diff --git a/.env.example b/.env.example
index c27966e..34c0b63 100644
--- a/.env.example
+++ b/.env.example
@@ -8,11 +8,12 @@ NODE_HOST = "0.0.0.0"
 
 SSL_CERT_FILE = /var/lib/gozargah-node/certs/ssl_cert.pem
 SSL_KEY_FILE = /var/lib/gozargah-node/certs/ssl_key.pem
-SSL_CLIENT_CERT_FILE = /var/lib/gozargah-node/certs/ssl_client_cert.pem
+
+# api key must be a valid uuid (you can use any version you want)
+API_KEY = xxxxxxxx-yyyy-zzzz-mmmm-aaaaaaaaaaa
 
 ### can be rest or grpc
 # SERVICE_PROTOCOL = grpc
-# MAX_LOG_PER_REQUEST = 1000
 
 ### for developers
 # DEBUG = false
diff --git a/common/service.pb.go b/common/service.pb.go
index 88be547..2868630 100644
--- a/common/service.pb.go
+++ b/common/service.pb.go
@@ -108,8 +108,6 @@ type BaseInfoResponse struct {
 	Started     bool   `protobuf:"varint,1,opt,name=started,proto3" json:"started,omitempty"`
 	CoreVersion string `protobuf:"bytes,2,opt,name=core_version,json=coreVersion,proto3" json:"core_version,omitempty"`
 	NodeVersion string `protobuf:"bytes,3,opt,name=node_version,json=nodeVersion,proto3" json:"node_version,omitempty"`
-	SessionId   string `protobuf:"bytes,4,opt,name=session_id,json=sessionId,proto3" json:"session_id,omitempty"`
-	Extra       string `protobuf:"bytes,5,opt,name=extra,proto3" json:"extra,omitempty"`
 }
 
 func (x *BaseInfoResponse) Reset() {
@@ -163,20 +161,6 @@ func (x *BaseInfoResponse) GetNodeVersion() string {
 	return ""
 }
 
-func (x *BaseInfoResponse) GetSessionId() string {
-	if x != nil {
-		return x.SessionId
-	}
-	return ""
-}
-
-func (x *BaseInfoResponse) GetExtra() string {
-	if x != nil {
-		return x.Extra
-	}
-	return ""
-}
-
 type Backend struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1145,189 +1129,185 @@ var File_common_service_proto protoreflect.FileDescriptor
 var file_common_service_proto_rawDesc = []byte{
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-	0x74, 0x61, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1b, 0x2e, 0x73, 0x65, 0x72,
-	0x76, 0x69, 0x63, 0x65, 0x2e, 0x4f, 0x6e, 0x6c, 0x69, 0x6e, 0x65, 0x53, 0x74, 0x61, 0x74, 0x52,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x56, 0x0a, 0x18, 0x47, 0x65, 0x74,
-	0x55, 0x73, 0x65, 0x72, 0x4f, 0x6e, 0x6c, 0x69, 0x6e, 0x65, 0x49, 0x70, 0x4c, 0x69, 0x73, 0x74,
-	0x53, 0x74, 0x61, 0x74, 0x73, 0x12, 0x14, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e,
-	0x53, 0x74, 0x61, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x22, 0x2e, 0x73, 0x65,
-	0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x53, 0x74, 0x61, 0x74, 0x73, 0x4f, 0x6e, 0x6c, 0x69, 0x6e,
-	0x65, 0x49, 0x70, 0x4c, 0x69, 0x73, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
-	0x00, 0x12, 0x2d, 0x0a, 0x08, 0x53, 0x79, 0x6e, 0x63, 0x55, 0x73, 0x65, 0x72, 0x12, 0x0d, 0x2e,
-	0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x55, 0x73, 0x65, 0x72, 0x1a, 0x0e, 0x2e, 0x73,
-	0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x22, 0x00, 0x28, 0x01,
-	0x12, 0x2d, 0x0a, 0x09, 0x53, 0x79, 0x6e, 0x63, 0x55, 0x73, 0x65, 0x72, 0x73, 0x12, 0x0e, 0x2e,
-	0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x55, 0x73, 0x65, 0x72, 0x73, 0x1a, 0x0e, 0x2e,
-	0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x22, 0x00, 0x42,
-	0x18, 0x5a, 0x16, 0x6d, 0x61, 0x72, 0x7a, 0x62, 0x61, 0x6e, 0x5f, 0x6e, 0x6f, 0x64, 0x65, 0x5f,
-	0x67, 0x6f, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x33,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x22, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e,
+	0x53, 0x74, 0x61, 0x74, 0x73, 0x4f, 0x6e, 0x6c, 0x69, 0x6e, 0x65, 0x49, 0x70, 0x4c, 0x69, 0x73,
+	0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x2d, 0x0a, 0x08, 0x53,
+	0x79, 0x6e, 0x63, 0x55, 0x73, 0x65, 0x72, 0x12, 0x0d, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63,
+	0x65, 0x2e, 0x55, 0x73, 0x65, 0x72, 0x1a, 0x0e, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65,
+	0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x22, 0x00, 0x28, 0x01, 0x12, 0x2d, 0x0a, 0x09, 0x53, 0x79,
+	0x6e, 0x63, 0x55, 0x73, 0x65, 0x72, 0x73, 0x12, 0x0e, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63,
+	0x65, 0x2e, 0x55, 0x73, 0x65, 0x72, 0x73, 0x1a, 0x0e, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63,
+	0x65, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x22, 0x00, 0x42, 0x18, 0x5a, 0x16, 0x6d, 0x61, 0x72,
+	0x7a, 0x62, 0x61, 0x6e, 0x5f, 0x6e, 0x6f, 0x64, 0x65, 0x5f, 0x67, 0x6f, 0x2f, 0x63, 0x6f, 0x6d,
+	0x6d, 0x6f, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/common/service.proto b/common/service.proto
index 21e289d..62621f2 100644
--- a/common/service.proto
+++ b/common/service.proto
@@ -11,8 +11,6 @@ message BaseInfoResponse {
   bool started = 1;
   string core_version = 2;
   string node_version = 3;
-  string session_id = 4;
-  string extra = 5;
 }
 
