diff --git a/server.go b/server.go
index e9a46f5..08e8ec4 100644
--- a/server.go
+++ b/server.go
@@ -779,3 +779,71 @@ func (hc *HttpApiBroker) Call(funcname string, w http.ResponseWriter, r *http.Re
 		logger.Println("api is not found :", funcname)
 	}
 }
+
+func CallInternalServiceAPI[T any](url string, apitoken string, method string, data T) error {
+	reqURL := fmt.Sprintf("%s/api?call=%s", url, method)
+
+	buff := new(bytes.Buffer)
+	enc := gob.NewEncoder(buff)
+	enc.Encode(data)
+
+	req, err := http.NewRequest("POST", reqURL, buff)
+	if err != nil {
+		return err
+	}
+
+	req.Header.Set("MG-X-API-TOKEN", apitoken)
+	req.Header.Set("Content-Type", "application/gob")
+
+	resp, err := http.DefaultClient.Do(req)
+	defer func() {
+		if resp != nil && resp.Body != nil {
+			resp.Body.Close()
+		}
+	}()
+
+	if err == nil {
+		if resp.StatusCode != http.StatusOK {
+			return &ErrorWithStatus{StatusCode: resp.StatusCode}
+		}
+	}
+
+	return err
+}
+
+func CallInternalServiceAPIAs[Tin any, Tout any](url string, apitoken string, method string, data Tin, out *Tout) error {
+	reqURL := fmt.Sprintf("%s/api?call=%s", url, method)
+
+	buff := new(bytes.Buffer)
+	enc := gob.NewEncoder(buff)
+	enc.Encode(data)
+
+	req, err := http.NewRequest("POST", reqURL, buff)
+	if err != nil {
+		return err
+	}
+
+	req.Header.Set("MG-X-API-TOKEN", apitoken)
+	req.Header.Set("Content-Type", "application/gob")
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return &ErrorWithStatus{StatusCode: resp.StatusCode}
+	}
+
+	defer func() {
+		if resp != nil && resp.Body != nil {
+			resp.Body.Close()
+		}
+	}()
+
+	if out != nil && resp.Body != nil {
+		dec := gob.NewDecoder(resp.Body)
+		return dec.Decode(out)
+	}
+	return nil
+}