diff --git a/api/v1/service_manage/request.proto b/api/v1/service_manage/request.proto
index 3757fba..1587cc2 100644
--- a/api/v1/service_manage/request.proto
+++ b/api/v1/service_manage/request.proto
@@ -3,6 +3,7 @@ syntax = "proto3";
 package v1;
 
 import "service.proto";
+import "contract.proto";
 
 option go_package = "github.com/polarismesh/specification/source/go/api/v1/service_manage";
 option java_package = "com.tencent.polaris.specification.api.v1.service.manage";
@@ -30,6 +31,7 @@ message DiscoverRequest {
   DiscoverRequestType type = 1;
   Service service = 2;
   reserved 3 to 4;
-  DiscoverFilter Filter = 30; 
+  DiscoverFilter Filter = 30;
+  ServiceContract service_contract = 31;
 }
 
diff --git a/source/go/api/v1/service_manage/request.pb.go b/source/go/api/v1/service_manage/request.pb.go
index 95ce72f..ef6d1fd 100644
--- a/source/go/api/v1/service_manage/request.pb.go
+++ b/source/go/api/v1/service_manage/request.pb.go
@@ -62,7 +62,7 @@ func (x DiscoverRequest_DiscoverRequestType) String() string {
 	return proto.EnumName(DiscoverRequest_DiscoverRequestType_name, int32(x))
 }
 func (DiscoverRequest_DiscoverRequestType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_request_15ca4e992c3d6be5, []int{1, 0}
+	return fileDescriptor_request_629075ca61fde1db, []int{1, 0}
 }
 
 type DiscoverFilter struct {
@@ -76,7 +76,7 @@ func (m *DiscoverFilter) Reset()         { *m = DiscoverFilter{} }
 func (m *DiscoverFilter) String() string { return proto.CompactTextString(m) }
 func (*DiscoverFilter) ProtoMessage()    {}
 func (*DiscoverFilter) Descriptor() ([]byte, []int) {
-	return fileDescriptor_request_15ca4e992c3d6be5, []int{0}
+	return fileDescriptor_request_629075ca61fde1db, []int{0}
 }
 func (m *DiscoverFilter) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_DiscoverFilter.Unmarshal(m, b)
@@ -107,6 +107,7 @@ type DiscoverRequest struct {
 	Type                 DiscoverRequest_DiscoverRequestType `protobuf:"varint,1,opt,name=type,proto3,enum=v1.DiscoverRequest_DiscoverRequestType" json:"type,omitempty"`
 	Service              *Service                            `protobuf:"bytes,2,opt,name=service,proto3" json:"service,omitempty"`
 	Filter               *DiscoverFilter                     `protobuf:"bytes,30,opt,name=Filter,proto3" json:"Filter,omitempty"`
+	ServiceContract      *ServiceContract                    `protobuf:"bytes,31,opt,name=service_contract,json=serviceContract,proto3" json:"service_contract,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}                            `json:"-"`
 	XXX_unrecognized     []byte                              `json:"-"`
 	XXX_sizecache        int32                               `json:"-"`
@@ -116,7 +117,7 @@ func (m *DiscoverRequest) Reset()         { *m = DiscoverRequest{} }
 func (m *DiscoverRequest) String() string { return proto.CompactTextString(m) }
 func (*DiscoverRequest) ProtoMessage()    {}
 func (*DiscoverRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_request_15ca4e992c3d6be5, []int{1}
+	return fileDescriptor_request_629075ca61fde1db, []int{1}
 }
 func (m *DiscoverRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_DiscoverRequest.Unmarshal(m, b)
@@ -157,41 +158,50 @@ func (m *DiscoverRequest) GetFilter() *DiscoverFilter {
 	return nil
 }
 
