diff --git a/generate.go b/generate.go
index f0f8c44..30d153c 100644
--- a/generate.go
+++ b/generate.go
@@ -1,3 +1,9 @@
 package service
 
-//go:generate protoc -I./proto -I. --go-grpc_out=paths=source_relative:./proto --go_out=paths=source_relative:./proto --go-micro_out=components=micro|grpc,standalone=true,debug=true,paths=source_relative:./micro proto/service.proto
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go_out=paths=source_relative:./proto proto/service.proto"
+
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out=components=micro,debug=true,paths=source_relative:./proto proto/service.proto"
+
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out=components=grpc,standalone=true,debug=true,paths=source_relative:./grpc proto/service.proto"
+
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out=components=http,standalone=true,debug=true,paths=source_relative:./http proto/service.proto"
diff --git a/micro/service_micro_grpc.pb.go b/grpc/service_micro_grpc.pb.go
similarity index 87%
rename from micro/service_micro_grpc.pb.go
rename to grpc/service_micro_grpc.pb.go
index 3f63978..ff8451d 100644
--- a/micro/service_micro_grpc.pb.go
+++ b/grpc/service_micro_grpc.pb.go
@@ -1,5 +1,5 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v4.1.0
+// protoc-gen-go-micro version: v3.10.4
 // source: service.proto
 
 package servicepb
@@ -16,7 +16,7 @@ type configClient struct {
 	name string
 }
 
-func NewConfigClient(name string, c client.Client) ConfigClient {
+func NewConfigClient(name string, c client.Client) proto.ConfigClient {
 	return &configClient{c: c, name: name}
 }
 
@@ -39,7 +39,7 @@ func (c *configClient) Save(ctx context.Context, req *proto.SaveRequest, opts ..
 }
 
 type configServer struct {
-	ConfigServer
+	proto.ConfigServer
 }
 
 func (h *configServer) Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error {
@@ -50,7 +50,7 @@ func (h *configServer) Save(ctx context.Context, req *proto.SaveRequest, rsp *pr
 	return h.ConfigServer.Save(ctx, req, rsp)
 }
 