 enum BackendType {
diff --git a/config/config.go b/config/config.go
index 8dd8b76..82f3955 100644
--- a/config/config.go
+++ b/config/config.go
@@ -1,6 +1,7 @@
 package config
 
 import (
+	"github.com/google/uuid"
 	"log"
 	"os"
 	"regexp"
@@ -20,10 +21,12 @@ func init() {
 	XrayAssetsPath = GetEnv("XRAY_ASSETS_PATH", "/usr/local/share/xray")
 	SslCertFile = GetEnv("SSL_CERT_FILE", "/var/lib/gozargah-node/certs/ssl_cert.pem")
 	SslKeyFile = GetEnv("SSL_KEY_FILE", "/var/lib/gozargah-node/certs/ssl_key.pem")
-	SslClientCertFile = GetEnv("SSL_CLIENT_CERT_FILE", "/var/lib/gozargah-node/certs/ssl_client_cert.pem")
+	ApiKey, err = GetEnvAsUUID("API_KEY")
+	if err != nil {
+		log.Printf("[Error] Faild to load API Key, error: %v", err)
+	}
 	GeneratedConfigPath = GetEnv("GENERATED_CONFIG_PATH", "/var/lib/gozargah-node/generated/")
 	ServiceProtocol = GetEnv("SERVICE_PROTOCOL", "grpc")
-	MaxLogPerRequest = GetEnvAsInt("MAX_LOG_PER_REQUEST", 1000)
 	Debug = GetEnvAsBool("DEBUG", false)
 	nodeHostStr := GetEnv("NODE_HOST", "0.0.0.0")
 
@@ -42,17 +45,16 @@ func init() {
 }
 
 // Warning: only use in tests
-func SetEnv(port, maxLogPerRequest int, host, xrayExecutablePath, xrayAssetsPath, sslCertFile, sslKeyFile, sslClientCertFile,
-	serviceProtocol, generatedConfigPath string, debug bool) {
+func SetEnv(port int, host, xrayExecutablePath, xrayAssetsPath, sslCertFile, sslKeyFile,
+	serviceProtocol, generatedConfigPath string, apiKey uuid.UUID, debug bool) {
 	ServicePort = port
 	NodeHost = host
 	XrayExecutablePath = xrayExecutablePath
 	XrayAssetsPath = xrayAssetsPath
 	SslCertFile = sslCertFile
 	SslKeyFile = sslKeyFile
-	SslClientCertFile = sslClientCertFile
+	ApiKey = apiKey
 	ServiceProtocol = serviceProtocol
-	MaxLogPerRequest = maxLogPerRequest
 	GeneratedConfigPath = generatedConfigPath
 	Debug = debug
 }
@@ -81,6 +83,16 @@ func GetEnvAsInt(name string, defaultVal int) int {
 	return defaultVal
 }
 
