diff --git a/client.go b/client.go
index 2e842eb..dc42968 100644
--- a/client.go
+++ b/client.go
@@ -52,7 +52,17 @@ func (c *Client) getKey() string {
 
 // New initialize a new etherscan API client
 // please use pre-defined network value
-func New(network Network, APIKeys []string) *Client {
+func New(network Network, APIKeys string) *Client {
+	return NewCustomized(Customization{
+		Timeout: 30 * time.Second,
+		Keys:    []string{APIKeys},
+		BaseURL: fmt.Sprintf(`https://%s.etherscan.io/api?`, network.SubDomain()),
+	})
+}
+
+// New initialize a new etherscan API client
+// please use pre-defined network value
+func NewMultiKey(network Network, APIKeys []string) *Client {
 	return NewCustomized(Customization{
 		Timeout: 30 * time.Second,
 		Keys:    APIKeys,
diff --git a/client_test.go b/client_test.go
index 4f34b1f..a8d045c 100644
--- a/client_test.go
+++ b/client_test.go
@@ -12,7 +12,7 @@ import (
 )
 
 func TestClient_craftURL(t *testing.T) {
-	c := New(Ropsten, []string{"abc123"})
+	c := New(Ropsten, "abc123")
 
 	const expected = `https://api-ropsten.etherscan.io/api?action=craftURL&apikey=abc123&four=d&four=e&four=f&module=testing&one=1&three=1&three=2&three=3&two=2`
 	output := c.craftURL("testing", "craftURL", M{
diff --git a/go.mod b/go.mod
index db8ee5b..5837de6 100644
--- a/go.mod
+++ b/go.mod
@@ -1,4 +1,4 @@
-module github.com/NFEL/etherscan-api-multikey
+module github.com/nanmu42/etherscan-api
 
 go 1.13
 
diff --git a/setup_e2e_test.go b/setup_e2e_test.go
index 3573d26..c262e8f 100644
--- a/setup_e2e_test.go
+++ b/setup_e2e_test.go
@@ -41,7 +41,8 @@ func init() {
 	}
 	bucket = NewBucket(500 * time.Millisecond)
 
-	api = New(Mainnet, []string{apiKey, backupApiKey})
+	api = New(Mainnet, apiKey)
+	api = NewMultiKey(Mainnet, []string{apiKey, backupApiKey})
 	api.Verbose = true
 	api.BeforeRequest = func(module string, action string, param map[string]interface{}) error {
 		bucket.Take()