diff --git a/apps/web-ele/src/api/fengling/index.ts b/apps/web-ele/src/api/fengling/index.ts
new file mode 100644
index 0000000..890049a
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/index.ts
@@ -0,0 +1,6 @@
+export * from './log';
+export * from './oauth';
+export * from './role';
+export * from './tenant';
+export * from './user';
+export * from './typings';
diff --git a/apps/web-ele/src/api/fengling/log.ts b/apps/web-ele/src/api/fengling/log.ts
new file mode 100644
index 0000000..a81ae82
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/log.ts
@@ -0,0 +1,35 @@
+import type { FenglingApi } from './typings';
+
+import { requestClient } from '#/api/request';
+
+export namespace LogApi {
+  export async function getAuditLogList(params: {
+    page?: number
+    pageSize?: number
+    userId?: number
+    action?: string
+    resourceType?: string
+    startDate?: string
+    endDate?: string
+  }) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.Log.AuditLog>>(
+      '/logs/audit',
+      { params }
+    );
+  }
+
+  export async function getAccessLogList(params: {
+    page?: number
+    pageSize?: number
+    userId?: number
+    path?: string
+    statusCode?: number
+    startDate?: string
+    endDate?: string
+  }) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.Log.AccessLog>>(
+      '/logs/access',
+      { params }
+    );
+  }
+}
diff --git a/apps/web-ele/src/api/fengling/oauth.ts b/apps/web-ele/src/api/fengling/oauth.ts
new file mode 100644
index 0000000..9252b3c
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/oauth.ts
@@ -0,0 +1,45 @@
+import type { FenglingApi } from './typings';
+
+import { requestClient } from '#/api/request';
+
+export namespace OAuthApi {
+  export async function getClientList(params: {
+    page?: number
+    pageSize?: number
+    keyword?: string
+    status?: string
+  }) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.OAuth.OAuthClient>>(
+      '/oauth/clients',
+      { params }
+    );
+  }
+
+  export async function getClientById(id: number) {
+    return requestClient.get<FenglingApi.OAuth.OAuthClient>(`/oauth/clients/${id}`);
+  }
+
+  export async function createClient(data: FenglingApi.OAuth.CreateOAuthClientDto) {
+    return requestClient.post<FenglingApi.OAuth.OAuthClient>('/oauth/clients', data);
+  }
+
+  export async function updateClient(id: number, data: FenglingApi.OAuth.UpdateOAuthClientDto) {
+    return requestClient.put<FenglingApi.OAuth.OAuthClient>(`/oauth/clients/${id}`, data);
+  }
+
+  export async function deleteClient(id: number) {
+    return requestClient.delete(`/oauth/clients/${id}`);
+  }
+
+  export async function regenerateClientSecret(id: number) {
+    return requestClient.post(`/oauth/clients/${id}/regenerate-secret`);
+  }
+
+  export async function activateClient(id: number) {
+    return requestClient.post(`/oauth/clients/${id}/activate`);
+  }
+
+  export async function deactivateClient(id: number) {
+    return requestClient.post(`/oauth/clients/${id}/deactivate`);
+  }
+}
diff --git a/apps/web-ele/src/api/fengling/role.ts b/apps/web-ele/src/api/fengling/role.ts
new file mode 100644
index 0000000..e834b7a
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/role.ts
@@ -0,0 +1,36 @@
+import type { FenglingApi } from './typings';
+
+import { requestClient } from '#/api/request';
+
+export namespace RoleApi {
+  export async function getRoleList(params: {
+    page?: number
+    pageSize?: number
+    keyword?: string
+  }) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.Role.Role>>(
+      '/roles',
+      { params }
+    );
+  }
+
+  export async function getRoleById(id: number) {
+    return requestClient.get<FenglingApi.Role.Role>(`/roles/${id}`);
+  }
+
+  export async function createRole(data: FenglingApi.Role.CreateRoleDto) {
+    return requestClient.post<FenglingApi.Role.Role>('/roles', data);
+  }
+
+  export async function updateRole(id: number, data: FenglingApi.Role.UpdateRoleDto) {
+    return requestClient.put<FenglingApi.Role.Role>(`/roles/${id}`, data);
+  }
+