+func (m *DiscoverRequest) GetServiceContract() *ServiceContract {
+	if m != nil {
+		return m.ServiceContract
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*DiscoverFilter)(nil), "v1.DiscoverFilter")
 	proto.RegisterType((*DiscoverRequest)(nil), "v1.DiscoverRequest")
 	proto.RegisterEnum("v1.DiscoverRequest_DiscoverRequestType", DiscoverRequest_DiscoverRequestType_name, DiscoverRequest_DiscoverRequestType_value)
 }
 
-func init() { proto.RegisterFile("request.proto", fileDescriptor_request_15ca4e992c3d6be5) }
-
-var fileDescriptor_request_15ca4e992c3d6be5 = []byte{
-	// 432 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x92, 0xc1, 0x6e, 0xd3, 0x40,
-	0x10, 0x86, 0x71, 0x9a, 0x26, 0xd1, 0x24, 0x71, 0x57, 0x1b, 0x0e, 0x11, 0x07, 0x54, 0x45, 0x42,
-	0x54, 0x1c, 0x6c, 0x52, 0x0e, 0x1c, 0x38, 0x39, 0xce, 0x16, 0x4c, 0x53, 0xbb, 0x5a, 0xaf, 0x41,
-	0xe2, 0x62, 0xb9, 0xab, 0x25, 0x59, 0x29, 0xf1, 0x1a, 0x7b, 0x63, 0x29, 0x0f, 0xc1, 0x23, 0xf1,
-	0x3c, 0xbc, 0x06, 0xda, 0xd8, 0x91, 0x68, 0xd5, 0xe3, 0xcc, 0x3f, 0xff, 0xf7, 0x8f, 0x3d, 0x0b,
-	0xe3, 0x52, 0xfc, 0xda, 0x8b, 0x4a, 0x3b, 0x45, 0xa9, 0xb4, 0xc2, 0x9d, 0x7a, 0xfe, 0x6a, 0x5c,
-	0x89, 0xb2, 0x96, 0x5c, 0x34, 0xad, 0xd9, 0x02, 0xec, 0xa5, 0xac, 0xb8, 0xaa, 0x45, 0x79, 0x23,
-	0xb7, 0x5a, 0x94, 0xf8, 0x3d, 0x4c, 0xa2, 0x7c, 0x7b, 0xf8, 0x22, 0xb2, 0xad, 0xde, 0x1c, 0x82,
-	0xbc, 0xd2, 0x59, 0xce, 0xc5, 0xd4, 0xba, 0xb4, 0xae, 0x06, 0xf4, 0x39, 0x69, 0xf6, 0xb7, 0x03,
-	0x17, 0x27, 0x08, 0x6d, 0x02, 0xf1, 0x27, 0xe8, 0xea, 0x43, 0xd1, 0xd8, 0xec, 0xeb, 0xb7, 0x4e,
-	0x3d, 0x77, 0x9e, 0x8c, 0x3c, 0xad, 0xd9, 0xa1, 0x10, 0xf4, 0x68, 0xc2, 0x6f, 0xa0, 0xdf, 0x6e,
-	0x39, 0xed, 0x5c, 0x5a, 0x57, 0xc3, 0xeb, 0xa1, 0xf1, 0xc7, 0x4d, 0x8b, 0x9e, 0x34, 0xfc, 0x0e,
-	0x7a, 0xcd, 0xce, 0xd3, 0xd7, 0xc7, 0x29, 0xfc, 0x7f, 0x4a, 0xa3, 0xd0, 0x76, 0x62, 0xf6, 0xc7,
-	0x82, 0xc9, 0x33, 0x81, 0x78, 0x08, 0xfd, 0x24, 0xbc, 0x0d, 0xa3, 0xef, 0x21, 0x7a, 0x81, 0x47,
-	0x30, 0x08, 0xc2, 0x98, 0x79, 0xa1, 0x4f, 0x90, 0x65, 0x24, 0x7f, 0x95, 0xc4, 0x8c, 0x50, 0xd4,
-	0x31, 0x05, 0x8d, 0x12, 0x16, 0x84, 0x9f, 0xd1, 0x19, 0xb6, 0x01, 0xa8, 0xc7, 0x48, 0xba, 0x0a,
-	0xee, 0x02, 0x86, 0xba, 0x78, 0x02, 0x17, 0x7e, 0x40, 0xfd, 0x24, 0x60, 0xe9, 0x82, 0x12, 0xef,