-func RegisterConfigServer(s server.Server, sh ConfigServer, opts ...server.HandlerOption) error {
+func RegisterConfigServer(s server.Server, sh proto.ConfigServer, opts ...server.HandlerOption) error {
 	type config interface {
 		Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error
 		Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error
diff --git a/http/service_micro_http.pb.go b/http/service_micro_http.pb.go
new file mode 100644
index 0000000..4e22e18
--- /dev/null
+++ b/http/service_micro_http.pb.go
@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-micro. DO NOT EDIT.
+// protoc-gen-go-micro version: v3.10.4
+// source: service.proto
+
+package servicepb
+
+import (
+	context "context"
+	v41 "go.unistack.org/micro-client-http/v4"
+	proto "go.unistack.org/micro-config-service/v4/proto"
+	v4 "go.unistack.org/micro-server-http/v4"
+	client "go.unistack.org/micro/v4/client"
+	server "go.unistack.org/micro/v4/server"
+	http "net/http"
+)
+
+var (
+	ConfigServerEndpoints = []v4.EndpointMetadata{
+		{
+			Name:   "Config.Load",
+			Path:   "/load",
+			Method: "GET",
+			Body:   "",
+			Stream: false,
+		},
+		{
+			Name:   "Config.Save",
+			Path:   "/save",
+			Method: "POST",
+			Body:   "*",
+			Stream: false,
+		},
+	}
+)
+
+type configClient struct {
+	c    client.Client
+	name string
+}
+
+func NewConfigClient(name string, c client.Client) proto.ConfigClient {
+	return &configClient{c: c, name: name}
+}
+
+func (c *configClient) Load(ctx context.Context, req *proto.LoadRequest, opts ...client.CallOption) (*proto.LoadResponse, error) {
+	errmap := make(map[string]interface{}, 1)
+	errmap["default"] = &proto.Error{}
+	opts = append(opts,
+		v41.ErrorMap(errmap),
+	)
+	opts = append(opts,
+		v41.Method(http.MethodGet),
+		v41.Path("/load"),
+	)
+	rsp := &proto.LoadResponse{}
+	err := c.c.Call(ctx, c.c.NewRequest(c.name, "Config.Load", req), rsp, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return rsp, nil
+}
+
+func (c *configClient) Save(ctx context.Context, req *proto.SaveRequest, opts ...client.CallOption) (*proto.SaveResponse, error) {
+	errmap := make(map[string]interface{}, 1)
+	errmap["default"] = &proto.Error{}
+	opts = append(opts,
+		v41.ErrorMap(errmap),
+	)
+	opts = append(opts,
+		v41.Method(http.MethodPost),
+		v41.Path("/save"),
+		v41.Body("*"),
+	)
+	rsp := &proto.SaveResponse{}
+	err := c.c.Call(ctx, c.c.NewRequest(c.name, "Config.Save", req), rsp, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return rsp, nil
+}
+
+type configServer struct {
+	proto.ConfigServer
+}
+
+func (h *configServer) Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error {
+	return h.ConfigServer.Load(ctx, req, rsp)
+}
+
+func (h *configServer) Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error {
+	return h.ConfigServer.Save(ctx, req, rsp)
+}
+
+func RegisterConfigServer(s server.Server, sh proto.ConfigServer, opts ...server.HandlerOption) error {
+	type config interface {
+		Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error
+		Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error
+	}
+	type Config struct {
+		config
+	}
+	h := &configServer{sh}
+	opts = append(opts, v4.HandlerEndpoints(ConfigServerEndpoints))
+	return s.Handle(s.NewHandler(&Config{h}, opts...))
+}
diff --git a/micro/service_micro.pb.go b/micro/service_micro.pb.go
deleted file mode 100644
index 2973480..0000000
--- a/micro/service_micro.pb.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-micro v4.1.0
-// - protoc              v5.29.3
-// source: service.proto
-
-package servicepb
-
-import (
-	context "context"
-	proto "go.unistack.org/micro-config-service/v4/proto"
-	client "go.unistack.org/micro/v4/client"
-)
-
-var (
-	ConfigName = "Config"
-)
-
-type ConfigClient interface {
-	Load(ctx context.Context, req *proto.LoadRequest, opts ...client.CallOption) (*proto.LoadResponse, error)
-	Save(ctx context.Context, req *proto.SaveRequest, opts ...client.CallOption) (*proto.SaveResponse, error)
-}
-
-type ConfigServer interface {
-	Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error
-	Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error
-}
diff --git a/proto/micro_errors.pb.go b/proto/micro_errors.pb.go
new file mode 100644
index 0000000..5f8e512
--- /dev/null
+++ b/proto/micro_errors.pb.go
@@ -0,0 +1,17 @@
+// Code generated by protoc-gen-go-micro. DO NOT EDIT.
+// protoc-gen-go-micro version: v3.10.4
+
+package servicepb
+
+import (
+	protojson "google.golang.org/protobuf/encoding/protojson"
+)
+
+var (
+	marshaler = protojson.MarshalOptions{}
+)
+
+func (m *Error) Error() string {
+	buf, _ := marshaler.Marshal(m)
+	return string(buf)
+}
diff --git a/proto/service.pb.go b/proto/service.pb.go
index 683347e..5d9a828 100644
--- a/proto/service.pb.go
+++ b/proto/service.pb.go
@@ -1,12 +1,14 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v5.29.3
+// 	protoc        v6.33.4
 // source: service.proto
 
 package servicepb
 
 import (
+	_ "go.unistack.org/micro-proto/v4/api"
+	_ "go.unistack.org/micro-proto/v4/openapiv3"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,11 +22,13 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// LoadRequest — запрос на загрузку конфигурации
 type LoadRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// service — имя сервиса для которого загружается конфигурация
 	Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
 }
 
@@ -67,11 +71,13 @@ func (x *LoadRequest) GetService() string {
 	return ""
 }
 
+// LoadResponse — ответ на запрос конфигурации
 type LoadResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// config — данные конфигурации в формате JSON/YAML
 	Config []byte `protobuf:"bytes,1,opt,name=config,proto3" json:"config,omitempty"`
 }
 