+  export async function deleteRole(id: number) {
+    return requestClient.delete(`/roles/${id}`);
+  }
+
+  export async function getAllRoles() {
+    return requestClient.get<FenglingApi.Role.Role[]>('/roles/all');
+  }
+}
diff --git a/apps/web-ele/src/api/fengling/tenant.ts b/apps/web-ele/src/api/fengling/tenant.ts
new file mode 100644
index 0000000..82d2931
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/tenant.ts
@@ -0,0 +1,55 @@
+import type { FenglingApi } from './typings';
+
+import { requestClient } from '#/api/request';
+
+export namespace TenantApi {
+  export async function getTenantList(params: {
+    page?: number
+    pageSize?: number
+    keyword?: string
+    status?: string
+  }) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.Tenant.Tenant>>(
+      '/tenants',
+      { params }
+    );
+  }
+
+  export async function getTenantById(id: number) {
+    return requestClient.get<FenglingApi.Tenant.Tenant>(`/tenants/${id}`);
+  }
+
+  export async function createTenant(data: FenglingApi.Tenant.CreateTenantDto) {
+    return requestClient.post<FenglingApi.Tenant.Tenant>('/tenants', data);
+  }
+
+  export async function updateTenant(id: number, data: FenglingApi.Tenant.UpdateTenantDto) {
+    return requestClient.put<FenglingApi.Tenant.Tenant>(`/tenants/${id}`, data);
+  }
+
+  export async function deleteTenant(id: number) {
+    return requestClient.delete(`/tenants/${id}`);
+  }
+
+  export async function activateTenant(id: number) {
+    return requestClient.post(`/tenants/${id}/activate`);
+  }
+
+  export async function deactivateTenant(id: number) {
+    return requestClient.post(`/tenants/${id}/deactivate`);
+  }
+
+  export async function extendTenantExpiry(id: number, expiresAt: string) {
+    return requestClient.post(`/tenants/${id}/extend`, { expiresAt });
+  }
+
+  export async function getTenantUsers(id: number) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.User.User>>(
+      `/tenants/${id}/users`
+    );
+  }
+
+  export async function getTenantStatistics(id: number) {
+    return requestClient.get(`/tenants/${id}/statistics`);
+  }
+}
diff --git a/apps/web-ele/src/api/fengling/typings.d.ts b/apps/web-ele/src/api/fengling/typings.d.ts
new file mode 100644
index 0000000..af83075
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/typings.d.ts
@@ -0,0 +1,177 @@
+export namespace FenglingApi {
+  export namespace Tenant {
+    export interface Tenant {
+      id: number
+      tenantId: string
+      name: string
+      contactName: string
+      contactEmail: string
+      contactPhone: string
+      maxUsers?: number
+      userCount: number
+      status: 'active' | 'inactive' | 'expired'
+      expiresAt?: string
+      description?: string
+      createdAt: string
+    }
+
+    export interface CreateTenantDto {
+      tenantId: string
+      name: string
+      contactName: string
+      contactEmail: string
+      contactPhone: string
+      maxUsers?: number
+      expiresAt?: string
+      status: 'active' | 'inactive'
+      description?: string
+    }
+
+    export interface UpdateTenantDto {
+      name?: string
+      contactName?: string
+      contactEmail?: string
+      contactPhone?: string
+      maxUsers?: number
+      expiresAt?: string
+      status?: 'active' | 'inactive'
+      description?: string
+    }
+  }
+
+  export namespace User {
+    export interface User {
+      id: number
+      userName: string
+      email: string
+      realName?: string
+      tenantId?: string
+      roles: string[]
+      isActive: boolean
+      createdAt: string
+    }
+
+    export interface CreateUserDto {
+      userName: string
+      email: string
+      realName?: string
+      password: string
+      tenantId?: string
+      roleIds: number[]
+    }
+
+    export interface UpdateUserDto {
+      email?: string
+      realName?: string
+      isActive?: boolean
+      roleIds?: number[]
+    }
+
+    export interface ResetPasswordDto {
+      newPassword: string
+    }
+  }
+
+  export namespace Role {
+    export interface Role {