+func GetEnvAsUUID(name string) (uuid.UUID, error) {
+	valStr := GetEnv(name, "")
+
+	val, err := uuid.Parse(valStr)
+	if err != nil {
+		return uuid.Nil, err
+	}
+	return val, nil
+}
+
 var (
 	ServicePort         int
 	NodeHost            string
@@ -88,9 +100,8 @@ var (
 	XrayAssetsPath      string
 	SslCertFile         string
 	SslKeyFile          string
-	SslClientCertFile   string
+	ApiKey              uuid.UUID
 	ServiceProtocol     string
-	MaxLogPerRequest    int
 	Debug               bool
 	GeneratedConfigPath string
 )
diff --git a/controller/controller.go b/controller/controller.go
index 081932a..8f2d856 100644
--- a/controller/controller.go
+++ b/controller/controller.go
@@ -24,7 +24,7 @@ type Service interface {
 
 type Controller struct {
 	backend     backend.Backend
-	sessionID   uuid.UUID
+	ApiKey      uuid.UUID
 	apiPort     int
 	clientIP    string
 	lastRequest time.Time
@@ -36,21 +36,20 @@ type Controller struct {
 func (c *Controller) Init() {
 	c.mu.Lock()
 	defer c.mu.Unlock()
-	c.sessionID = uuid.Nil
+	c.ApiKey = config.ApiKey
 	c.apiPort = tools.FindFreePort()
 	_, c.cancelFunc = context.WithCancel(context.Background())
 }
 
-func (c *Controller) GetSessionID() uuid.UUID {
+func (c *Controller) GetApiKey() uuid.UUID {
 	c.mu.RLock()
 	defer c.mu.RUnlock()
-	return c.sessionID
+	return c.ApiKey
 }
 
 func (c *Controller) Connect(ip string, keepAlive uint64) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
-	c.sessionID = uuid.New()
 	c.lastRequest = time.Now()
 	c.clientIP = ip
 
@@ -76,7 +75,6 @@ func (c *Controller) Disconnect() {
 	apiPort := tools.FindFreePort()
 	c.apiPort = apiPort
 
-	c.sessionID = uuid.Nil
 	c.clientIP = ""
 }
 
@@ -160,7 +158,7 @@ func (c *Controller) GetStats() *common.SystemStatsResponse {
 	return c.stats
 }
 
-func (c *Controller) BaseInfoResponse(includeID bool, extra string) *common.BaseInfoResponse {
+func (c *Controller) BaseInfoResponse() *common.BaseInfoResponse {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
@@ -168,16 +166,12 @@ func (c *Controller) BaseInfoResponse(includeID bool, extra string) *common.Base
 		Started:     false,
 		CoreVersion: "",
 		NodeVersion: NodeVersion,
-		Extra:       extra,
 	}
 
 	if c.backend != nil {
 		response.Started = c.backend.Started()
 		response.CoreVersion = c.backend.GetVersion()
 	}
-	if includeID {
-		response.SessionId = c.sessionID.String()
-	}
 
 	return response
 }
diff --git a/controller/rest/base.go b/controller/rest/base.go
index a04d475..eed9ae0 100644
--- a/controller/rest/base.go
+++ b/controller/rest/base.go
@@ -13,7 +13,7 @@ import (
 )
 
 func (s *Service) Base(w http.ResponseWriter, _ *http.Request) {
-	common.SendProtoResponse(w, s.BaseInfoResponse(false, ""))
+	common.SendProtoResponse(w, s.BaseInfoResponse())
 }
 
 func (s *Service) Start(w http.ResponseWriter, r *http.Request) {
@@ -36,18 +36,15 @@ func (s *Service) Start(w http.ResponseWriter, r *http.Request) {
 
 	s.Connect(ip, keepAlive)
 
-	log.Println(ip, " connected, Session ID = ", s.GetSessionID())
-
 	if err = s.StartBackend(ctx, backendType); err != nil {
 		http.Error(w, err.Error(), http.StatusServiceUnavailable)
 		return
 	}
 
-	common.SendProtoResponse(w, s.BaseInfoResponse(true, ""))
+	common.SendProtoResponse(w, s.BaseInfoResponse())
 }
 
 func (s *Service) Stop(w http.ResponseWriter, _ *http.Request) {
-	log.Println(s.GetIP(), " disconnected, Session ID = ", s.GetSessionID())
 	s.Disconnect()
 
 	common.SendProtoResponse(w, &common.Empty{})
diff --git a/controller/rest/middleware.go b/controller/rest/middleware.go
index 4a8a72f..23bd777 100644
--- a/controller/rest/middleware.go
+++ b/controller/rest/middleware.go
@@ -2,56 +2,30 @@ package rest
 
 import (
 	"fmt"
-	"log"
-	"net"
-	"net/http"
-	"strings"
-
 	"github.com/go-chi/chi/v5/middleware"
 	"github.com/google/uuid"
+	"log"
+	"net/http"
 )
 
-func (s *Service) checkSessionIDMiddleware(next http.Handler) http.Handler {
+func (s *Service) validateApiKey(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		// check ip
-		clientIP := s.GetIP()
-		clientID := s.GetSessionID()
-		if clientIP == "" || clientID == uuid.Nil {
-			http.Error(w, "please connect first", http.StatusTooEarly)
-			return
-		}
-
-		// check ip
-		ip, _, err := net.SplitHostPort(r.RemoteAddr)
-		switch {
-		case err != nil:
-			http.Error(w, err.Error(), http.StatusBadRequest)
-			return
-		case ip != s.GetIP():
-			http.Error(w, "IP address is not valid", http.StatusForbidden)
-			return
-		}
-
-		authHeader := r.Header.Get("Authorization")
-		if authHeader == "" {
-			http.Error(w, "please connect first", http.StatusUnauthorized)
+		apiKeyHeader := r.Header.Get("x-api-key")
+		if apiKeyHeader == "" {
+			http.Error(w, "missing x-api-key header", http.StatusUnauthorized)
 			return
 		}
 
