diff --git a/src/api/index.ts b/src/api/index.ts
index 91447655..ef0330a5 100644
--- a/src/api/index.ts
+++ b/src/api/index.ts
@@ -1,10 +1,12 @@
-import { userServiceRemote } from './service';
+import { authServiceRemote, userServiceRemote } from './service';
 
 const provideAPIService = () => {
   const userService = userServiceRemote();
+  const authService = authServiceRemote();
 
   return {
     usersService: userService,
+    authService,
   };
 };
 
diff --git a/src/api/service/auth-service/index.ts b/src/api/service/auth-service/index.ts
new file mode 100644
index 00000000..63ae05e6
--- /dev/null
+++ b/src/api/service/auth-service/index.ts
@@ -0,0 +1,33 @@
+import type { AxiosError } from 'axios';
+
+import { baseAPI } from '@/api/core';
+import { LoginRequest, LoginResponse, SignupRequest, SignupResponse } from '@/types/service/auth';
+import { CommonErrorResponse } from '@/types/service/common';
+
+export const isProblemDetailError = (error: unknown): error is AxiosError<CommonErrorResponse> => {
+  return (
+    typeof error === 'object' &&
+    error !== null &&
+    'isAxiosError' in error &&
+    (error as AxiosError).isAxiosError === true
+  );
+};
+
+export const authServiceRemote = () => ({
+  // 로그인
+  login: async (payload: LoginRequest): Promise<LoginResponse> => {
+    const { data } = await baseAPI.post<LoginResponse>('/api/v1/auth/login', payload);
+    return data;
+  },
+
+  // 회원가입
+  signup: async (payload: SignupRequest): Promise<SignupResponse> => {
+    const { data } = await baseAPI.post<SignupResponse>('/api/v1/auth/signup', payload);
+    return data;
+  },
+
+  // 로그아웃
+  logout: async (): Promise<void> => {
+    await baseAPI.post('/api/v1/auth/logout');
+  },
+});
diff --git a/src/api/service/index.ts b/src/api/service/index.ts
index a72b81ea..bf5b1ae7 100644
--- a/src/api/service/index.ts
+++ b/src/api/service/index.ts
@@ -1 +1,2 @@
+export * from './auth-service';
 export * from './user-service';
diff --git a/src/components/pages/login/login-form/index.tsx b/src/components/pages/login/login-form/index.tsx
index 22689bdd..c0e3b142 100644
--- a/src/components/pages/login/login-form/index.tsx
+++ b/src/components/pages/login/login-form/index.tsx
@@ -1,7 +1,11 @@
 'use client';
 
+import { useRouter } from 'next/navigation';
+
 import { type AnyFieldApi, useForm } from '@tanstack/react-form';
 
+import { API } from '@/api';
+import { isProblemDetailError } from '@/api/service';
 import { FormInput } from '@/components/shared';
 import { Button } from '@/components/ui';
 import { loginSchema } from '@/lib/schema/auth';
@@ -19,6 +23,8 @@ const getHintMessage = (field: AnyFieldApi) => {
 };
 
 export const LoginForm = () => {
+  const router = useRouter();
+
   const form = useForm({
     defaultValues: {
       email: '',
@@ -28,9 +34,29 @@ export const LoginForm = () => {
       onSubmit: loginSchema,
       onChange: loginSchema,
     },
-    onSubmit: async ({ value }) => {
-      // API 호출
-      alert('login:' + value.email);
+    onSubmit: async ({ value, formApi }) => {
+      try {
+        const payload = {
+          email: value.email,
+          password: value.password,
+        };
+
+        const result = await API.authService.login(payload);
+        console.log('login success:', result);
+
+        formApi.reset();
+        router.push('/');
+      } catch (error) {
+        if (isProblemDetailError(error) && error.response?.data) {
+          const problem = error.response.data;
+
+          console.error('[LOGIN ERROR]', problem.errorCode, problem.detail);
+          alert(problem.detail || '로그인에 실패했습니다.');
+        } else {
+          console.error(error);
+          alert('알 수 없는 오류가 발생했습니다.');
+        }
+      }
     },
   });
 
diff --git a/src/components/pages/signup/signup-form/index.tsx b/src/components/pages/signup/signup-form/index.tsx
index 81d02e48..efede055 100644
--- a/src/components/pages/signup/signup-form/index.tsx
+++ b/src/components/pages/signup/signup-form/index.tsx
@@ -1,7 +1,11 @@
 'use client';
 
+import { useRouter } from 'next/navigation';
+
 import { type AnyFieldApi, useForm } from '@tanstack/react-form';
 