@@ -114,13 +120,16 @@ func (x *LoadResponse) GetConfig() []byte {
 	return nil
 }
 
+// SaveRequest — запрос на сохранение конфигурации
 type SaveRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// service — имя сервиса для которого сохраняется конфигурация
 	Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
-	Config  []byte `protobuf:"bytes,2,opt,name=config,proto3" json:"config,omitempty"`
+	// config — данные конфигурации в формате JSON/YAML
+	Config []byte `protobuf:"bytes,2,opt,name=config,proto3" json:"config,omitempty"`
 }
 
 func (x *SaveRequest) Reset() {
@@ -169,6 +178,8 @@ func (x *SaveRequest) GetConfig() []byte {
 	return nil
 }
 
+// SaveResponse — ответ на запрос сохранения конфигурации
+// Пустое сообщение, успешное сохранение подтверждается отсутствием ошибки
 type SaveResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -207,33 +218,83 @@ func (*SaveResponse) Descriptor() ([]byte, []int) {
 	return file_service_proto_rawDescGZIP(), []int{3}
 }
 
+// Error — сообщение об ошибке
+// Возвращается при возникновении ошибок в методах сервиса Config
+type Error struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *Error) Reset() {
+	*x = Error{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_service_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Error) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Error) ProtoMessage() {}
+
+func (x *Error) ProtoReflect() protoreflect.Message {
+	mi := &file_service_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Error.ProtoReflect.Descriptor instead.
+func (*Error) Descriptor() ([]byte, []int) {
+	return file_service_proto_rawDescGZIP(), []int{4}
+}
+
 var File_service_proto protoreflect.FileDescriptor
 
 var file_service_proto_rawDesc = []byte{
 	0x0a, 0x0d, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
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+	0xea, 0xff, 0xf9, 0x01, 0x0a, 0x22, 0x05, 0x2f, 0x73, 0x61, 0x76, 0x65, 0x3a, 0x01, 0x2a, 0x42,
+	0x39, 0x5a, 0x37, 0x67, 0x6f, 0x2e, 0x75, 0x6e, 0x69, 0x73, 0x74, 0x61, 0x63, 0x6b, 0x2e, 0x6f,
+	0x72, 0x67, 0x2f, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x2d, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2d,
+	0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2f, 0x76, 0x34, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x3b, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x33,
 }
 
 var (
@@ -248,12 +309,13 @@ func file_service_proto_rawDescGZIP() []byte {
 	return file_service_proto_rawDescData
 }
 
-var file_service_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_service_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
 var file_service_proto_goTypes = []interface{}{
 	(*LoadRequest)(nil),  // 0: service.LoadRequest
 	(*LoadResponse)(nil), // 1: service.LoadResponse
 	(*SaveRequest)(nil),  // 2: service.SaveRequest
 	(*SaveResponse)(nil), // 3: service.SaveResponse
+	(*Error)(nil),        // 4: service.Error
 }
 var file_service_proto_depIdxs = []int32{
 	0, // 0: service.Config.Load:input_type -> service.LoadRequest
@@ -321,6 +383,18 @@ func file_service_proto_init() {
 				return nil
 			}
 		}
+		file_service_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Error); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -328,7 +402,7 @@ func file_service_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_service_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   4,
+			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/proto/service.proto b/proto/service.proto
index b682b3f..57a05e9 100644
--- a/proto/service.proto
+++ b/proto/service.proto
@@ -3,22 +3,71 @@ syntax = "proto3";
 package service;
 option go_package="go.unistack.org/micro-config-service/v4/proto;servicepb";
 