-		parts := strings.Split(authHeader, " ")
-		if len(parts) != 2 {
-			http.Error(w, "invalid Authorization header format", http.StatusUnauthorized)
-			return
-		}
+		// check API key
+		apiKey := s.GetApiKey()
 
-		tokenString := parts[1]
-		sessionID, err := uuid.Parse(tokenString)
+		key, err := uuid.Parse(apiKeyHeader)
 		switch {
 		case err != nil:
-			http.Error(w, "please send valid uuid", http.StatusUnprocessableEntity)
+			http.Error(w, "invalid api key format: must be a valid UUID", http.StatusUnprocessableEntity)
 			return
-		case sessionID != clientID:
-			http.Error(w, "session id mismatch.", http.StatusForbidden)
+		case key != apiKey:
+			http.Error(w, "api key mismatch", http.StatusForbidden)
 			return
 		}
 
diff --git a/controller/rest/rest_test.go b/controller/rest/rest_test.go
index fe515d2..268638e 100644
--- a/controller/rest/rest_test.go
+++ b/controller/rest/rest_test.go
@@ -30,8 +30,7 @@ var (
 	xrayAssetsPath      = "/usr/local/share/xray"
 	sslCertFile         = "../../certs/ssl_cert.pem"
 	sslKeyFile          = "../../certs/ssl_key.pem"
-	sslClientCertFile   = "../../certs/ssl_client_cert.pem"
-	sslClientKeyFile    = "../../certs/ssl_client_key.pem"
+	apiKey              = uuid.New()
 	generatedConfigPath = "../../generated/"
 	addr                = fmt.Sprintf("%s:%d", nodeHost, servicePort)
 	configPath          = "../../backend/xray/config.json"
@@ -52,8 +51,8 @@ func createHTTPClient(tlsConfig *tls.Config) *http.Client {
 }
 
 func TestRESTConnection(t *testing.T) {
-	config.SetEnv(servicePort, 1000, nodeHost, xrayExecutablePath, xrayAssetsPath,
-		sslCertFile, sslKeyFile, sslClientCertFile, "rest", generatedConfigPath, true)
+	config.SetEnv(servicePort, nodeHost, xrayExecutablePath, xrayAssetsPath,
+		sslCertFile, sslKeyFile, "rest", generatedConfigPath, apiKey, true)
 
 	nodeLogger.SetOutputMode(true)
 
@@ -65,12 +64,7 @@ func TestRESTConnection(t *testing.T) {
 		}
 	}
 
-	clientFileExists := tools.FileExists(sslClientCertFile)
-	if !clientFileExists {
-		t.Fatal("SSL_CLIENT_CERT_FILE is required.")
-	}
-
-	tlsConfig, err := tools.LoadTLSCredentials(sslCertFile, sslKeyFile, sslClientCertFile, false)
+	tlsConfig, err := tools.LoadTLSCredentials(sslCertFile, sslKeyFile)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -81,16 +75,14 @@ func TestRESTConnection(t *testing.T) {
 	}
 	defer s.Disconnect()
 
-	creds, err := tools.LoadTLSCredentials(sslClientCertFile, sslClientKeyFile, sslCertFile, true)
+	certPool, err := tools.LoadClientPool(sslCertFile)
 	if err != nil {
 		t.Fatal(err)
 	}
+	client := tools.CreateHTTPClient(certPool, nodeHost)
 
 	url := fmt.Sprintf("https://%s", addr)
 
-	client := createHTTPClient(creds)
-	sessionId := ""
-
 	createAuthenticatedRequest := func(method, endpoint string, data proto.Message, response proto.Message) error {
 		body, err := proto.Marshal(data)
 		if err != nil {
@@ -101,7 +93,7 @@ func TestRESTConnection(t *testing.T) {
 		if err != nil {
 			return err
 		}
-		req.Header.Set("Authorization", "Bearer "+sessionId)
+		req.Header.Set("x-api-key", apiKey.String())
 		if body != nil {
 			req.Header.Set("Content-Type", "application/x-protobuf")
 		}
@@ -124,7 +116,7 @@ func TestRESTConnection(t *testing.T) {
 		if err != nil {
 			return nil, err
 		}
-		req.Header.Set("Authorization", "Bearer "+sessionId)
+		req.Header.Set("x-api-key", apiKey.String())
 
 		resp, err := client.Do(req)
 		if err != nil {
@@ -207,11 +199,6 @@ func TestRESTConnection(t *testing.T) {
 		t.Fatalf("Failed to start backend: %v", err)
 	}
 
