diff --git a/api/http.go b/api/http.go
index f35deb6565..6971353d3a 100644
--- a/api/http.go
+++ b/api/http.go
@@ -64,7 +64,7 @@ func newHTTPHandler(web3Handler Web3Handler) *hTTPHandler {
 
 func (handler *hTTPHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	if req.Method != "POST" {
-		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte("IoTeX RPC endpoint is ready."))
 		return
 	}
 
diff --git a/api/http_test.go b/api/http_test.go
index f001fceca7..fa5be3e332 100644
--- a/api/http_test.go
+++ b/api/http_test.go
@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -28,7 +29,9 @@ func TestServeHTTP(t *testing.T) {
 		req.Header.Set("Content-Type", "application/json")
 		resp := httptest.NewRecorder()
 		svr.ServeHTTP(resp, req)
-		require.Equal(http.StatusMethodNotAllowed, resp.Result().StatusCode)
+		require.Equal(http.StatusOK, resp.Result().StatusCode)
+		bytes, _ := io.ReadAll(resp.Result().Body)
+		require.Equal("IoTeX RPC endpoint is ready.", string(bytes))
 	})
 
 	t.Run("Success", func(t *testing.T) {