diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index ec19294..4946b99 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -78,4 +78,5 @@ dependencies {
     implementation(libs.retrofit)
     implementation(libs.retrofit.kotlin.serialization.converter)
     implementation(libs.kotlinx.serialization.json)
+    implementation(libs.converter.gson)
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/sopt/and/data/network/ApiFactory.kt b/app/src/main/java/org/sopt/and/data/network/ApiFactory.kt
index 5efe441..b70d0e1 100644
--- a/app/src/main/java/org/sopt/and/data/network/ApiFactory.kt
+++ b/app/src/main/java/org/sopt/and/data/network/ApiFactory.kt
@@ -27,10 +27,4 @@ object ApiFactory {
     }
 
     inline fun <reified T> create(): T = retrofit.create(T::class.java)
-}
-
-//이 userService를, 서버를 붙이는 부분에서 사용해야 함.
-//Viewmodel에서 이 userService에 접근하면 됨.
-object ServicePool {
-    val userService = ApiFactory.create<UserService>()
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/sopt/and/data/network/RetrofitInstance.kt b/app/src/main/java/org/sopt/and/data/network/RetrofitInstance.kt
new file mode 100644
index 0000000..afb88c0
--- /dev/null
+++ b/app/src/main/java/org/sopt/and/data/network/RetrofitInstance.kt
@@ -0,0 +1,20 @@
+package org.sopt.and.data.network
+
+import org.sopt.and.BuildConfig
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+
+object RetrofitInstance {
+    private val BASE_URL = BuildConfig.BASE_URL
+
+    private val retrofit: Retrofit by lazy {
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+    }
+
+    val userService: UserService by lazy {
+        retrofit.create(UserService::class.java)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/sopt/and/presentation/loginScreen/LoginViewModel.kt b/app/src/main/java/org/sopt/and/presentation/loginScreen/LoginViewModel.kt
index 9de63ba..e92b326 100644
--- a/app/src/main/java/org/sopt/and/presentation/loginScreen/LoginViewModel.kt
+++ b/app/src/main/java/org/sopt/and/presentation/loginScreen/LoginViewModel.kt
@@ -10,24 +10,14 @@ import org.sopt.and.data.datalocal.datasource.UserInfoLocalDataSource
 import org.sopt.and.domain.User
 import org.sopt.and.data.dto.login.RequestGetUserDto
 import org.sopt.and.data.dto.login.ResponseGetUserFailedDto
-import org.sopt.and.data.dto.signup.RequestCreateUserDto
-import org.sopt.and.data.dto.signup.ResponseCreateUserFailedDto
-import org.sopt.and.data.network.ServicePool
-import org.sopt.and.presentation.main.UserViewModel
-import org.sopt.and.presentation.mypageScreen.MypageViewModel
+import org.sopt.and.data.network.RetrofitInstance.userService
 import org.sopt.and.presentation.signupScreen.StringInputValidCheck
 import org.sopt.and.presentation.signupScreen.PasswordValidCheck
-import retrofit2.Call
-import retrofit2.Callback
-import retrofit2.Response
 
 class LoginViewModel(
     private val userInfoLocalDataSource: UserInfoLocalDataSource
 ) : ViewModel() {
 
-    //로그인 요청을 서버로 보내기 위함
-    private val userService by lazy { ServicePool.userService }
-
     private val _user = MutableStateFlow(User())
     val user: StateFlow<User> = _user
 
diff --git a/app/src/main/java/org/sopt/and/presentation/mypageScreen/MypageViewModel.kt b/app/src/main/java/org/sopt/and/presentation/mypageScreen/MypageViewModel.kt
index 8f9154d..b3cc267 100644
--- a/app/src/main/java/org/sopt/and/presentation/mypageScreen/MypageViewModel.kt
+++ b/app/src/main/java/org/sopt/and/presentation/mypageScreen/MypageViewModel.kt
@@ -7,17 +7,14 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 import org.sopt.and.data.datalocal.datasource.UserInfoLocalDataSource
-import org.sopt.and.data.network.ServicePool
+import org.sopt.and.data.network.RetrofitInstance.userService
 import org.sopt.and.domain.User
-import org.sopt.and.presentation.main.UserViewModel
 
 
 class MypageViewModel(
     private val userInfoLocalDataSource: UserInfoLocalDataSource
 ) : ViewModel() {
 