-	sessionId = baseInfoResp.GetSessionId()
-	if sessionId == "" {
-		t.Fatal("No session ID received")
-	}
-
 	var stats common.StatResponse
 	// Try To Get Outbounds Stats
 	if err = createAuthenticatedRequest("GET", "/stats/outbounds", &common.StatRequest{Reset_: true}, &stats); err != nil {
diff --git a/controller/rest/service.go b/controller/rest/service.go
index 4e3c509..99e5d5f 100644
--- a/controller/rest/service.go
+++ b/controller/rest/service.go
@@ -22,37 +22,32 @@ func (s *Service) setRouter() {
 
 	// Api Handlers
 	router.Use(LogRequest)
+	router.Use(s.validateApiKey)
 
 	router.Post("/start", s.Start)
-
-	router.Group(func(protected chi.Router) {
-		// check session and need to return data as context
-		protected.Use(s.checkSessionIDMiddleware)
-
-		protected.Get("/info", s.Base)
-		protected.Put("/stop", s.Stop)
-		protected.Get("/logs", s.GetLogs)
-
-		protected.Get("/stats/system", s.GetSystemStats)
-
-		protected.Group(func(private chi.Router) {
-			private.Use(s.checkBackendMiddleware)
-
-			// stats api
-			private.Route("/stats", func(statsGroup chi.Router) {
-				statsGroup.Get("/inbounds", s.GetInboundsStats)
-				statsGroup.Get("/inbound", s.GetInboundStats)
-				statsGroup.Get("/outbounds", s.GetOutboundsStats)
-				statsGroup.Get("/outbound", s.GetOutboundStats)
-				statsGroup.Get("/users", s.GetUsersStats)
-				statsGroup.Get("/user", s.GetUserStats)
-				statsGroup.Get("/user/online", s.GetUserOnlineStat)
-				statsGroup.Get("/user/online_ip", s.GetUserOnlineIpListStats)
-				statsGroup.Get("/backend", s.GetBackendStats)
-			})
-			private.Put("/user/sync", s.SyncUser)
-			private.Put("/users/sync", s.SyncUsers)
+	router.Get("/info", s.Base)
+	router.Put("/stop", s.Stop)
+	router.Get("/logs", s.GetLogs)
+
+	router.Get("/stats/system", s.GetSystemStats)
+
+	router.Group(func(private chi.Router) {
+		private.Use(s.checkBackendMiddleware)
+
+		// stats api
+		private.Route("/stats", func(statsGroup chi.Router) {
+			statsGroup.Get("/inbounds", s.GetInboundsStats)
+			statsGroup.Get("/inbound", s.GetInboundStats)
+			statsGroup.Get("/outbounds", s.GetOutboundsStats)
+			statsGroup.Get("/outbound", s.GetOutboundStats)
+			statsGroup.Get("/users", s.GetUsersStats)
+			statsGroup.Get("/user", s.GetUserStats)
+			statsGroup.Get("/user/online", s.GetUserOnlineStat)
+			statsGroup.Get("/user/online_ip", s.GetUserOnlineIpListStats)
+			statsGroup.Get("/backend", s.GetBackendStats)
 		})
+		private.Put("/user/sync", s.SyncUser)
+		private.Put("/users/sync", s.SyncUsers)
 	})
 
 	s.Router = router
diff --git a/controller/rpc/base.go b/controller/rpc/base.go
index 2867fb0..603591b 100644
--- a/controller/rpc/base.go
+++ b/controller/rpc/base.go
@@ -46,7 +46,7 @@ func (s *Service) Start(ctx context.Context, detail *common.Backend) (*common.Ba
 
 	s.Connect(clientIP, detail.GetKeepAlive())
 
-	return s.BaseInfoResponse(true, ""), nil
+	return s.BaseInfoResponse(), nil
 }
 
 func (s *Service) Stop(_ context.Context, _ *common.Empty) (*common.Empty, error) {
@@ -71,5 +71,5 @@ func (s *Service) detectBackend(ctx context.Context, detail *common.Backend) (co
 }
 
 func (s *Service) GetBaseInfo(_ context.Context, _ *common.Empty) (*common.BaseInfoResponse, error) {
-	return s.BaseInfoResponse(false, ""), nil
+	return s.BaseInfoResponse(), nil
 }
diff --git a/controller/rpc/middleware.go b/controller/rpc/middleware.go
index 19465b1..89dba60 100644
--- a/controller/rpc/middleware.go
+++ b/controller/rpc/middleware.go
@@ -15,56 +15,43 @@ import (
 	"google.golang.org/grpc/status"
 )
 