-	0x96, 0x50, 0x74, 0x6e, 0x60, 0x31, 0xa1, 0xdf, 0x02, 0x9f, 0xc4, 0xa8, 0x67, 0x2c, 0xa1, 0x77,
-	0x47, 0xe2, 0x7b, 0xcf, 0xd4, 0x23, 0x8c, 0xc1, 0xbe, 0xf1, 0x92, 0x15, 0x4b, 0x97, 0x84, 0x11,
-	0x9f, 0x45, 0x14, 0x8d, 0xf1, 0x4b, 0x40, 0xad, 0x23, 0xf5, 0xa3, 0x90, 0x51, 0xcf, 0x67, 0xc8,
-	0x9e, 0x75, 0x07, 0x7d, 0x34, 0xfc, 0xda, 0x1d, 0x9c, 0xa1, 0xf3, 0xc5, 0x6f, 0x0b, 0x3e, 0x72,
-	0xb5, 0x73, 0xb4, 0xc8, 0xb9, 0xc8, 0xb5, 0x53, 0xa8, 0x6d, 0x56, 0xca, 0xca, 0xa9, 0x0a, 0xc1,
-	0xe5, 0x4f, 0xc9, 0x33, 0x2d, 0x55, 0xee, 0x64, 0x85, 0x34, 0x7f, 0xe2, 0x74, 0xe8, 0x5d, 0x96,
-	0x67, 0x6b, 0xb1, 0x18, 0xb5, 0x9f, 0x7d, 0x6f, 0xee, 0xfe, 0x63, 0xb9, 0x96, 0x7a, 0xb3, 0x7f,
-	0x70, 0xb8, 0xda, 0xb9, 0x2d, 0x65, 0x27, 0xaa, 0x8d, 0xfb, 0x88, 0xe4, 0x56, 0x6a, 0x5f, 0x72,
-	0xe1, 0xae, 0x95, 0x9b, 0x15, 0xd2, 0xad, 0xe7, 0x6e, 0xcb, 0x4c, 0x1b, 0xe6, 0x43, 0xef, 0xf8,
-	0x88, 0x3e, 0xfc, 0x0b, 0x00, 0x00, 0xff, 0xff, 0xf5, 0xa7, 0xc3, 0x97, 0x68, 0x02, 0x00, 0x00,
+func init() { proto.RegisterFile("request.proto", fileDescriptor_request_629075ca61fde1db) }
+
+var fileDescriptor_request_629075ca61fde1db = []byte{
+	// 462 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x92, 0xd1, 0x6e, 0xda, 0x30,
+	0x14, 0x86, 0x17, 0xa0, 0x80, 0x0c, 0x04, 0xcb, 0xec, 0x02, 0xf5, 0x62, 0xab, 0x90, 0xa6, 0x55,
+	0xbb, 0x48, 0x46, 0x77, 0xb1, 0x8b, 0x49, 0x93, 0x42, 0x70, 0xb7, 0xac, 0x34, 0x54, 0x8e, 0xb3,
+	0x49, 0xbb, 0x89, 0x5c, 0xcb, 0x03, 0x4b, 0x10, 0x67, 0xb1, 0x89, 0xc4, 0x43, 0xec, 0x39, 0xf6,
+	0x14, 0x7b, 0xb7, 0x29, 0x24, 0x91, 0xda, 0xaa, 0x97, 0xe7, 0xfc, 0xe7, 0xfb, 0xf3, 0xe7, 0xf8,
+	0x80, 0x51, 0x2e, 0x7e, 0x1f, 0x84, 0x36, 0x4e, 0x96, 0x2b, 0xa3, 0x50, 0xab, 0x98, 0x9f, 0x8f,
+	0xb4, 0xc8, 0x0b, 0xc9, 0x45, 0xd5, 0x3a, 0xb7, 0xb9, 0x4a, 0x4d, 0xce, 0x78, 0x3d, 0x32, 0x5b,
+	0x00, 0x7b, 0x29, 0x35, 0x57, 0x85, 0xc8, 0xaf, 0xe5, 0xce, 0x88, 0x1c, 0xbd, 0x07, 0x93, 0x75,
+	0xba, 0x3b, 0x7e, 0x15, 0x6c, 0x67, 0xb6, 0xc7, 0x20, 0xd5, 0x86, 0xa5, 0x5c, 0x4c, 0xad, 0x0b,
+	0xeb, 0xb2, 0x4f, 0x9e, 0x93, 0x66, 0x7f, 0xdb, 0x60, 0xdc, 0x98, 0x90, 0x2a, 0x00, 0xfa, 0x04,
+	0x3a, 0xe6, 0x98, 0x55, 0x98, 0x7d, 0xf5, 0xd6, 0x29, 0xe6, 0xce, 0x93, 0x91, 0xa7, 0x35, 0x3d,