-    private val userService by lazy { ServicePool.userService }
-
     private val _user = MutableStateFlow(User())
     val user: StateFlow<User> = _user
 
@@ -51,37 +48,4 @@ class MypageViewModel(
             return "취미 가져오기 에러"
         }
     }
-
-
-
-//    fun getUserHobby(request: RequestGetUserHobbyDto, userViewModel: UserViewModel) {
-//        val TAG = "UserService"
-//
-//        userService.getMyHobby(request).enqueue(object : Callback<ResponseGetUserHobbyWrapperDto> {
-//            override fun onResponse(
-//                call: Call<ResponseGetUserHobbyWrapperDto>,
-//                response: Response<ResponseGetUserHobbyWrapperDto>
-//            ) {
-//                if (response.isSuccessful) {
-//                    // 성공 응답 처리
-//                    val body = response.body()
-//                    if (body != null) {
-//                        val userHobby = body.success.result?.userHobby ?: "default hobby"
-//                        Log.d("UserService", "유저 취미: $userHobby")
-//                        userViewModel.setHobby(userHobby)
-//                    } else {
-//                        Log.e("UserService", "응답 본문 없음")
-//                    }
-//                } else {
-//                    // 실패 응답 처리
-//                }
-//            }
-//
-//            override fun onFailure(call: Call<ResponseGetUserHobbyWrapperDto>, t: Throwable) {
-//                // 네트워크 오류 처리
-//                Log.e("UserService", "API 호출 실패: ${t.message}")
-//            }
-//        })
-//
-//    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/sopt/and/presentation/signupScreen/SignUpViewModel.kt b/app/src/main/java/org/sopt/and/presentation/signupScreen/SignUpViewModel.kt
index f757962..b0adaa5 100644
--- a/app/src/main/java/org/sopt/and/presentation/signupScreen/SignUpViewModel.kt
+++ b/app/src/main/java/org/sopt/and/presentation/signupScreen/SignUpViewModel.kt
@@ -8,17 +8,10 @@ import kotlinx.serialization.json.Json
 import org.sopt.and.domain.User
 import org.sopt.and.data.dto.signup.RequestCreateUserDto
 import org.sopt.and.data.dto.signup.ResponseCreateUserFailedDto
-import org.sopt.and.data.dto.signup.ResponseCreateUserSuccessDto
-import org.sopt.and.data.network.ServicePool
-import retrofit2.Call
-import retrofit2.Callback
-import retrofit2.Response
+import org.sopt.and.data.network.RetrofitInstance.userService
 
 class SignUpViewModel : ViewModel() {
 
-    //회원가입 성공 시 서버로 create 요청 보내기 위함
-    private val userService by lazy { ServicePool.userService }
-
     private val _user = MutableStateFlow(User())
     val user: StateFlow<User> = _user
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index b33b409..64bd24c 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -2,6 +2,7 @@
 agp = "8.7.0"
 kotlin = "2.0.0"
 coreKtx = "1.10.1"
+converterGson = "2.9.0"
 junit = "4.13.2"
 junitVersion = "1.1.5"
 espressoCore = "3.5.1"
@@ -36,6 +37,7 @@ okhttp-logging-interceptor = { group = "com.squareup.okhttp3", name = "logging-i
 retrofit = { group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit" }
 retrofit-kotlin-serialization-converter = { group = "com.jakewharton.retrofit", name = "retrofit2-kotlinx-serialization-converter", version.ref = "retrofitKotlinSerializationConverter" }
 kotlinx-serialization-json = { group = "org.jetbrains.kotlinx", name = "kotlinx-serialization-json", version.ref = "kotlinxSerializationJson" }
+converter-gson = { module = "com.squareup.retrofit2:converter-gson", version.ref = "converterGson" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }