diff --git a/api/members.go b/api/members.go
index 1b6ebf7..652971e 100644
--- a/api/members.go
+++ b/api/members.go
@@ -14,7 +14,7 @@ type ListMembersResponse struct {
 func (a *Api) ListMembers(gn string) ([]Member, error) {
 
 	var (
-		URL = fmt.Sprintf("%s/members?gn=%s&key=%s", a.config.BaseURL, gn, a.config.APIKey)
+		URL = fmt.Sprintf("%s/members?gn=%s&key=%s", a.config.Account.BaseURL, gn, a.config.Account.APIKey)
 	)
 
 	resp, err := a.httpCall(URL)
diff --git a/main.go b/main.go
index 9a13606..c867d4e 100644
--- a/main.go
+++ b/main.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"log"
 
 	"github.com/android-project-46group/sgi-cli/api"
 	"github.com/android-project-46group/sgi-cli/cmd"
@@ -15,10 +16,10 @@ var (
 )
 
 func main() {
-	config := util.Config{
-		Version: fmt.Sprintf("%s - %s", version, revision),
-		BaseURL: "https://kokoichi0206.mydns.jp/api/v1",
-		APIKey: "my_api_key",
+	ver := fmt.Sprintf("%s - %s", version, revision)
+	config, err := util.NewConfig(ver)
+	if err != nil {
+		log.Fatal(err)
 	}
 	api := api.New(config)
 
diff --git a/util/config.go b/util/config.go
index 5e7f787..5f9439e 100644
--- a/util/config.go
+++ b/util/config.go
@@ -1,7 +1,51 @@
 package util
 
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
 type Config struct {
 	Version string
+	Account Account
+}
+
+type Account struct {
 	BaseURL string
 	APIKey  string
 }
+
+var (
+	// Path to an account setting file from HOME directory
+	accountPath = ".sgi/account.json"
+)
+
+func NewConfig(version string) (Config, error) {
+
+	var cfg Config
+	cfg.Version = version
+
+	// Read account.json from a specific file.
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return cfg, err
+	}
+	joined := filepath.Join(home, accountPath)
+
+	f, err := os.Open(joined)
+	if err != nil {
+		return cfg, errors.New(fmt.Sprintf("Expected to read account information from: %s\n", joined))
+	}
+	defer f.Close()
+
+	var ac Account
+	if err := json.NewDecoder(f).Decode(&ac); err != nil {
+		return cfg, err
+	}
+	cfg.Account = ac
+
+	return cfg, nil
+}