diff --git a/apps/api-gateway/src/controllers/oauth.controller.ts b/apps/api-gateway/src/controllers/oauth.controller.ts
index ca7e3ae..6e4f1e5 100644
--- a/apps/api-gateway/src/controllers/oauth.controller.ts
+++ b/apps/api-gateway/src/controllers/oauth.controller.ts
@@ -5,7 +5,7 @@ import { firstValueFrom } from 'rxjs';
 import { CoreGrpcService } from '../core-grpc.service';
 import { OAuthAuthorizeIncomingDto, OAuthTokenIncomingDto } from '../dto/oauth.dto';
 import { extractBearerToken } from '../auth-token';
-import { appendQueryParams, mergeTokenCredentials, mapTokenResponseToStandard, normalizeAuthorizeQuery, normalizeTokenBody } from '../lib/oauth-params';
+import { appendQueryParams, mapUserInfoToOidc, mergeTokenCredentials, mapTokenResponseToStandard, normalizeAuthorizeQuery, normalizeTokenBody } from '../lib/oauth-params';
 import { resolveFrontendUrl } from '../lib/oauth-issuer';
 import { verifyAccessToken } from '../session-auth';
 
@@ -80,7 +80,8 @@ export class OAuthController {
         clientId: normalized.clientId,
         redirectUri: normalized.redirectUri,
         scope: normalized.scope,
-        state: normalized.state
+        state: normalized.state,
+        nonce: normalized.nonce
       })
     )) as { redirectUrl?: string; code?: string; state?: string };
 
@@ -133,7 +134,20 @@ export class OAuthController {
   @ApiBearerAuth()
   @ApiOperation({ summary: 'OAuth userinfo', description: 'Возвращает профиль пользователя по OAuth access token.' })
   @ApiResponse({ status: 200, description: 'Профиль пользователя получен' })
-  userInfo(@Headers('authorization') authorization?: string) {
-    return this.core.oauth.UserInfo({ accessToken: extractBearerToken(authorization) });
+  async userInfo(@Headers('authorization') authorization?: string) {
+    const result = (await firstValueFrom(
+      this.core.oauth.UserInfo({ accessToken: extractBearerToken(authorization) })
+    )) as {
+      sub?: string;
+      email?: string;
+      phone?: string;
+      name?: string;
+      picture?: string;
+      emailVerified?: boolean;
+      preferredUsername?: string;
+      phoneNumber?: string;
+      phoneNumberVerified?: boolean;
+    };
+    return mapUserInfoToOidc(result);
   }
 }
diff --git a/apps/api-gateway/src/lib/oauth-issuer.ts b/apps/api-gateway/src/lib/oauth-issuer.ts
index 8c23f73..f68f2a8 100644
--- a/apps/api-gateway/src/lib/oauth-issuer.ts
+++ b/apps/api-gateway/src/lib/oauth-issuer.ts
@@ -84,6 +84,21 @@ export function buildOpenIdConfiguration(issuer: string) {
     token_endpoint_auth_methods_supported: ['client_secret_post', 'client_secret_basic'],
     grant_types_supported: ['authorization_code', 'refresh_token'],
     code_challenge_methods_supported: ['S256', 'plain'],
-    claims_supported: ['sub', 'email', 'phone', 'name', 'picture']
+    claims_supported: [
+      'sub',
+      'iss',
+      'aud',
+      'iat',
+      'exp',
+      'auth_time',
+      'nonce',
+      'email',
+      'email_verified',
+      'phone_number',
+      'phone_number_verified',
+      'name',
+      'preferred_username',
+      'picture'
+    ]
   };
 }
diff --git a/apps/api-gateway/src/lib/oauth-params.ts b/apps/api-gateway/src/lib/oauth-params.ts
index 9e18c5d..2415eb0 100644
--- a/apps/api-gateway/src/lib/oauth-params.ts
+++ b/apps/api-gateway/src/lib/oauth-params.ts
@@ -133,6 +133,33 @@ export function mapTokenResponseToStandard(result: {
   };
 }
 