+import "api/annotations.proto";
+import "openapiv3/annotations.proto";
+
+// Config — сервис управления конфигурациями
+// Предоставляет API для загрузки и сохранения конфигураций сервисов
 service Config {
-	rpc Load(LoadRequest) returns (LoadResponse) {};
-	rpc Save(SaveRequest) returns (SaveResponse) {};
+    // Load загружает конфигурацию для указанного сервиса
+    // Возвращает конфигурацию в формате JSON/YAML в поле config
+    rpc Load(LoadRequest) returns (LoadResponse) {
+        option (micro.openapiv3.openapiv3_operation) = {
+            operation_id: "Load";
+            responses: {
+                default: {
+                    reference: {
+                        _ref: ".service.Error";
+                    };
+                };
+            };
+        };
+        option (micro.api.http) = { get: "/load"; };
+    };
+    
+    // Save сохраняет конфигурацию для указанного сервиса
+    // Принимает конфигурацию в формате JSON/YAML в поле config
+    rpc Save(SaveRequest) returns (SaveResponse) {
+        option (micro.openapiv3.openapiv3_operation) = {
+            operation_id: "Save";
+            responses: {
+                default: {
+                    reference: {
+                        _ref: ".service.Error";
+                    };
+                };
+            };
+        };
+        option (micro.api.http) = { post: "/save"; body: "*"; };
+    };
 }
 
+// LoadRequest — запрос на загрузку конфигурации
 message LoadRequest {
-  string service = 1;
+    // service — имя сервиса для которого загружается конфигурация
+    string service = 1;
 };
 
+// LoadResponse — ответ на запрос конфигурации
 message LoadResponse {
-  bytes config = 1;
+    // config — данные конфигурации в формате JSON/YAML
+    bytes config = 1;
 };
 
+// SaveRequest — запрос на сохранение конфигурации
 message SaveRequest {
-  string service = 1;
-  bytes config = 2;
+    // service — имя сервиса для которого сохраняется конфигурация
+    string service = 1;
+    // config — данные конфигурации в формате JSON/YAML
+    bytes config = 2;
 };
 