+	0x66, 0x82, 0x9c, 0x20, 0xf4, 0x06, 0xf4, 0xea, 0xd4, 0xd3, 0xd6, 0x85, 0x75, 0x39, 0xb8, 0x1a,
+	0x94, 0x7c, 0x54, 0xb5, 0x48, 0xa3, 0xa1, 0x77, 0xa0, 0x5b, 0x65, 0x9e, 0xbe, 0x3a, 0x4d, 0xa1,
+	0x87, 0x5f, 0xa9, 0x14, 0x52, 0x4f, 0xa0, 0xcf, 0x00, 0xd6, 0x58, 0xd2, 0x6c, 0x60, 0xfa, 0xfa,
+	0x44, 0x4d, 0x1e, 0x78, 0xfb, 0xb5, 0x44, 0xc6, 0xfa, 0x71, 0x63, 0xf6, 0xcf, 0x02, 0x93, 0x67,
+	0x02, 0xa3, 0x01, 0xe8, 0xc5, 0xe1, 0x4d, 0xb8, 0xfe, 0x11, 0xc2, 0x17, 0x68, 0x08, 0xfa, 0x41,
+	0x18, 0x51, 0x2f, 0xf4, 0x31, 0xb4, 0x4a, 0xc9, 0x5f, 0xc5, 0x11, 0xc5, 0x04, 0xb6, 0xca, 0x82,
+	0xac, 0x63, 0x1a, 0x84, 0x5f, 0x60, 0x1b, 0xd9, 0x00, 0x10, 0x8f, 0xe2, 0x64, 0x15, 0xdc, 0x06,
+	0x14, 0x76, 0xd0, 0x04, 0x8c, 0xfd, 0x80, 0xf8, 0x71, 0x40, 0x93, 0x05, 0xc1, 0xde, 0x0d, 0x26,
+	0xf0, 0xac, 0x34, 0x8b, 0x30, 0xf9, 0x1e, 0xf8, 0x38, 0x82, 0xdd, 0x12, 0x09, 0xbd, 0x5b, 0x1c,
+	0xdd, 0x79, 0x65, 0x3d, 0x44, 0x08, 0xd8, 0xd7, 0x5e, 0xbc, 0xa2, 0xc9, 0x12, 0x53, 0xec, 0xd3,
+	0x35, 0x81, 0x23, 0xf4, 0x12, 0xc0, 0x9a, 0x48, 0xfc, 0x75, 0x48, 0x89, 0xe7, 0x53, 0x68, 0xcf,
+	0x3a, 0xfd, 0x1e, 0x1c, 0x7c, 0xeb, 0xf4, 0xdb, 0xf0, 0x6c, 0xf1, 0xc7, 0x02, 0x1f, 0xb9, 0xda,
+	0x3b, 0x46, 0xa4, 0x5c, 0xa4, 0xc6, 0xc9, 0xd4, 0x8e, 0xe5, 0x52, 0x3b, 0x3a, 0x13, 0x5c, 0xfe,
+	0x92, 0x9c, 0x19, 0xa9, 0x52, 0x87, 0x65, 0xb2, 0xdc, 0x49, 0x73, 0x38, 0x7b, 0x96, 0xb2, 0x8d,
+	0x58, 0x0c, 0xeb, 0xdf, 0xbe, 0x2b, 0xef, 0xe6, 0xe7, 0x72, 0x23, 0xcd, 0xf6, 0x70, 0xef, 0x70,
+	0xb5, 0x77, 0x6b, 0x97, 0xbd, 0xd0, 0x5b, 0xf7, 0x91, 0x93, 0xab, 0xd5, 0x21, 0xe7, 0xc2, 0xdd,
+	0x28, 0x97, 0x65, 0xd2, 0x2d, 0xe6, 0x6e, 0xf3, 0x06, 0x95, 0xe7, 0x7d, 0xf7, 0x74, 0x84, 0x1f,
+	0xfe, 0x07, 0x00, 0x00, 0xff, 0xff, 0xc4, 0xa8, 0xe6, 0x44, 0xb8, 0x02, 0x00, 0x00,
 }
diff --git a/source/java/polaris-specification/src/main/proto/code.proto b/source/java/polaris-specification/src/main/proto/code.proto
index 9bc3d23..baad235 100644
--- a/source/java/polaris-specification/src/main/proto/code.proto
+++ b/source/java/polaris-specification/src/main/proto/code.proto
@@ -74,6 +74,7 @@ enum Code {
     InvalidFaultDetectName           = 400901;
     InvalidFaultDetectNamespace      = 400902;
     FaultDetectRuleExisted           = 400903;
+    InvalidMatchRule                 = 400904;
 
