diff --git a/src/main/java/jp/ne/paypay/ApiClient.java b/src/main/java/jp/ne/paypay/ApiClient.java
index 8e6d440..9587dec 100644
--- a/src/main/java/jp/ne/paypay/ApiClient.java
+++ b/src/main/java/jp/ne/paypay/ApiClient.java
@@ -43,12 +43,14 @@ public class ApiClient {
     private String basePath = ApiConstants.DEFAULT_BASE_PATH;
     private String basePathProd = ApiConstants.PROD_BASE_PATH;
     private String basePathSandbox = ApiConstants.SANDBOX_BASE_PATH;
+    private String basePathPerf = ApiConstants.PERF_BASE_PATH;
     private Map<String, String> defaultHeaderMap = new HashMap<>();
     private Map<String, Authentication> authentications;
     private OkHttpClient httpClient;
     private JSON json;
     private String assumeMerchant;
     private boolean productionMode;
+    private boolean perfMode;
 
     /*
      * Constructor for ApiClient
@@ -66,6 +68,9 @@ public ApiClient() {
     public boolean isProductionMode() {
         return productionMode;
     }
+    public boolean isPerfMode() {
+        return perfMode;
+    }
 
     public String getBasePathProd() {
         return basePathProd;
@@ -118,6 +123,13 @@ public ApiClient setProductionMode(boolean productionMode) {
 
         return this;
     }
+    public ApiClient setPerfMode(boolean perfMode) {
+        this.perfMode = perfMode;
+        if(perfMode){
+            this.basePath = basePathPerf;
+        }
+        return this;
+    }
 
     /**
      * Get base path
diff --git a/src/main/java/jp/ne/paypay/api/ApiConstants.java b/src/main/java/jp/ne/paypay/api/ApiConstants.java
index 74c68f6..d2bd803 100644
--- a/src/main/java/jp/ne/paypay/api/ApiConstants.java
+++ b/src/main/java/jp/ne/paypay/api/ApiConstants.java
@@ -5,6 +5,7 @@ public class ApiConstants {
     public static final String DEFAULT_BASE_PATH = "https://stg-api.sandbox.paypay.ne.jp";
     public static final String PROD_BASE_PATH = "https://api.paypay.ne.jp";
     public static final String SANDBOX_BASE_PATH = "https://stg-api.sandbox.paypay.ne.jp";
+    public static final String PERF_BASE_PATH = "https://perf-api.paypay.ne.jp";
     public static final String APPLICATION_JSON = "application/json";
     public static final String ACCEPT = "Accept";
     public static final String MERCHANT_PAYMENT_ID = "merchantPaymentId";
diff --git a/src/test/java/jp/ne/paypay/api/ApiClientTest.java b/src/test/java/jp/ne/paypay/api/ApiClientTest.java
index 45ab2ee..2aa21f6 100644
--- a/src/test/java/jp/ne/paypay/api/ApiClientTest.java
+++ b/src/test/java/jp/ne/paypay/api/ApiClientTest.java
@@ -87,16 +87,12 @@ public void configTest() throws ApiException{
     }
 
     @Test
-    public void parameterToStringTest(){
-        List<String> params = new ArrayList<>();
-        params.add("Id");
-        params.add("Name");
-        String parameterToString = apiClient.parameterToString(params);
-        Assert.assertEquals(parameterToString, "Id,Name");
-        Date date  = new GregorianCalendar(2020, Calendar.FEBRUARY, 5).getTime();
-        parameterToString = apiClient.parameterToString(date);
-        Assert.assertTrue(parameterToString.startsWith("2020-"));
+    public void perfModeTest(){
+        apiClient.setPerfMode(true);
+        Assert.assertEquals(apiClient.getBasePath(), ApiConstants.PERF_BASE_PATH);
+        Assert.assertTrue(apiClient.isPerfMode());
     }
+
     @Test
     public void parameterToPairTest(){
         List<Pair> pairs = apiClient.parameterToPair("name", "paypay");