diff --git a/packages/backend/src/server/api/endpoints/admin/show-user.ts b/packages/backend/src/server/api/endpoints/admin/show-user.ts
index f49d2a0966..9c00ab8304 100644
--- a/packages/backend/src/server/api/endpoints/admin/show-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/show-user.ts
@@ -27,7 +27,8 @@ export const paramDef = {
 
 // eslint-disable-next-line import/no-default-export
 @Injectable()
-export default class extends Endpoint<typeof meta, typeof paramDef> {
+export default class extends Endpoint<'admin/show-user'> {
+	name = 'admin/show-user' as const;
 	constructor(
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
@@ -41,7 +42,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 		private roleService: RoleService,
 		private roleEntityService: RoleEntityService,
 	) {
-		super(meta, paramDef, async (ps, me) => {
+		super(async (ps, me) => {
 			const [user, profile] = await Promise.all([
 				this.usersRepository.findOneBy({ id: ps.userId }),
 				this.userProfilesRepository.findOneBy({ userId: ps.userId }),
diff --git a/packages/misskey-js/src/endpoints.ts b/packages/misskey-js/src/endpoints.ts
index d6237b3dcf..b602568562 100644
--- a/packages/misskey-js/src/endpoints.ts
+++ b/packages/misskey-js/src/endpoints.ts
@@ -1651,7 +1651,106 @@ export const endpoints = {
 		}],
 	},
 	'admin/show-user': {
-
+		tags: ['admin'],
+	
+		requireCredential: true,
+		requireModerator: true,
+	
+		defines: [{
+			req: {
+				type: 'object',
+				properties: {
+					userId: { type: 'string', format: 'misskey:id' },
+				},
+				required: ['userId'],
+			},
+			res: {
+				type: 'object',
+				properties: {
+					email: { type: ['string', 'null'] },
+					emailVerified: { type: 'boolean' },
+					autoAcceptFollowed: { type: 'boolean' },
+					noCrawle: { type: 'boolean' },
+					preventAiLearning: { type: 'boolean' },
+					alwaysMarkNsfw: { type: 'boolean' },
+					autoSensitive: { type: 'boolean' },
+					carefulBot: { type: 'boolean' },
+					injectFeaturedNote: { type: 'boolean' },
+					receiveAnnouncementEmail: { type: 'boolean' },
+					mutedWords: {
+						type: 'array',
+						items: {
+							type: 'array',
+							items: {
+								type: 'string',
+							},
+						},
+					},
+					mutedInstances: {
+						type: 'array',
+						items: {
+							type: 'string',
+						},
+					},
+					mutingNotificationTypes: {
+						type: 'array',
+						items: {
+							$ref: 'https://misskey-hub.net/api/schemas/NotificationType',
+						},
+					},
+					isModerator: { type: 'boolean' },
+					isSilenced: { type: 'boolean' },
+					isSuspended: { type: 'boolean' },
+					lastActiveDate: {
+						oneOf: [{
+							type: 'string',
+							format: 'date-time',
+						}, {
+							type: 'null',
+						}],
+					},
+					moderationNote: { type: 'string' },
+					signins: {
+						type: 'array',
+						items: {
+							$ref: 'https://misskey-hub.net/api/schemas/SignIn',
+						}
+					},
+					policies: {
+						type: 'object',
+					},
+					roles: {
+						type: 'array',
+						items: {
+							$ref: 'https://misskey-hub.net/api/schemas/Role',
+						}
+					},
+				},
+				required: [
+					'email',
+					'emailVerified',
+					'autoAcceptFollowed',
+					'noCrawle',
+					'preventAiLearning',
+					'alwaysMarkNsfw',
+					'autoSensitive',
+					'carefulBot',
+					'injectFeaturedNote',
+					'receiveAnnouncementEmail',
+					'mutedWords',
+					'mutedInstances',
+					'mutingNotificationTypes',
+					'isModerator',
+					'isSilenced',
+					'isSuspended',
+					'lastActiveDate',
+					'moderationNote',
+					'signins',
+					'policies',
+					'roles',
+				],
+			}
+		}],
 	},
 } as const satisfies { [x: string]: IEndpointMeta; };
 
diff --git a/packages/misskey-js/src/entities.ts b/packages/misskey-js/src/entities.ts
index b1c6b7d6ac..d71731cf57 100644
--- a/packages/misskey-js/src/entities.ts
+++ b/packages/misskey-js/src/entities.ts
@@ -107,7 +107,7 @@ export type DetailedInstanceMetadata = LiteInstanceMetadata & {
 
 export type InstanceMetadata = LiteInstanceMetadata | DetailedInstanceMetadata;
 
-export type ServerInfo = Selialized<Packed<'ServerInfo'>>;
+export type ServerInfo = Serialized<Packed<'ServerInfo'>>;
 
 export type Stats = {
 	notesCount: number;
diff --git a/packages/misskey-js/src/schemas.ts b/packages/misskey-js/src/schemas.ts
index d4557df297..e7699fc2a0 100644
--- a/packages/misskey-js/src/schemas.ts
+++ b/packages/misskey-js/src/schemas.ts
@@ -9,6 +9,7 @@ import {
 	packedUserSchema,
 } from './schemas/user.js';
 import {
+	notificationTypeSchema,
 	packedNotificationSchema,
 	packedNotificationStrictSchema,
 } from './schemas/notification.js';
@@ -74,6 +75,7 @@ export const refs = {
 	Note: packedNoteSchema,
 	NoteReaction: packedNoteReactionSchema,
 	NoteFavorite: packedNoteFavoriteSchema,
+	NotificationType: notificationTypeSchema,
 	Notification: packedNotificationSchema,
 	NotificationStrict: packedNotificationStrictSchema,
 	DriveFile: packedDriveFileSchema,
diff --git a/packages/misskey-js/src/schemas/notification.ts b/packages/misskey-js/src/schemas/notification.ts
index d01c8579c8..5af92b3e9e 100644
--- a/packages/misskey-js/src/schemas/notification.ts
+++ b/packages/misskey-js/src/schemas/notification.ts
@@ -1,6 +1,11 @@
 import type { JSONSchema7Definition } from 'schema-type';
 import { ACHIEVEMENT_TYPES, notificationTypes } from '../consts';
 
+export const notificationTypeSchema = {
+	$id: 'https://misskey-hub.net/api/schemas/NotificationTypes',
+	enum: [...notificationTypes],
+} as const satisfies JSONSchema7Definition;
+
 export const packedNotificationSchema = {
 	$id: 'https://misskey-hub.net/api/schemas/Notification',
 	type: 'object',
@@ -10,10 +15,7 @@ export const packedNotificationSchema = {
 			type: 'string',
 			format: 'date-time',
 		},
-		type: {
-			type: 'string',
-			enum: [...notificationTypes],
-		},
+		type: { $ref: 'https://misskey-hub.net/api/schemas/NotificationType' },
 		userId: {
 			oneOf: [
 				{ $ref: 'https://misskey-hub.net/api/schemas/Id' },