     // network relative codes
     ServicesExistedMesh   = 400170;
@@ -190,4 +191,4 @@ enum Code {
 
     AuthTokenForbidden        = 403001;
     OperationRoleForbidden    = 403002;
-}
\ No newline at end of file
+}
diff --git a/source/java/polaris-specification/src/main/proto/config_file.proto b/source/java/polaris-specification/src/main/proto/config_file.proto
index f7b08b4..80e2b8a 100644
--- a/source/java/polaris-specification/src/main/proto/config_file.proto
+++ b/source/java/polaris-specification/src/main/proto/config_file.proto
@@ -3,11 +3,11 @@ syntax = "proto3";
 package v1;
 
 import "google/protobuf/wrappers.proto";
+import "model.proto";
 option go_package = "github.com/polarismesh/specification/source/go/api/v1/config_manage";
 option java_package = "com.tencent.polaris.specification.api.v1.config.manage";
 option java_outer_classname = "ConfigFileProto";
 
-
 message ConfigFileGroup {
   google.protobuf.UInt64Value id = 1;
   google.protobuf.StringValue name = 2;
@@ -82,6 +82,9 @@ message ConfigFileRelease {
   google.protobuf.BoolValue active = 15;
   google.protobuf.StringValue format = 16;
   google.protobuf.StringValue release_description = 17;
+  google.protobuf.StringValue release_type = 18;
+  // 配置灰度发布时需要匹配的客户端标签信息
+  repeated ClientLabel beta_labels = 19;
 }
 
 message ConfigFileReleaseHistory {
@@ -156,13 +159,55 @@ message ConfigFilePublishInfo {
   google.protobuf.StringValue content = 5;
   google.protobuf.StringValue comment = 6;
   google.protobuf.StringValue format = 7;
-  google.protobuf.StringValue release_description = 8 [ json_name = "release_description" ];
+  google.protobuf.StringValue release_description = 8
+      [ json_name = "release_description" ];
   google.protobuf.StringValue create_by = 11 [ json_name = "create_by" ];
   google.protobuf.StringValue modify_by = 13 [ json_name = "modify_by" ];
   repeated ConfigFileTag tags = 14;
+  google.protobuf.StringValue md5 = 15;
+  // 是否为加密配置文件
+  google.protobuf.BoolValue encrypted = 16;
+  // 加密算法
+  google.protobuf.StringValue encrypt_algo = 17;
 }
 