+export function mapUserInfoToOidc(result: {
+  sub?: string;
+  email?: string;
+  phone?: string;
+  name?: string;
+  picture?: string;
+  emailVerified?: boolean;
+  preferredUsername?: string;
+  phoneNumber?: string;
+  phoneNumberVerified?: boolean;
+}) {
+  const claims: Record<string, unknown> = { sub: result.sub };
+  if (result.name) claims.name = result.name;
+  if (result.picture) claims.picture = result.picture;
+  if (result.preferredUsername) claims.preferred_username = result.preferredUsername;
+  if (result.email) {
+    claims.email = result.email;
+    if (result.emailVerified !== undefined) claims.email_verified = result.emailVerified;
+  }
+  const phoneNumber = result.phoneNumber ?? result.phone;
+  if (phoneNumber) {
+    claims.phone_number = phoneNumber;
+    if (result.phoneNumberVerified !== undefined) claims.phone_number_verified = result.phoneNumberVerified;
+  }
+  return claims;
+}
+
 export function mergeTokenCredentials(
   body: NormalizedTokenBody,
   authorization?: string
diff --git a/apps/sso-core/prisma/schema.prisma b/apps/sso-core/prisma/schema.prisma
index e7e2102..98d77b3 100644
--- a/apps/sso-core/prisma/schema.prisma
+++ b/apps/sso-core/prisma/schema.prisma
@@ -266,6 +266,7 @@ model OAuthAuthorizationCode {
   clientId    String
   redirectUri String
   scopes      String[]
+  nonce       String?
   expiresAt   DateTime
   consumedAt  DateTime?
   createdAt   DateTime    @default(now())
diff --git a/apps/sso-core/src/domain/auth-grpc.controller.ts b/apps/sso-core/src/domain/auth-grpc.controller.ts
index 9686d8f..6fa6b4c 100644
--- a/apps/sso-core/src/domain/auth-grpc.controller.ts
+++ b/apps/sso-core/src/domain/auth-grpc.controller.ts
@@ -773,7 +773,14 @@ export class AuthGrpcController {
   }
 
   @GrpcMethod('OAuthCoreService', 'Authorize')
-  authorize(command: { userId: string; clientId: string; redirectUri: string; scope: string; state?: string }) {
+  authorize(command: {
+    userId: string;
+    clientId: string;
+    redirectUri: string;
+    scope: string;
+    state?: string;
+    nonce?: string;
+  }) {
     return this.oauthCore.authorize(command);
   }
 
diff --git a/apps/sso-core/src/domain/oauth-core.service.ts b/apps/sso-core/src/domain/oauth-core.service.ts
index 5497b27..e846a35 100644
--- a/apps/sso-core/src/domain/oauth-core.service.ts
+++ b/apps/sso-core/src/domain/oauth-core.service.ts
@@ -6,6 +6,28 @@ import { PrismaService } from '../infra/prisma.service';
 import { OAuthIssuerService } from './oauth-issuer.service';
 import { assertHumanAccount, HUMAN_USER_WHERE } from './system-account.util';
 
+type OAuthUser = {
+  id: string;
+  email: string | null;
+  phone: string | null;
+  displayName: string;
+  username: string | null;
+  avatarUrl: string | null;
+  isVerified: boolean;
+};
+
+type OidcScopeClaims = {
+  sub: string;
+  name?: string;
+  picture?: string;
+  preferredUsername?: string;
+  email?: string;
+  emailVerified?: boolean;
+  phone?: string;
+  phoneNumber?: string;
+  phoneNumberVerified?: boolean;
+};
+
 @Injectable()
 export class OAuthCoreService {
   constructor(
@@ -15,7 +37,14 @@ export class OAuthCoreService {
     private readonly oauthIssuer: OAuthIssuerService
   ) {}
 
-  async authorize(command: { userId: string; clientId: string; redirectUri: string; scope: string; state?: string }) {
+  async authorize(command: {
+    userId: string;
+    clientId: string;
+    redirectUri: string;
+    scope: string;
+    state?: string;
+    nonce?: string;
+  }) {
     const user = await this.prisma.user.findFirst({
       where: { id: command.userId, deletedAt: null, status: 'ACTIVE', ...HUMAN_USER_WHERE }
     });
@@ -37,6 +66,7 @@ export class OAuthCoreService {
         clientId: client.id,
         redirectUri: command.redirectUri,
         scopes: command.scope.split(' ').filter(Boolean),
+        nonce: command.nonce ?? null,
         expiresAt: new Date(Date.now() + 5 * 60_000)
       }
     });
@@ -47,26 +77,50 @@ export class OAuthCoreService {
     return { redirectUrl: url.toString(), code, state: command.state };
   }
 