+import { API } from '@/api';
+import { isProblemDetailError } from '@/api/service';
 import { FormInput } from '@/components/shared';
 import { Button } from '@/components/ui';
 import { signupSchema } from '@/lib/schema/auth';
@@ -19,6 +23,8 @@ const getHintMessage = (field: AnyFieldApi) => {
 };
 
 export const SignupForm = () => {
+  const router = useRouter();
+
   const form = useForm({
     defaultValues: {
       email: '',
@@ -30,9 +36,30 @@ export const SignupForm = () => {
       onChange: signupSchema,
       onSubmit: signupSchema,
     },
-    onSubmit: async ({ value }) => {
-      // api 호출
-      alert('signup:' + value.nickname);
+    onSubmit: async ({ value, formApi }) => {
+      try {
+        const payload = {
+          email: value.email,
+          password: value.password,
+          nickName: value.nickname,
+        };
+
+        const result = await API.authService.signup(payload);
+        console.log('signup success:', result);
+
+        formApi.reset();
+        router.push('/login');
+      } catch (error) {
+        if (isProblemDetailError(error) && error.response?.data) {
+          const problem = error.response.data;
+
+          console.error('[SIGNUP ERROR]', problem.errorCode, problem.detail);
+          alert(problem.detail || '회원가입에 실패했습니다.');
+        } else {
+          console.error(error);
+          alert('알 수 없는 오류가 발생했습니다.');
+        }
+      }
     },
   });
 
diff --git a/src/mock/handlers.ts b/src/mock/handlers.ts
index 458d6f33..31528087 100644
--- a/src/mock/handlers.ts
+++ b/src/mock/handlers.ts
@@ -1,3 +1,4 @@
+import { authHandlers } from './service/auth/auth-handlers';
 import { userHandlers } from './service/user/users-handler';
 