 message ConfigFileGroupRequest {
   google.protobuf.StringValue revision = 1;
-  ConfigFileGroup config_file_group = 2;
-}
\ No newline at end of file
+  ConfigFileGroup config_file_group = 2 [ json_name = "config_file_group" ];
+  // 配置标签
+  map<string, string> client_labels = 12 [ json_name = "client_labels" ];
+}
+
+message ConfigDiscoverRequest {
+  enum ConfigDiscoverRequestType {
+    UNKNOWN = 0;
+    CONFIG_FILE = 1;
+    CONFIG_FILE_Names = 2;
+    CONFIG_FILE_GROUPS = 3;
+  }
+  ConfigDiscoverRequestType type = 1;
+  ClientConfigFileInfo config_file = 2 [ json_name = "config_file" ];
+  string revision = 3;
+}
+
+message ConfigDiscoverResponse {
+  enum ConfigDiscoverResponseType {
+    UNKNOWN = 0;
+    CONFIG_FILE = 1;
+    CONFIG_FILE_Names = 2;
+    CONFIG_FILE_GROUPS = 3;
+  }
+
+  uint32 code = 1;
+  string info = 2;
+  string revision = 3;
+
+  ConfigDiscoverResponseType type = 4;
+
+  ClientConfigFileInfo config_file = 5 [ json_name = "config_file" ];
+
+  repeated ClientConfigFileInfo config_file_names = 6
+      [ json_name = "config_file_names" ];
+  repeated ConfigFileGroup config_file_groups = 7
+      [ json_name = "config_file_groups" ];
+}
diff --git a/source/java/polaris-specification/src/main/proto/contract.proto b/source/java/polaris-specification/src/main/proto/contract.proto
index 7615070..d50e04e 100644
--- a/source/java/polaris-specification/src/main/proto/contract.proto
+++ b/source/java/polaris-specification/src/main/proto/contract.proto
@@ -7,39 +7,53 @@ option java_package = "com.tencent.polaris.specification.api.v1.service.manage";
 option java_outer_classname = "ServiceContractProto";
 
 message ServiceContract {
+  // 契约ID
+  string id = 1;
   // 契约名称
-  string name = 1;
+  string name = 2;
   // 所属命名空间
-  string namespace = 2;
+  string namespace = 3;
   // 所属服务名称
-  string service = 3;
+  string service = 4;
   // 协议，http/grpc/dubbo/thrift
-  string protocol = 4;
+  string protocol = 5;
   // 契约版本
-  string version = 5;
+  string version = 6;
   // 信息摘要
-  string revision = 6;
+  string revision = 7;
   // 额外描述
-  string content = 7;
+  string content = 8;
   // 接口描述信息
-  repeated InterfaceDescriptor interfaces = 8;
+  repeated InterfaceDescriptor interfaces = 9;
   // 创建时间
-  string ctime = 9;
+  string ctime = 10;
   // 更新时间
-  string mtime = 10;
+  string mtime = 11;
+  // 接口状态，Offline/Online
+  string status = 12;
 }
 
 message InterfaceDescriptor {
+  enum Source {
+    UNKNOWN = 0;
+    Manual = 1;
+    Client = 2;
+  }
+
+  // 接口ID
+  string id = 1;
   // 方法名称，对应 http method/ dubbo interface func/grpc service func
-  string method = 1;
+  string method = 2;
   // 接口名称，http path/dubbo interface/grpc service
-  string path = 2;
+  string path = 3;
   // 接口描述信息
-  string content = 3;
+  string content = 4;
+  // 创建来源
+  Source source = 5;
   // 接口信息摘要
-  string revision = 4;
+  string revision = 6;
   // 创建时间
-  string ctime = 9;
+  string ctime = 7;
   // 更新时间
-  string mtime = 10;
+  string mtime = 8;
 }
diff --git a/source/java/polaris-specification/src/main/proto/grpc_config_api.proto b/source/java/polaris-specification/src/main/proto/grpc_config_api.proto
index 887ce45..e91d024 100644
--- a/source/java/polaris-specification/src/main/proto/grpc_config_api.proto
+++ b/source/java/polaris-specification/src/main/proto/grpc_config_api.proto
@@ -29,4 +29,6 @@ service PolarisConfigGRPC {
   // 拉取指定配置分组下的配置文件列表
   rpc GetConfigFileMetadataList(ConfigFileGroupRequest) returns (ConfigClientListResponse) {}
 