+      id: number
+      name: string
+      displayName: string
+      description?: string
+      permissions: string[]
+      createdAt: string
+    }
+
+    export interface CreateRoleDto {
+      name: string
+      displayName: string
+      description?: string
+      permissions: string[]
+    }
+
+    export interface UpdateRoleDto {
+      displayName?: string
+      description?: string
+      permissions?: string[]
+    }
+  }
+
+  export namespace OAuth {
+    export interface OAuthClient {
+      id: number
+      clientId: string
+      displayName: string
+      redirectUris: string[]
+      postLogoutRedirectUris: string[]
+      scopes: string[]
+      grantTypes: string[]
+      clientType: 'confidential' | 'public'
+      consentType: 'explicit' | 'implicit' | 'external'
+      status: 'active' | 'inactive'
+      description?: string
+      createdAt: string
+      updatedAt: string
+    }
+
+    export interface CreateOAuthClientDto {
+      clientId: string
+      displayName: string
+      clientSecret?: string
+      redirectUris: string[]
+      postLogoutRedirectUris: string[]
+      scopes: string[]
+      grantTypes: string[]
+      clientType?: 'confidential' | 'public'
+      consentType?: 'explicit' | 'implicit' | 'external'
+      status?: 'active' | 'inactive'
+      description?: string
+    }
+
+    export interface UpdateOAuthClientDto {
+      displayName: string
+      redirectUris: string[]
+      postLogoutRedirectUris: string[]
+      scopes: string[]
+      grantTypes: string[]
+      clientType: 'confidential' | 'public'
+      consentType: 'explicit' | 'implicit' | 'external'
+      status: 'active' | 'inactive'
+      description?: string
+    }
+  }
+
+  export namespace Log {
+    export interface AuditLog {
+      id: number
+      userId?: number
+      userName?: string
+      action: string
+      resourceType: string
+      resourceId?: string
+      details?: string
+      ipAddress?: string
+      userAgent?: string
+      createdAt: string
+    }
+
+    export interface AccessLog {
+      id: number
+      userId?: number
+      userName?: string
+      path: string
+      method: string
+      statusCode: number
+      duration: number
+      ipAddress?: string
+      userAgent?: string
+      createdAt: string
+    }
+  }
+
+  export interface PaginatedResponse<T> {
+    items: T[]
+    totalCount: number
+    page: number
+    pageSize: number
+  }
+}
diff --git a/apps/web-ele/src/api/fengling/user.ts b/apps/web-ele/src/api/fengling/user.ts
new file mode 100644
index 0000000..3bb7643
--- /dev/null
+++ b/apps/web-ele/src/api/fengling/user.ts
@@ -0,0 +1,38 @@
+import type { FenglingApi } from './typings';
+
+import { requestClient } from '#/api/request';
+
+export namespace UserApi {
+  export async function getUserList(params: {
+    page?: number
+    pageSize?: number
+    keyword?: string
+    tenantId?: string
+    isActive?: boolean
+  }) {
+    return requestClient.get<FenglingApi.PaginatedResponse<FenglingApi.User.User>>(
+      '/users',
+      { params }
+    );
+  }
+
+  export async function getUserById(id: number) {
+    return requestClient.get<FenglingApi.User.User>(`/users/${id}`);
+  }
+
+  export async function createUser(data: FenglingApi.User.CreateUserDto) {
+    return requestClient.post<FenglingApi.User.User>('/users', data);
+  }
+
+  export async function updateUser(id: number, data: FenglingApi.User.UpdateUserDto) {
+    return requestClient.put<FenglingApi.User.User>(`/users/${id}`, data);
+  }
+
+  export async function deleteUser(id: number) {
+    return requestClient.delete(`/users/${id}`);
+  }
+
+  export async function resetUserPassword(id: number, data: FenglingApi.User.ResetPasswordDto) {
+    return requestClient.post(`/users/${id}/reset-password`, data);
+  }
+}
diff --git a/apps/web-ele/src/api/index.ts b/apps/web-ele/src/api/index.ts
index 4b0e041..9937061 100644
--- a/apps/web-ele/src/api/index.ts
+++ b/apps/web-ele/src/api/index.ts
@@ -1 +1,2 @@
 export * from './core';
+export * from './fengling';