+// SaveResponse — ответ на запрос сохранения конфигурации
+// Пустое сообщение, успешное сохранение подтверждается отсутствием ошибки
 message SaveResponse {};
+
+// Error — сообщение об ошибке
+// Возвращается при возникновении ошибок в методах сервиса Config
+message Error {
+
+}
\ No newline at end of file
diff --git a/proto/service_grpc.pb.go b/proto/service_grpc.pb.go
deleted file mode 100644
index 3a79848..0000000
--- a/proto/service_grpc.pb.go
+++ /dev/null
@@ -1,159 +0,0 @@
-// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.29.3
-// source: service.proto
-
-package servicepb
-
-import (
-	context "context"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-)
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.64.0 or later.
-const _ = grpc.SupportPackageIsVersion9
-
-const (
-	Config_Load_FullMethodName = "/service.Config/Load"
-	Config_Save_FullMethodName = "/service.Config/Save"
-)
-
-// ConfigClient is the client API for Config service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
-type ConfigClient interface {
-	Load(ctx context.Context, in *LoadRequest, opts ...grpc.CallOption) (*LoadResponse, error)
-	Save(ctx context.Context, in *SaveRequest, opts ...grpc.CallOption) (*SaveResponse, error)
-}
-
-type configClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewConfigClient(cc grpc.ClientConnInterface) ConfigClient {
-	return &configClient{cc}
-}
-
-func (c *configClient) Load(ctx context.Context, in *LoadRequest, opts ...grpc.CallOption) (*LoadResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(LoadResponse)
-	err := c.cc.Invoke(ctx, Config_Load_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *configClient) Save(ctx context.Context, in *SaveRequest, opts ...grpc.CallOption) (*SaveResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(SaveResponse)
-	err := c.cc.Invoke(ctx, Config_Save_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// ConfigServer is the server API for Config service.
-// All implementations must embed UnimplementedConfigServer
-// for forward compatibility.
-type ConfigServer interface {
-	Load(context.Context, *LoadRequest) (*LoadResponse, error)
-	Save(context.Context, *SaveRequest) (*SaveResponse, error)
-	mustEmbedUnimplementedConfigServer()
-}
-
-// UnimplementedConfigServer must be embedded to have
-// forward compatible implementations.
-//
-// NOTE: this should be embedded by value instead of pointer to avoid a nil
-// pointer dereference when methods are called.
-type UnimplementedConfigServer struct{}
-
-func (UnimplementedConfigServer) Load(context.Context, *LoadRequest) (*LoadResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Load not implemented")
-}
-func (UnimplementedConfigServer) Save(context.Context, *SaveRequest) (*SaveResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Save not implemented")
-}
-func (UnimplementedConfigServer) mustEmbedUnimplementedConfigServer() {}
-func (UnimplementedConfigServer) testEmbeddedByValue()                {}
-
-// UnsafeConfigServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to ConfigServer will
-// result in compilation errors.
-type UnsafeConfigServer interface {
-	mustEmbedUnimplementedConfigServer()
-}
-
-func RegisterConfigServer(s grpc.ServiceRegistrar, srv ConfigServer) {
-	// If the following call pancis, it indicates UnimplementedConfigServer was
-	// embedded by pointer and is nil.  This will cause panics if an
-	// unimplemented method is ever invoked, so we test this at initialization
-	// time to prevent it from happening at runtime later due to I/O.
-	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
-		t.testEmbeddedByValue()
-	}
-	s.RegisterService(&Config_ServiceDesc, srv)
-}
-
-func _Config_Load_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(LoadRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(ConfigServer).Load(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: Config_Load_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(ConfigServer).Load(ctx, req.(*LoadRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _Config_Save_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(SaveRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(ConfigServer).Save(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: Config_Save_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(ConfigServer).Save(ctx, req.(*SaveRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-// Config_ServiceDesc is the grpc.ServiceDesc for Config service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var Config_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "service.Config",
-	HandlerType: (*ConfigServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Load",
-			Handler:    _Config_Load_Handler,
-		},
-		{
-			MethodName: "Save",
-			Handler:    _Config_Save_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "service.proto",
-}
diff --git a/proto/service_micro.pb.go b/proto/service_micro.pb.go
new file mode 100644
index 0000000..520ca66
--- /dev/null
+++ b/proto/service_micro.pb.go
@@ -0,0 +1,26 @@
+// Code generated by protoc-gen-go-micro. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-micro v3.10.4
+// - protoc              v6.33.4
+// source: service.proto
+
+package servicepb
+
+import (
+	context "context"
+	client "go.unistack.org/micro/v4/client"
+)
+
+var (
+	ConfigName = "Config"
+)
+
+type ConfigClient interface {
+	Load(ctx context.Context, req *LoadRequest, opts ...client.CallOption) (*LoadResponse, error)
+	Save(ctx context.Context, req *SaveRequest, opts ...client.CallOption) (*SaveResponse, error)
+}
+
+type ConfigServer interface {
+	Load(ctx context.Context, req *LoadRequest, rsp *LoadResponse) error
+	Save(ctx context.Context, req *SaveRequest, rsp *SaveResponse) error
+}
diff --git a/service.go b/service.go
index 0c96b94..e7d3c98 100644
--- a/service.go
+++ b/service.go
@@ -5,7 +5,8 @@ import (
 	"fmt"
 
 	"dario.cat/mergo"
-	pbmicro "go.unistack.org/micro-config-service/v4/micro"
+	pbgrpc "go.unistack.org/micro-config-service/v4/grpc"
+	pbhttp "go.unistack.org/micro-config-service/v4/http"
 	pb "go.unistack.org/micro-config-service/v4/proto"
 	"go.unistack.org/micro/v4/client"
 	"go.unistack.org/micro/v4/config"
@@ -19,7 +20,7 @@ var DefaultStructTag = "service"
 type serviceConfig struct {
 	opts    config.Options
 	service string
-	client  pbmicro.ConfigClient
+	client  pb.ConfigClient
 }
 
 func (c *serviceConfig) Options() config.Options {
@@ -71,7 +72,14 @@ func (c *serviceConfig) Init(opts ...config.Option) error {
 		return nil
 	}
 
-	c.client = pbmicro.NewConfigClient(c.service, cli)
+	switch cli.String() {
+	case "http":
+		c.client = pbhttp.NewConfigClient(c.service, cli)
+	case "grpc":
+		c.client = pbgrpc.NewConfigClient(c.service, cli)
+	default:
+		return fmt.Errorf("unknown client option")
+	}
 
 	if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
 		return err