diff --git a/client/base.go b/client/base.go
index 8ea78f4d..81c3a9fc 100644
--- a/client/base.go
+++ b/client/base.go
@@ -26,7 +26,7 @@ import (
 )
 
 // NewClient 创建一个新的 QQ Client
-func NewClient(uin uint32, signUrl string, appInfo *auth.AppInfo) *QQClient {
+func NewClient(uin uint32, appInfo *auth.AppInfo, signUrl ...string) *QQClient {
 	client := &QQClient{
 		Uin:  uin,
 		oicq: oicq.NewCodec(int64(uin)),
@@ -36,9 +36,9 @@ func NewClient(uin uint32, signUrl string, appInfo *auth.AppInfo) *QQClient {
 		},
 		alive: true,
 	}
-	client.signProvider = sign.NewProviderURL(signUrl, func(msg string) {
+	client.signProvider = sign.NewProviderURL(func(msg string) {
 		client.debugln(msg)
-	})
+	}, signUrl...)
 	client.transport.Version = appInfo
 	client.transport.Sig.D2Key = make([]byte, 0, 16)
 	client.highwaySession.Uin = &client.transport.Sig.Uin
@@ -50,7 +50,7 @@ func NewClient(uin uint32, signUrl string, appInfo *auth.AppInfo) *QQClient {
 
 type QQClient struct {
 	Uin          uint32
-	signProvider sign.Provider
+	signProvider []sign.Provider
 
 	stat Statistics
 	once sync.Once
diff --git a/client/packet.go b/client/packet.go
index a865aecf..5a3902b7 100644
--- a/client/packet.go
+++ b/client/packet.go
@@ -9,8 +9,14 @@ import (
 func (c *QQClient) uniPacket(command string, body []byte) (uint32, []byte) {
 	seq := c.getAndIncreaseSequence()
 	var sign map[string]string
-	if c.signProvider != nil {
-		sign = c.signProvider(command, seq, body)
+	// todo: 实现自动选择sign
+	if len(c.signProvider) != 0 {
+		for _, signProvider := range c.signProvider {
+			if sign = signProvider(command, seq, body); sign == nil {
+				continue
+			}
+		}
+
 	}
 	req := network.Request{
 		SequenceID:  seq,
diff --git a/client/sign/http.go b/client/sign/http.go
index a07713ca..6fd81e3e 100644
--- a/client/sign/http.go
+++ b/client/sign/http.go
@@ -70,42 +70,46 @@ func containSignPKG(cmd string) bool {
 	return ok
 }
 
-func NewProviderURL(rawUrl string, log func(msg string)) func(string, uint32, []byte) map[string]string {
-	if rawUrl == "" {
+func NewProviderURL(log func(msg string), rawUrls ...string) []Provider {
+	if len(rawUrls) == 0 {
 		return nil
 	}
-	return func(cmd string, seq uint32, buf []byte) map[string]string {
-		if !containSignPKG(cmd) {
-			return nil
-		}
-		startTime := time.Now().UnixMilli()
-		resp := signResponse{}
-		sb := strings.Builder{}
-		sb.WriteString(`{"cmd":"` + cmd + `",`)
-		sb.WriteString(`"seq":` + strconv.Itoa(int(seq)) + `,`)
-		sb.WriteString(`"src":"` + fmt.Sprintf("%x", buf) + `"}`)
-		err := httpPost(rawUrl, bytes.NewReader(utils.S2B(sb.String())), 8*time.Second, &resp)
-		if err != nil || resp.Value.Sign == "" {
-			err := httpGet(rawUrl, map[string]string{
-				"cmd": cmd,
-				"seq": strconv.Itoa(int(seq)),
-				"src": fmt.Sprintf("%x", buf),
-			}, 8*time.Second, &resp)
-			if err != nil {
-				log(err.Error())
+	providers := make([]Provider, len(rawUrls))
+	for i, rawUrl := range rawUrls {
+		providers[i] = func(cmd string, seq uint32, buf []byte) map[string]string {
+			if !containSignPKG(cmd) {
 				return nil
 			}
-		}
+			startTime := time.Now().UnixMilli()
+			resp := signResponse{}
+			sb := strings.Builder{}
+			sb.WriteString(`{"cmd":"` + cmd + `",`)
+			sb.WriteString(`"seq":` + strconv.Itoa(int(seq)) + `,`)
+			sb.WriteString(`"src":"` + fmt.Sprintf("%x", buf) + `"}`)
+			err := httpPost(rawUrl, bytes.NewReader(utils.S2B(sb.String())), 8*time.Second, &resp)
+			if err != nil || resp.Value.Sign == "" {
+				err := httpGet(rawUrl, map[string]string{
+					"cmd": cmd,
+					"seq": strconv.Itoa(int(seq)),
+					"src": fmt.Sprintf("%x", buf),
+				}, 8*time.Second, &resp)
+				if err != nil {
+					log(err.Error())
+					return nil
+				}
+			}
 
-		log(fmt.Sprintf("signed for [%s:%d](%dms)",
-			cmd, seq, time.Now().UnixMilli()-startTime))
+			log(fmt.Sprintf("signed for [%s:%d](%dms)",
+				cmd, seq, time.Now().UnixMilli()-startTime))
 
-		return map[string]string{
-			"sign":  resp.Value.Sign,
-			"extra": resp.Value.Extra,
-			"token": resp.Value.Token,
+			return map[string]string{
+				"sign":  resp.Value.Sign,
+				"extra": resp.Value.Extra,
+				"token": resp.Value.Token,
+			}
 		}
 	}
+	return providers
 }
 
 func httpGet(rawUrl string, queryParams map[string]string, timeout time.Duration, target interface{}) error {
diff --git a/main.go b/main.go
index a2119e32..389861a7 100644
--- a/main.go
+++ b/main.go
@@ -31,7 +31,7 @@ func main() {
 		KernelVersion: "10.0.22631",
 	}
 
-	qqclient := client.NewClient(0, "https://sign.lagrangecore.org/api/sign", appInfo)
+	qqclient := client.NewClient(0, appInfo, "https://sign.lagrangecore.org/api/sign")
 	qqclient.SetLogger(protocolLogger{})
 	qqclient.UseDevice(deviceInfo)
 	data, err := os.ReadFile("sig.bin")