diff --git a/examples/max-orders/main.go b/examples/max-orders/main.go
deleted file mode 100644
index 7b97ede8c..000000000
--- a/examples/max-orders/main.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package main
-
-import (
-	"log"
-	"os"
-
-	maxapi "github.com/c9s/bbgo/pkg/exchange/max/maxapi"
-)
-
-func main() {
-	key := os.Getenv("MAX_API_KEY")
-	secret := os.Getenv("MAX_API_SECRET")
-
-	maxRest := maxapi.NewRestClient(maxapi.ProductionAPIURL)
-	maxRest.Auth(key, secret)
-
-	orders, err := maxRest.OrderService.All("maxusdt", 100, 1, maxapi.OrderStateDone)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	for _, order := range orders {
-		log.Printf("%+v", order)
-	}
-}
diff --git a/pkg/exchange/max/maxapi/order.go b/pkg/exchange/max/maxapi/order.go
index 1f83a46d8..c6d82e5c7 100644
--- a/pkg/exchange/max/maxapi/order.go
+++ b/pkg/exchange/max/maxapi/order.go
@@ -4,18 +4,12 @@ package max
 //go:generate -command PostRequest requestgen -method POST
 
 import (
-	"context"
 	"net/url"
 
 	"github.com/c9s/bbgo/pkg/fixedpoint"
 	"github.com/c9s/bbgo/pkg/types"
 )
 
-var (
-	relUrlV2Orders              *url.URL
-	relUrlV2OrdersMultiOneByOne *url.URL
-)
-
 func mustParseURL(s string) *url.URL {
 	u, err := url.Parse(s)
 	if err != nil {
@@ -24,11 +18,6 @@ func mustParseURL(s string) *url.URL {
 	return u
 }
 
-func init() {
-	relUrlV2Orders = mustParseURL("v2/orders")
-	relUrlV2OrdersMultiOneByOne = mustParseURL("v2/orders/multi/onebyone")
-}
-
 type WalletType string
 
 const (
@@ -111,34 +100,3 @@ type Order struct {
 	ClientOID       string                     `json:"client_oid,omitempty"`
 	CreatedAt       types.MillisecondTimestamp `json:"created_at"`
 }
-
-// All returns all orders for the authenticated account.
-func (s *OrderService) All(market string, limit, page int, states ...OrderState) ([]Order, error) {
-	payload := map[string]interface{}{
-		"market":   market,
-		"limit":    limit,
-		"page":     page,
-		"state":    states,
-		"order_by": "desc",
-	}
-
-	req, err := s.client.newAuthenticatedRequest(context.Background(), "GET", "v2/orders", nil, payload, relUrlV2Orders)
-	if err != nil {
-		return nil, err
-	}
-
-	response, err := s.client.SendRequest(req)
-	if err != nil {
-		return nil, err
-	}
-
-	var orders []Order
-	if err := response.DecodeJSON(&orders); err != nil {
-		return nil, err
-	}
-
-	return orders, nil
-}
-
-// Options carry the option fields for REST API
-type Options map[string]interface{}