-  async token(command: { grantType: string; code?: string; refreshToken?: string; clientId: string; clientSecret?: string; redirectUri?: string }) {
+  async token(command: {
+    grantType: string;
+    code?: string;
+    refreshToken?: string;
+    clientId: string;
+    clientSecret?: string;
+    redirectUri?: string;
+  }) {
     const client = await this.prisma.oAuthClient.findUnique({ where: { clientId: command.clientId } });
     if (!client?.isActive) throw new UnauthorizedException('OAuth приложение не найдено');
-    if (client.clientSecret && client.clientSecret !== command.clientSecret) throw new UnauthorizedException('Неверный client_secret');
+    if (client.clientSecret && client.clientSecret !== command.clientSecret) {
+      throw new UnauthorizedException('Неверный client_secret');
+    }
 
     if (command.grantType === 'authorization_code') {
       if (!command.code || !command.redirectUri) throw new BadRequestException('Передайте code и redirect_uri');
-      const authCode = await this.prisma.oAuthAuthorizationCode.findUnique({ where: { code: command.code }, include: { user: true } });
-      if (!authCode || authCode.consumedAt || authCode.expiresAt < new Date() || authCode.redirectUri !== command.redirectUri || authCode.clientId !== client.id) {
+      const authCode = await this.prisma.oAuthAuthorizationCode.findUnique({
+        where: { code: command.code },
+        include: { user: true }
+      });
+      if (
+        !authCode ||
+        authCode.consumedAt ||
+        authCode.expiresAt < new Date() ||
+        authCode.redirectUri !== command.redirectUri ||
+        authCode.clientId !== client.id
+      ) {
         throw new UnauthorizedException('Код авторизации недействителен');
       }
       await this.prisma.oAuthAuthorizationCode.update({ where: { id: authCode.id }, data: { consumedAt: new Date() } });
       assertHumanAccount(authCode.user, { asAuth: true });
-      return this.issueOAuthTokens(authCode.user.id, client.clientId, authCode.scopes);
+      return this.issueOAuthTokens(authCode.user.id, client.clientId, authCode.scopes, authCode.nonce ?? undefined);
     }
 
     if (command.grantType === 'refresh_token') {
       if (!command.refreshToken) throw new BadRequestException('Передайте refresh_token');
-      const payload = await this.jwt.verifyAsync<{ sub: string; aud: string; scopes: string[]; typ: string }>(command.refreshToken, { secret: this.config.getOrThrow<string>('JWT_REFRESH_SECRET') });
-      if (payload.typ !== 'refresh_token' || payload.aud !== client.clientId) throw new UnauthorizedException('Refresh token недействителен');
+      const issuer = await this.oauthIssuer.resolveIssuer();
+      const payload = await this.jwt.verifyAsync<{ sub: string; aud: string; scopes: string[]; typ: string }>(
+        command.refreshToken,
+        { secret: this.config.getOrThrow<string>('JWT_REFRESH_SECRET'), issuer }
+      );
+      if (payload.typ !== 'refresh_token' || payload.aud !== client.clientId) {
+        throw new UnauthorizedException('Refresh token недействителен');
+      }
       return this.issueOAuthTokens(payload.sub, client.clientId, payload.scopes ?? []);
     }
 
@@ -74,21 +128,106 @@ export class OAuthCoreService {
   }
 
   async userInfo(accessToken: string) {
-    const payload = await this.jwt.verifyAsync<{ sub: string }>(accessToken, { secret: this.config.getOrThrow<string>('JWT_ACCESS_SECRET') });
-    const user = await this.prisma.user.findUnique({ where: { id: payload.sub } });
+    const issuer = await this.oauthIssuer.resolveIssuer();
+    let payload: { sub: string; scopes?: string[]; typ?: string };
+    try {
+      payload = await this.jwt.verifyAsync(accessToken, {
+        secret: this.config.getOrThrow<string>('JWT_ACCESS_SECRET'),
+        issuer
+      });
+    } catch {
+      throw new UnauthorizedException('Токен доступа недействителен');
+    }
+
+    if (payload.typ && payload.typ !== 'access_token') {
+      throw new UnauthorizedException('Неверный тип токена');
+    }
+
+    const user = await this.prisma.user.findFirst({
+      where: { id: payload.sub, deletedAt: null, status: 'ACTIVE', ...HUMAN_USER_WHERE }
+    });
     if (!user) throw new UnauthorizedException('Пользователь не найден');
     assertHumanAccount(user, { asAuth: true });
-    return { sub: user.id, email: user.email, phone: user.phone, name: user.displayName, picture: user.avatarUrl };
+
+    const scopes = this.parseScopes(payload.scopes ?? ['openid', 'profile']);
+    return this.buildUserClaims(user, scopes);
   }
 