-export const handlers = [...userHandlers];
+export const handlers = [...userHandlers, ...authHandlers];
diff --git a/src/mock/service/auth/auth-handlers.ts b/src/mock/service/auth/auth-handlers.ts
new file mode 100644
index 00000000..b940e398
--- /dev/null
+++ b/src/mock/service/auth/auth-handlers.ts
@@ -0,0 +1,66 @@
+import { http, HttpResponse } from 'msw';
+
+import { LoginRequest, LoginResponse, SignupRequest } from '@/types/service/auth';
+import { CommonErrorResponse } from '@/types/service/common';
+
+import {
+  createLoginResponse,
+  createSignupResponse,
+  isEmailTaken,
+  isNicknameTaken,
+} from './auth-utils';
+
+const signupMock = http.post('*/api/v1/auth/signup', async ({ request }) => {
+  const body = (await request.json()) as SignupRequest;
+
+  if (isEmailTaken(body.email)) {
+    const errorBody: CommonErrorResponse = {
+      type: 'https://example.com/errors/email-duplicate',
+      title: 'EMAIL_DUPLICATE',
+      status: 400,
+      detail: '이미 존재하는 이메일입니다.',
+      instance: '/api/v1/auth/signup',
+      errorCode: 'A002',
+    };
+    return HttpResponse.json<CommonErrorResponse>(errorBody, { status: 400 });
+  }
+
+  if (isNicknameTaken(body.nickName)) {
+    const errorBody: CommonErrorResponse = {
+      type: 'https://example.com/errors/nickname-duplicate',
+      title: 'NICKNAME_DUPLICATE',
+      status: 400,
+      detail: '이미 존재하는 닉네임입니다.',
+      instance: '/api/v1/auth/signup',
+      errorCode: 'A003',
+    };
+    return HttpResponse.json<CommonErrorResponse>(errorBody, { status: 400 });
+  }
+  const response = createSignupResponse(body.email, body.nickName, body.password);
+  return HttpResponse.json(response, { status: 201 });
+});
+
+const loginMock = http.post('*/api/v1/auth/login', async ({ request }) => {
+  const body = (await request.json()) as LoginRequest;
+
+  try {
+    const response = createLoginResponse(body.email, body.password);
+    return HttpResponse.json<LoginResponse>(response, { status: 200 });
+  } catch {
+    const errorBody: CommonErrorResponse = {
+      type: 'https://example.com/errors/invalid-credentials',
+      title: 'INVALID_CREDENTIALS',
+      status: 400,
+      detail: '이메일 또는 비밀번호가 올바르지 않습니다.',
+      instance: '/api/v1/auth/login',
+      errorCode: 'A001',
+    };
+    return HttpResponse.json(errorBody, { status: 400 });
+  }
+});
+
+const logoutMock = http.post('*/api/v1/auth/logout', async ({}) => {
+  return new HttpResponse(null, { status: 204 });
+});
+
+export const authHandlers = [signupMock, loginMock, logoutMock];
diff --git a/src/mock/service/auth/auth-mock.ts b/src/mock/service/auth/auth-mock.ts
new file mode 100644
index 00000000..0a6ff231
--- /dev/null
+++ b/src/mock/service/auth/auth-mock.ts
@@ -0,0 +1,31 @@
+export interface AuthMockUser {
+  id: number;
+  email: string;
+  nickName: string;
+  password: string;
+  createdAt: string;
+}
+
+export const authMockUsers: AuthMockUser[] = [
+  {
+    id: 1,
+    email: 'messi@test.com',
+    nickName: '리오넬 메시',
+    password: 'test9876',
+    createdAt: '2025-01-30T12:00:00',
+  },
+  {
+    id: 2,
+    email: 'ronaldo@test.com',
+    nickName: '크리스티아누 호날두',
+    password: 'test1234',
+    createdAt: '2025-01-30T12:00:00',
+  },
+  {
+    id: 3,
+    email: 'torres@test.com',
+    nickName: '페르난도 토레스',
+    password: '123456789',
+    createdAt: '2025-01-30T12:00:00',
+  },
+];
diff --git a/src/mock/service/auth/auth-utils.ts b/src/mock/service/auth/auth-utils.ts
new file mode 100644
index 00000000..1755a060
--- /dev/null
+++ b/src/mock/service/auth/auth-utils.ts
@@ -0,0 +1,61 @@
+import type { LoginResponse, SignupResponse } from '@/types/service/auth';
+
+import { AuthMockUser, authMockUsers } from './auth-mock';
+
+const findUserByEmail = (email: string) => authMockUsers.find((user) => user.email === email);
+const findUserByNickname = (nickName: string) =>
+  authMockUsers.find((user) => user.nickName === nickName);
+
+const findUserByCredentials = (email: string, password: string) =>
+  authMockUsers.find((user) => user.email === email && user.password === password);
+
+const createMockTokens = () => ({
+  accessToken: 'mock-access-token',
+  refreshToken: 'mock-refresh-token',
+  tokenType: 'Bearer' as const,
+  expiresIn: 3600,
+});
+
+export const createLoginResponse = (email: string, password: string): LoginResponse => {
+  const user = findUserByCredentials(email, password);
+  if (!user) {
+    throw new Error('INVALID_CREDENTIALS');
+  }
+
+  const tokens = createMockTokens();
+
+  return {
+    ...tokens,
+    user: {
+      id: user.id,
+      email: user.email,
+      nickName: user.nickName,
+    },
+  };
+};
+
+export const createSignupResponse = (
+  email: string,
+  nickName: string,
+  password: string,
+): SignupResponse => {
+  const newUser: AuthMockUser = {
+    id: authMockUsers.length + 1,
+    email,
+    nickName,
+    password,
+    createdAt: new Date().toISOString(),
+  };
+
+  authMockUsers.push(newUser);
+
+  return {
+    id: newUser.id,
+    email: newUser.email,
+    nickName: newUser.nickName,
+    createdAt: newUser.createdAt,
+  };
+};
+
+export const isEmailTaken = (email: string) => !!findUserByEmail(email);
+export const isNicknameTaken = (nickName: string) => !!findUserByNickname(nickName);
diff --git a/src/types/service/auth.ts b/src/types/service/auth.ts
new file mode 100644
index 00000000..32b9bc73
--- /dev/null
+++ b/src/types/service/auth.ts
@@ -0,0 +1,29 @@
+export interface SignupRequest {
+  email: string;
+  password: string;
+  nickName: string;
+}
+
+export interface SignupResponse {
+  id: number;
+  email: string;
+  nickName: string;
+  createdAt: string;
+}
+
+export interface LoginRequest {
+  email: string;
+  password: string;
+}
+
+export interface LoginResponse {
+  accessToken: string;
+  refreshToken: string;
+  tokenType: 'Bearer';
+  expiresIn: number;
+  user: {
+    id: number;
+    email: string;
+    nickName: string;
+  };
+}
diff --git a/src/types/service/common.ts b/src/types/service/common.ts
new file mode 100644
index 00000000..68eca4a0
--- /dev/null
+++ b/src/types/service/common.ts
@@ -0,0 +1,8 @@
+export interface CommonErrorResponse {
+  type: string;
+  title: string;
+  status: number;
+  detail: string;
+  instance: string;
+  errorCode?: string;
+}