+  // 统一发现接口
+  rpc Discover(stream ConfigDiscoverRequest) returns (stream ConfigDiscoverResponse) {}
 }
diff --git a/source/java/polaris-specification/src/main/proto/grpcapi.proto b/source/java/polaris-specification/src/main/proto/grpcapi.proto
index 0e7538e..db8bbb6 100644
--- a/source/java/polaris-specification/src/main/proto/grpcapi.proto
+++ b/source/java/polaris-specification/src/main/proto/grpcapi.proto
@@ -24,15 +24,19 @@ service PolarisGRPC {
   rpc Discover(stream DiscoverRequest) returns (stream DiscoverResponse) {}
   // 被调方上报心跳
   rpc Heartbeat(Instance) returns (Response) {}
-  // 上报服务契约
-  rpc ReportServiceContract(ServiceContract) returns (Response) {}
 }
 
 service PolarisHeartbeatGRPC {
   // 被调方批量上报心跳
-  rpc BatchHeartbeat(stream HeartbeatsRequest) returns (stream HeartbeatsResponse) {}
+  rpc BatchHeartbeat(stream HeartbeatsRequest)
+      returns (stream HeartbeatsResponse) {}
   // 批量获取心跳记录
   rpc BatchGetHeartbeat(GetHeartbeatsRequest) returns (GetHeartbeatsResponse) {}
   // 批量删除心跳记录
   rpc BatchDelHeartbeat(DelHeartbeatsRequest) returns (DelHeartbeatsResponse) {}
 }
+
+service PolarisServiceContractGRPC {
+  // 上报服务契约
+  rpc ReportServiceContract(ServiceContract) returns (Response) {}
+}
diff --git a/source/java/polaris-specification/src/main/proto/model.proto b/source/java/polaris-specification/src/main/proto/model.proto
index fa72e87..6677db2 100644
--- a/source/java/polaris-specification/src/main/proto/model.proto
+++ b/source/java/polaris-specification/src/main/proto/model.proto
@@ -39,20 +39,23 @@ message MatchString {
 
   MatchStringType type = 1;
   google.protobuf.StringValue value = 2;
-  ValueType value_type = 3  [json_name = "value_type"];
+  ValueType value_type = 3 [ json_name = "value_type" ];
 }
 
-
-message StringList {
-  repeated string values = 1;
-}
+message StringList { repeated string values = 1; }
 
 // 汇总查询数据
 message Summary {
   // 服务总数
-  uint32 total_service_count = 1 [json_name = "total_service_count"];
+  uint32 total_service_count = 1 [ json_name = "total_service_count" ];
   // 健康实例总数
-  uint32 total_health_instance_count = 2 [json_name = "total_health_instance_count"];
+  uint32 total_health_instance_count = 2
+      [ json_name = "total_health_instance_count" ];
   // 实例总数
-  uint32 total_instance_count = 3 [json_name = "total_instance_count"];
+  uint32 total_instance_count = 3 [ json_name = "total_instance_count" ];
+}
+
+message ClientLabel {
+  string key = 1;
+  MatchString value = 2;
 }
diff --git a/source/java/polaris-specification/src/main/proto/namespace.proto b/source/java/polaris-specification/src/main/proto/namespace.proto
index c3998d4..a23850d 100644
--- a/source/java/polaris-specification/src/main/proto/namespace.proto
+++ b/source/java/polaris-specification/src/main/proto/namespace.proto
@@ -30,4 +30,6 @@ message Namespace {
   google.protobuf.StringValue id = 12;
 