-  private async issueOAuthTokens(userId: string, clientId: string, scopes: string[]) {
+  private parseScopes(scopes: string[] | undefined) {
+    return new Set((scopes ?? []).filter(Boolean));
+  }
+
+  private buildUserClaims(user: OAuthUser, scopes: Set<string>): OidcScopeClaims {
+    const claims: OidcScopeClaims = { sub: user.id };
+
+    if (scopes.has('profile')) {
+      claims.name = user.displayName;
+      claims.preferredUsername = user.username ?? user.displayName;
+      if (user.avatarUrl) {
+        claims.picture = user.avatarUrl;
+      }
+    }
+
+    if (scopes.has('email') && user.email) {
+      claims.email = user.email;
+      claims.emailVerified = user.isVerified;
+    }
+
+    if (scopes.has('phone') && user.phone) {
+      claims.phone = user.phone;
+      claims.phoneNumber = user.phone;
+      claims.phoneNumberVerified = user.isVerified;
+    }
+
+    return claims;
+  }
+
+  private async issueOAuthTokens(userId: string, clientId: string, scopes: string[], nonce?: string) {
     const user = await this.prisma.user.findUnique({ where: { id: userId } });
     if (!user) throw new UnauthorizedException('Пользователь не найден');
     assertHumanAccount(user, { asAuth: true });
+
     const issuer = await this.oauthIssuer.resolveIssuer();
-    const accessToken = await this.jwt.signAsync({ sub: userId, aud: clientId, scopes, typ: 'access_token' }, { secret: this.config.getOrThrow<string>('JWT_ACCESS_SECRET'), expiresIn: '15m', issuer });
-    const refreshToken = await this.jwt.signAsync({ sub: userId, aud: clientId, scopes, typ: 'refresh_token' }, { secret: this.config.getOrThrow<string>('JWT_REFRESH_SECRET'), expiresIn: '30d', issuer });
-    const idToken = await this.jwt.signAsync({ sub: userId, aud: clientId }, { secret: this.config.getOrThrow<string>('JWT_ACCESS_SECRET'), expiresIn: '15m', issuer });
+    const scopeSet = this.parseScopes(scopes);
+    const now = Math.floor(Date.now() / 1000);
+    const profileClaims = this.buildUserClaims(user, scopeSet);
+
+    const accessToken = await this.jwt.signAsync(
+      { sub: userId, aud: clientId, scopes, typ: 'access_token' },
+      { secret: this.config.getOrThrow<string>('JWT_ACCESS_SECRET'), expiresIn: '15m', issuer }
+    );
+    const refreshToken = await this.jwt.signAsync(
+      { sub: userId, aud: clientId, scopes, typ: 'refresh_token' },
+      { secret: this.config.getOrThrow<string>('JWT_REFRESH_SECRET'), expiresIn: '30d', issuer }
+    );
+
+    const idTokenClaims: Record<string, unknown> = {
+      sub: userId,
+      aud: clientId,
+      iat: now,
+      auth_time: now
+    };
+    if (nonce) {
+      idTokenClaims.nonce = nonce;
+    }
+    if (profileClaims.name) idTokenClaims.name = profileClaims.name;
+    if (profileClaims.preferredUsername) idTokenClaims.preferred_username = profileClaims.preferredUsername;
+    if (profileClaims.picture) idTokenClaims.picture = profileClaims.picture;
+    if (profileClaims.email) {
+      idTokenClaims.email = profileClaims.email;
+      idTokenClaims.email_verified = profileClaims.emailVerified ?? false;
+    }
+    if (profileClaims.phoneNumber) {
+      idTokenClaims.phone_number = profileClaims.phoneNumber;
+      idTokenClaims.phone_number_verified = profileClaims.phoneNumberVerified ?? false;
+    }
+
+    const idToken = await this.jwt.signAsync(idTokenClaims, {
+      secret: this.config.getOrThrow<string>('JWT_ACCESS_SECRET'),
+      expiresIn: '15m',
+      issuer
+    });
+
     return { accessToken, tokenType: 'Bearer', expiresIn: 900, refreshToken, idToken };
   }
 }
diff --git a/shared/proto/identity.proto b/shared/proto/identity.proto
index c4e2cb2..73b38f6 100644
--- a/shared/proto/identity.proto
+++ b/shared/proto/identity.proto
@@ -44,6 +44,7 @@ message AuthorizeRequest {
   string redirectUri = 3;
   string scope = 4;
   optional string state = 5;
+  optional string nonce = 6;
 }
 
 message AuthorizeResponse {
@@ -79,6 +80,10 @@ message UserInfoResponse {
   optional string phone = 3;
   string name = 4;
   optional string picture = 5;
+  optional bool email_verified = 6;
+  optional string preferred_username = 7;
+  optional string phone_number = 8;
+  optional bool phone_number_verified = 9;
 }
 
 message SendOtpRequest {