diff --git a/app/src/main/java/com/example/sprout/refactor/api/RegistrationService.java b/app/src/main/java/com/example/sprout/refactor/api/RegistrationService.java
index a23ddd0..9d5bb07 100644
--- a/app/src/main/java/com/example/sprout/refactor/api/RegistrationService.java
+++ b/app/src/main/java/com/example/sprout/refactor/api/RegistrationService.java
@@ -5,6 +5,7 @@
 import io.reactivex.Observable;
 import retrofit2.http.Field;
 import retrofit2.http.FormUrlEncoded;
+import retrofit2.http.GET;
 import retrofit2.http.POST;
 
 /**
@@ -23,4 +24,10 @@
     @FormUrlEncoded
     @POST("accounts")
     Observable<Account> registration(@Field("userName") String userName);
+
+    /**
+     * アカウント取得
+     */
+    @GET("accounts/{userId}")
+    Observable<Account> getAccount(@Field("userId") int userId);
 }