diff --git a/src/service/feature/auth/api/authAPI.ts b/src/service/feature/auth/api/authApi.ts
similarity index 90%
rename from src/service/feature/auth/api/authAPI.ts
rename to src/service/feature/auth/api/authApi.ts
index 8ee649e..aa52c96 100644
--- a/src/service/feature/auth/api/authAPI.ts
+++ b/src/service/feature/auth/api/authApi.ts
@@ -1,21 +1,21 @@
-import createAxiosInstance from '@service/feature/common/axios/axiosInstance.ts';
-import {
-  LoginRequest,
-  LoginResponse,
-  RegisterRequest,
-  RegisterResponse,
-} from '@service/feature/auth/types/auth.ts';
-
-const axios = createAxiosInstance('members');
-
-export const login = async (data: LoginRequest): Promise<LoginResponse> => {
-  const response = await axios.post('/sign-in', data);
-  return response.data.data;
-};
-
-export const register = async (
-  data: RegisterRequest,
-): Promise<RegisterResponse> => {
-  const response = await axios.post('/sign-up', data);
-  return response.data;
-};
+import createAxiosInstance from '@service/feature/common/axios/axiosInstance.ts';
+import {
+  LoginRequest,
+  LoginResponse,
+  RegisterRequest,
+  RegisterResponse,
+} from '@service/feature/auth/types/auth.ts';
+
+const axios = createAxiosInstance();
+
+export const login = async (data: LoginRequest): Promise<LoginResponse> => {
+  const response = await axios.post('/sign-in', data);
+  return response.data.data;
+};
+
+export const register = async (
+  data: RegisterRequest,
+): Promise<RegisterResponse> => {
+  const response = await axios.post('/sign-up', data);
+  return response.data;
+};
diff --git a/src/service/feature/auth/api/profileAPI.ts b/src/service/feature/auth/api/profileApi.ts
similarity index 97%
rename from src/service/feature/auth/api/profileAPI.ts
rename to src/service/feature/auth/api/profileApi.ts
index 125d4ee..41be268 100644
--- a/src/service/feature/auth/api/profileAPI.ts
+++ b/src/service/feature/auth/api/profileApi.ts
@@ -1,10 +1,10 @@
-import createAxiosInstance from '@service/feature/common/axios/axiosInstance.ts';
-import { UserProfile } from '@service/feature/auth/types/profile.ts';
-import { ApiResponse } from '@service/feature/common/axios/apiType.ts';
-
-const axios = createAxiosInstance('members');
-
-export const getProfile = async (): Promise<UserProfile> => {
-  const response = await axios.get<ApiResponse<UserProfile>>('/members');
-  return response.data.data;
-};
+import createAxiosInstance from '@service/feature/common/axios/axiosInstance.ts';
+import { UserProfile } from '@service/feature/auth/types/profile.ts';
+import { ApiResponse } from '@service/feature/common/axios/apiType.ts';
+
+const axios = createAxiosInstance('members');
+
+export const getProfile = async (): Promise<UserProfile> => {
+  const response = await axios.get<ApiResponse<UserProfile>>('/members');
+  return response.data.data;
+};
diff --git a/src/service/feature/auth/types/auth.ts b/src/service/feature/auth/types/auth.ts
index 992d694..e69de29 100644
--- a/src/service/feature/auth/types/auth.ts
+++ b/src/service/feature/auth/types/auth.ts
@@ -1,23 +0,0 @@
-export interface LoginRequest {
-  email: string;
-  password: string;
-}
-
-export interface LoginResponse {
-  id: string;
-  name: string;
-  type: 'MEMBER' | 'ADMIN' | string;
-  token: string;
-}
-
-export interface RegisterRequest {
-  email: string;
-  password: string;