-func validateSessionID(ctx context.Context, s *Service) error {
+func validateApiKey(ctx context.Context, s *Service) error {
 	// Extract metadata
 	md, ok := metadata.FromIncomingContext(ctx)
 	if !ok {
 		return status.Errorf(codes.Unauthenticated, "missing metadata")
 	}
 
-	// Check session ID
-	sessionID := s.GetSessionID()
-	if sessionID == uuid.Nil {
-		return status.Errorf(codes.Unauthenticated, "please connect first")
+	// Extract x-api-key header
+	apiKeys, ok := md["x-api-key"]
+	if !ok || len(apiKeys) == 0 {
+		return status.Errorf(codes.Unauthenticated, "missing x-api-key header")
 	}
 
-	// Extract Authorization header
-	authHeader, ok := md["authorization"]
-	if !ok || len(authHeader) == 0 {
-		return status.Errorf(codes.Unauthenticated, "missing authorization header")
-	}
-
-	// Validate token format (Bearer <token>)
-	tokenParts := strings.Split(authHeader[0], " ")
-	if len(tokenParts) != 2 || tokenParts[0] != "Bearer" {
-		return status.Errorf(codes.InvalidArgument, "invalid authorization header format")
-	}
-
-	// Parse token
-	tokenString := tokenParts[1]
-	token, err := uuid.Parse(tokenString)
-	if err != nil {
-		return status.Errorf(codes.InvalidArgument, "invalid session ID: %v", err)
-	}
+	// Get the first key (there should typically be only one)
+	apiKeyHeader := apiKeys[0]
 
-	// Check if session ID matches
-	if token != sessionID {
-		return status.Errorf(codes.PermissionDenied, "session ID mismatch")
+	apiKey := s.GetApiKey()
+	key, err := uuid.Parse(apiKeyHeader)
+	switch {
+	case err != nil:
+		return status.Errorf(codes.InvalidArgument, "invalid api key format: must be a valid UUID")
+	case key != apiKey:
+		return status.Errorf(codes.PermissionDenied, "api key mismatch")
 	}
 
 	s.NewRequest()
-
 	return nil
 }
 
-func CheckSessionIDMiddleware(s *Service) grpc.UnaryServerInterceptor {
+func validateApiKeyMiddleware(s *Service) grpc.UnaryServerInterceptor {
 	return func(
 		ctx context.Context,
 		req interface{},
 		info *grpc.UnaryServerInfo,
 		handler grpc.UnaryHandler,
 	) (interface{}, error) {
-		if err := validateSessionID(ctx, s); err != nil {
+		if err := validateApiKey(ctx, s); err != nil {
 			return nil, err
 		}
 
@@ -72,7 +59,7 @@ func CheckSessionIDMiddleware(s *Service) grpc.UnaryServerInterceptor {
 	}
 }
 
-func CheckSessionIDStreamMiddleware(s *Service) grpc.StreamServerInterceptor {
+func validateApiKeyStreamMiddleware(s *Service) grpc.StreamServerInterceptor {
 	return func(
 		srv interface{},
 		ss grpc.ServerStream,
@@ -80,8 +67,8 @@ func CheckSessionIDStreamMiddleware(s *Service) grpc.StreamServerInterceptor {
 		handler grpc.StreamHandler,
 	) error {
 		// Use common session validation logic
-		if err := validateSessionID(ss.Context(), s); err != nil {
-			log.Println("invalid session ID stream:", err)
+		if err := validateApiKey(ss.Context(), s); err != nil {
+			log.Println("invalid api key stream:", err)
 			return err
 		}
 
@@ -200,24 +187,6 @@ var backendMethods = map[string]bool{
 	"/service.NodeService/SyncUsers":                true,
 }
 
-var sessionIDMethods = map[string]bool{
-	"/service.NodeService/Stop":                     true,
-	"/service.NodeService/GetBaseInfo":              true,
-	"/service.NodeService/GetLogs":                  true,
-	"/service.NodeService/GetSystemStats":           true,
-	"/service.NodeService/GetOutboundsStats":        true,
-	"/service.NodeService/GetOutboundStats":         true,
-	"/service.NodeService/GetInboundsStats":         true,
-	"/service.NodeService/GetInboundStats":          true,
-	"/service.NodeService/GetUsersStats":            true,
-	"/service.NodeService/GetUserStats":             true,
-	"/service.NodeService/GetUserOnlineStats":       true,
-	"/service.NodeService/GetUserOnlineIpListStats": true,
-	"/service.NodeService/GetBackendStats":          true,
-	"/service.NodeService/SyncUser":                 true,
-	"/service.NodeService/SyncUsers":                true,
-}
-
 func ConditionalMiddleware(s *Service) grpc.UnaryServerInterceptor {
 	return func(
 		ctx context.Context,
@@ -229,9 +198,7 @@ func ConditionalMiddleware(s *Service) grpc.UnaryServerInterceptor {
 
 		interceptors = append(interceptors, LoggingInterceptor)
 
