FieldValidation } from '@rjsf/core';
+import { FieldValidation as FieldValidation_2 } from '@rjsf/utils';
 import type { FormProps } from '@rjsf/core';
 import { IdentityApi } from '@backstage/core-plugin-api';
 import { JsonObject } from '@backstage/types';
@@ -29,6 +31,16 @@ import { ScmIntegrationRegistry } from '@backstage/integration';
 import { TaskSpec } from '@backstage/plugin-scaffolder-common';
 import { TaskStep } from '@backstage/plugin-scaffolder-common';
 import { TemplateEntityV1beta3 } from '@backstage/plugin-scaffolder-common';
+import { UIOptionsType } from '@rjsf/utils';
+import { UiSchema } from '@rjsf/utils';
+
+// @alpha
+export function createNextScaffolderFieldExtension<
+  TReturnValue = unknown,
+  TInputProps extends UIOptionsType = {},
+>(
+  options: FieldExtensionOptions<TReturnValue, TInputProps>,
+): Extension<NextFieldExtensionComponentProps<TReturnValue, TInputProps>>;
 
 // @public
 export function createScaffolderFieldExtension<
@@ -155,6 +167,38 @@ export type LogEvent = {
   taskId: string;
 };
 
+// @alpha
+export type NextCustomFieldValidator<TFieldReturnValue> = (
+  data: TFieldReturnValue,
+  field: FieldValidation_2,
+  context: {
+    apiHolder: ApiHolder;
+  },
+) => void | Promise<void>;
+
+// @alpha
+export interface NextFieldExtensionComponentProps<
+  TFieldReturnValue,
+  TUiOptions = {},
+> extends PropsWithChildren<FieldProps_2<TFieldReturnValue>> {
+  // (undocumented)
+  uiSchema?: UiSchema<TFieldReturnValue> & {
+    'ui:options'?: TUiOptions & UIOptionsType;
+  };
+}
+
+// @alpha
+export type NextFieldExtensionOptions<
+  TFieldReturnValue = unknown,
+  TInputProps = unknown,
+> = {
+  name: string;
+  component: (
+    props: NextFieldExtensionComponentProps<TFieldReturnValue, TInputProps>,
+  ) => JSX.Element | null;
+  validation?: NextCustomFieldValidator<TFieldReturnValue>;
+};
+
 // @alpha
 export type NextRouterProps = {
   components?: {
diff --git a/plugins/scaffolder/src/index.ts b/plugins/scaffolder/src/index.ts
index c16e12beb5..e68eece8e5 100644
--- a/plugins/scaffolder/src/index.ts
+++ b/plugins/scaffolder/src/index.ts
@@ -59,11 +59,17 @@ export {
   RepoUrlPickerFieldExtension,
   ScaffolderPage,
   scaffolderPlugin,
-  NextScaffolderPage,
 } from './plugin';
 export * from './components';
 export type { TaskPageProps } from './components/TaskPage';
 
 /** next exports */
+export { NextScaffolderPage } from './plugin';
 export type { NextRouterProps } from './next';
 export type { TemplateGroupFilter } from './next';
+export {
+  createNextScaffolderFieldExtension,
+  type NextCustomFieldValidator,
+  type NextFieldExtensionOptions,
+  type NextFieldExtensionComponentProps,
+} from './extensions';