-  nickname: string;
-}
-
-export interface RegisterResponse {
-  userId: string;
-  email: string;
-  nickname: string;
-}
diff --git a/src/service/feature/auth/types/profile.ts b/src/service/feature/auth/types/profile.ts
index 82de607..e69de29 100644
--- a/src/service/feature/auth/types/profile.ts
+++ b/src/service/feature/auth/types/profile.ts
@@ -1,13 +0,0 @@
-export type MemberState = 'ONLINE' | 'OFFLINE' | 'IDLE' | 'DO_NOT_DISTURB';
-
-export interface UserProfile {
-  id: string;
-  email: string;
-  nickname: string;
-  name: string;
-  birth: string;
-  type: 'MEMBER' | 'ADMIN' | string;
-  avatarUrl: string | null;
-  state: MemberState;
-  createdAt: string;
-}
\ No newline at end of file
diff --git a/src/service/feature/common/axios/apiType.ts b/src/service/feature/common/axios/apiType.ts
index ddc11ac..e69de29 100644
--- a/src/service/feature/common/axios/apiType.ts
+++ b/src/service/feature/common/axios/apiType.ts
@@ -1,5 +0,0 @@
-export interface ApiResponse<T> {
-  status: number;
-  message: string | null;
-  data: T;
-}
\ No newline at end of file
diff --git a/src/service/feature/common/axios/axiosInstance.ts b/src/service/feature/common/axios/axiosInstance.ts
index 89dde4e..e69de29 100644
--- a/src/service/feature/common/axios/axiosInstance.ts
+++ b/src/service/feature/common/axios/axiosInstance.ts
@@ -1,73 +0,0 @@
-import axios, { AxiosInstance, AxiosError, AxiosResponse } from 'axios';
-import { toast } from 'sonner';
-import { ERROR_MESSAGES } from '../../../lib/const/toast/errorMessage';
-import { getCookie } from '../../auth/lib/getCookie';
-
-export type ServiceType = 'members' | 'teams' | 'dialog';
-
-const API_CONFIG = {
-  BASE_DOMAIN: 'https://flowchat.shop:30200',
-  HEADERS: {
-    JSON: 'application/json',
-  },
-} as const;
-
-interface ErrorResponse {
-  message: string;
-}
-
-const handleAxiosError = (error: AxiosError<ErrorResponse>) => {
-  const { response } = error;
-  if (!response) {
-    toast.error('네트워크 오류 또는 서버 응답 없음');
-    return Promise.reject(error);
-  }
-
-  const errorMessages: Record<number, string> = {
-    401: ERROR_MESSAGES.UNAUTHORIZED,
-    403: ERROR_MESSAGES.FORBIDDEN,
-    500: ERROR_MESSAGES.SERVER_ERROR,
-  };
-
-  toast.error(
-    errorMessages[response.status] ||
-      (response.data && response.data.message) ||
-      ERROR_MESSAGES.DEFAULT_ERROR,
-  );
-
-  if (response.status === 401) {
-    // TODO: logout 처리 또는 /login 리디렉션
-  }
-
-  return Promise.reject(error);
-};
-
-export const createAxiosInstance = (): AxiosInstance => {
-  const instance = axios.create({
-    baseURL: API_CONFIG.BASE_DOMAIN,
-    headers: {
-      'Content-Type': API_CONFIG.HEADERS.JSON,
-    },
-    withCredentials: true,
-  });
-
-  instance.interceptors.request.use(
-    (config) => {
-      const token = getCookie('accessToken');
-      if (token) {
-        config.headers.Authorization = `Bearer ${token}`;
-      }
-      return config;
-    },
-    (error) => Promise.reject(error)
-  );
-
-  instance.interceptors.response.use(
-    (response: AxiosResponse) => response,
-    handleAxiosError
-  );
-
-  return instance;
-};
-
-export default createAxiosInstance;
\ No newline at end of file
diff --git a/src/view/pages/chat/components/message/MentionText.tsx b/src/view/pages/chat/components/message/MentionText.tsx
new file mode 100644
index 0000000..e69de29