-		if sessionIDMethods[info.FullMethod] {
-			interceptors = append(interceptors, CheckSessionIDMiddleware(s))
-		}
+		interceptors = append(interceptors, validateApiKeyMiddleware(s))
 
 		if backendMethods[info.FullMethod] {
 			interceptors = append(interceptors, CheckBackendMiddleware(s))
@@ -253,9 +220,7 @@ func ConditionalStreamMiddleware(s *Service) grpc.StreamServerInterceptor {
 
 		interceptors = append(interceptors, LoggingStreamInterceptor())
 
-		if sessionIDMethods[info.FullMethod] {
-			interceptors = append(interceptors, CheckSessionIDStreamMiddleware(s))
-		}
+		interceptors = append(interceptors, validateApiKeyStreamMiddleware(s))
 
 		if backendMethods[info.FullMethod] {
 			interceptors = append(interceptors, CheckBackendStreamMiddleware(s))
diff --git a/controller/rpc/rpc_test.go b/controller/rpc/rpc_test.go
index 13c634c..639f8a1 100644
--- a/controller/rpc/rpc_test.go
+++ b/controller/rpc/rpc_test.go
@@ -23,22 +23,21 @@ import (
 )
 
 var (
-	servicePort         = 8001
+	servicePort         = 8002
 	nodeHost            = "127.0.0.1"
 	xrayExecutablePath  = "/usr/local/bin/xray"
 	xrayAssetsPath      = "/usr/local/share/xray"
 	sslCertFile         = "../../certs/ssl_cert.pem"
 	sslKeyFile          = "../../certs/ssl_key.pem"
-	sslClientCertFile   = "../../certs/ssl_client_cert.pem"
-	sslClientKeyFile    = "../../certs/ssl_client_key.pem"
+	apiKey              = uuid.New()
 	generatedConfigPath = "../../generated/"
 	addr                = fmt.Sprintf("%s:%d", nodeHost, servicePort)
 	configPath          = "../../backend/xray/config.json"
 )
 
 func TestGRPCConnection(t *testing.T) {
-	config.SetEnv(servicePort, 0, nodeHost, xrayExecutablePath, xrayAssetsPath, sslCertFile,
-		sslKeyFile, sslClientCertFile, "grpc", generatedConfigPath, true)
+	config.SetEnv(servicePort, nodeHost, xrayExecutablePath, xrayAssetsPath, sslCertFile,
+		sslKeyFile, "grpc", generatedConfigPath, apiKey, true)
 
 	nodeLogger.SetOutputMode(true)
 
@@ -50,17 +49,8 @@ func TestGRPCConnection(t *testing.T) {
 			t.Fatal(err)
 		}
 	}
-	clientCertFileExists := tools.FileExists(sslClientCertFile)
-	if !clientCertFileExists {
-		t.Fatal("SSL_CLIENT_CERT_FILE is required.")
-	}
-
-	clientKeyFileExists := tools.FileExists(sslClientCertFile)
-	if !clientKeyFileExists {
-		t.Fatal("SSL_CLIENT_KEY_FILE is required.")
-	}
 
-	tlsConfig, err := tools.LoadTLSCredentials(sslCertFile, sslKeyFile, sslClientCertFile, false)
+	tlsConfig, err := tools.LoadTLSCredentials(sslCertFile, sslKeyFile)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -71,12 +61,17 @@ func TestGRPCConnection(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	creds, err := tools.LoadTLSCredentials(sslClientCertFile, sslClientKeyFile, sslCertFile, true)
+	certPool, err := tools.LoadClientPool(sslCertFile)
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	conn, err := grpc.NewClient(addr, grpc.WithTransportCredentials(credentials.NewTLS(creds)))
+	creds := credentials.NewClientTLSFromCert(certPool, "")
+	opts := []grpc.DialOption{
+		grpc.WithTransportCredentials(creds),
+	}
+
+	conn, err := grpc.NewClient(addr, opts...)
 	if err != nil {
 		t.Fatalf("Failed to connect to gRPC server: %v", err)
 	}
@@ -89,22 +84,14 @@ func TestGRPCConnection(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	baseCtx := context.Background()
-
-	ctx, cancel := context.WithTimeout(baseCtx, 5*time.Second)
-	defer cancel()
-
-	_, err = client.GetBaseInfo(ctx, &common.Empty{})
-	if err != nil {
-		log.Println("info error: ", err)
-	} else {
-		t.Fatal("expected session ID error")
-	}
+	// Add SessionId to the metadata
+	md := metadata.Pairs("x-api-key", apiKey.String())
+	ctxWithSession := metadata.NewOutgoingContext(context.Background(), md)
 
-	ctx, cancel = context.WithTimeout(baseCtx, 5*time.Second)
+	ctx, cancel := context.WithTimeout(ctxWithSession, 5*time.Second)
 	defer cancel()
 
-	info, err := client.Start(ctx,
+	_, err = client.Start(ctx,
 		&common.Backend{
 			Type:      common.BackendType_XRAY,
 			Config:    string(configFile),
@@ -114,13 +101,6 @@ func TestGRPCConnection(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	sessionID := info.SessionId
-	log.Println("Session ID:", sessionID)
-
-	// Add SessionId to the metadata
-	md := metadata.Pairs("authorization", "Bearer "+info.SessionId)
-	ctxWithSession := metadata.NewOutgoingContext(context.Background(), md)
-
 	// test all methods
 	ctx, cancel = context.WithTimeout(ctxWithSession, 5*time.Second)
 	defer cancel()
@@ -314,7 +294,7 @@ loop:
 	// test keep alive
 	time.Sleep(16 * time.Second)
 
-	ctx, cancel = context.WithTimeout(ctxWithSession, 5*time.Second)
+	ctx, cancel = context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
 	_, err = client.GetBaseInfo(ctx, &common.Empty{})
diff --git a/docker-compose.yml b/docker-compose.yml
index 150dbd8..7ff33c5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -12,7 +12,8 @@ services:
 
       SSL_CERT_FILE: "/var/lib/gozargah-node/certs/ssl_cert.pem"
       SSL_KEY_FILE: "/var/lib/gozargah-node/certs/ssl_key.pem"
-      SSL_CLIENT_CERT_FILE: "/var/lib/gozargah-node/certs/ssl_client_cert.pem"
+      # api key must be a valid uuid (you can use any version you want)
+      # API_KEY: xxxxxxxx-yyyy-zzzz-mmmm-aaaaaaaaaaa
 
       GENERATED_CONFIG_PATH: "/var/lib/gozargah-node/generated"
 
diff --git a/main.go b/main.go
index 168af63..6ce3624 100644
--- a/main.go
+++ b/main.go
@@ -22,13 +22,12 @@ func main() {
 
 	addr := fmt.Sprintf("%s:%d", config.NodeHost, config.ServicePort)
 
-	tlsConfig, err := tools.LoadTLSCredentials(config.SslCertFile, config.SslKeyFile,
-		config.SslClientCertFile, false)
+	tlsConfig, err := tools.LoadTLSCredentials(config.SslCertFile, config.SslKeyFile)
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	log.Printf("Starting Node Version: %s", controller.NodeVersion)
+	log.Printf("Starting Node: v%s", controller.NodeVersion)
 
 	var shutdownFunc func(ctx context.Context) error
 	var service controller.Service
diff --git a/tools/tls.go b/tools/tls.go
index 9f22925..073730b 100644
--- a/tools/tls.go
+++ b/tools/tls.go
@@ -4,33 +4,51 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
+	"net/http"
 	"os"
+	"time"
 )
 
-func LoadTLSCredentials(cert, key, poolCert string, isClient bool) (*tls.Config, error) {
-	pem, err := os.ReadFile(poolCert)
+func LoadTLSCredentials(cert, key string) (*tls.Config, error) {
+	serverCert, err := tls.LoadX509KeyPair(cert, key)
 	if err != nil {
 		return nil, err
 	}
 
-	certPool := x509.NewCertPool()
-	if !certPool.AppendCertsFromPEM(pem) {
-		return nil, fmt.Errorf("failed to add CA's certificate")
+	config := &tls.Config{
+		Certificates: []tls.Certificate{serverCert},
+		ClientAuth:   tls.NoClientCert,
 	}
+	return config, nil
+}
 
-	serverCert, err := tls.LoadX509KeyPair(cert, key)
+func LoadClientPool(cert string) (*x509.CertPool, error) {
+	pemServerCA, err := os.ReadFile(cert)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to read server certificate: %v", err)
 	}
 
-	config := &tls.Config{
-		Certificates: []tls.Certificate{serverCert},
+	certPool, err := x509.SystemCertPool()
+	if err != nil {
+		certPool = x509.NewCertPool()
 	}
-	if isClient {
-		config.RootCAs = certPool
-	} else {
-		config.ClientAuth = tls.RequireAndVerifyClientCert
-		config.ClientCAs = certPool
+	if !certPool.AppendCertsFromPEM(pemServerCA) {
+		return nil, fmt.Errorf("failed to add server CA's certificate")
+	}
+
+	return certPool, nil
+}
+
+func CreateHTTPClient(certPool *x509.CertPool, hostname string) *http.Client {
+	tlsConfig := &tls.Config{RootCAs: certPool, ServerName: hostname}
+	transport := &http.Transport{
+		TLSClientConfig: tlsConfig,
+		Protocols:       new(http.Protocols),
+	}
+	transport.Protocols.SetHTTP2(true)
+
+	return &http.Client{
+		Transport: transport,
+		Timeout:   10 * time.Second,
 	}
-	return config, nil
 }