   google.protobuf.BoolValue editable = 15;
+
+  repeated google.protobuf.StringValue service_export_to = 16 [ json_name = "service_export_to" ];
 }
\ No newline at end of file
diff --git a/source/java/polaris-specification/src/main/proto/request.proto b/source/java/polaris-specification/src/main/proto/request.proto
index b82ba55..1587cc2 100644
--- a/source/java/polaris-specification/src/main/proto/request.proto
+++ b/source/java/polaris-specification/src/main/proto/request.proto
@@ -3,11 +3,16 @@ syntax = "proto3";
 package v1;
 
 import "service.proto";
+import "contract.proto";
 
 option go_package = "github.com/polarismesh/specification/source/go/api/v1/service_manage";
 option java_package = "com.tencent.polaris.specification.api.v1.service.manage";
 option java_outer_classname = "RequestProto";
 
+message DiscoverFilter {
+  bool OnlyHealthyInstance = 1;
+}
+
 message DiscoverRequest {
   enum DiscoverRequestType {
     UNKNOWN = 0;
@@ -20,10 +25,13 @@ message DiscoverRequest {
     reserved 7 to 11;
     NAMESPACES = 12;
     FAULT_DETECTOR = 13;
+    SERVICE_CONTRACT = 14;
   }
 
   DiscoverRequestType type = 1;
   Service service = 2;
   reserved 3 to 4;
+  DiscoverFilter Filter = 30;
+  ServiceContract service_contract = 31;
 }
 
diff --git a/source/java/polaris-specification/src/main/proto/response.proto b/source/java/polaris-specification/src/main/proto/response.proto
index 15e34ba..5c94ef4 100644
--- a/source/java/polaris-specification/src/main/proto/response.proto
+++ b/source/java/polaris-specification/src/main/proto/response.proto
@@ -14,6 +14,7 @@ import "client.proto";
 import "configrelease.proto";
 import "fault_detector.proto";
 import "auth.proto";
+import "contract.proto";
 
 option go_package = "github.com/polarismesh/specification/source/go/api/v1/service_manage";
 option java_package = "com.tencent.polaris.specification.api.v1.service.manage";
@@ -91,6 +92,7 @@ message DiscoverResponse {
     reserved "MESH", "MESH_CONFIG", "FLUX_DBREFRESH", "FLUX_SDK", "FLUX_SERVER";
     NAMESPACES = 12;
     FAULT_DETECTOR = 13;
+    SERVICE_CONTRACT = 14;
   }
 
   DiscoverResponseType type = 3;
@@ -104,6 +106,7 @@ message DiscoverResponse {
   FaultDetector faultDetector = 11;
   reserved 12 to 20;
   Service aliasFor = 21;
+  ServiceContract serviceContract = 22;
 }
 
 
diff --git a/source/java/polaris-specification/src/main/proto/service.proto b/source/java/polaris-specification/src/main/proto/service.proto
index c1c8438..9833805 100644
--- a/source/java/polaris-specification/src/main/proto/service.proto
+++ b/source/java/polaris-specification/src/main/proto/service.proto
@@ -33,7 +33,6 @@ message Service {
   google.protobuf.UInt32Value total_instance_count = 17 [json_name = "total_instance_count"];
   google.protobuf.UInt32Value healthy_instance_count = 18 [json_name = "healthy_instance_count"];
 
-
   repeated google.protobuf.StringValue user_ids = 19 [json_name = "user_ids"];
   repeated google.protobuf.StringValue group_ids = 20 [json_name = "group_ids"];
 
@@ -42,6 +41,7 @@ message Service {
 
   google.protobuf.StringValue id = 21;
   google.protobuf.BoolValue editable = 24;
+  repeated google.protobuf.StringValue export_to = 25 [ json_name = "export_to" ];
 }
 
 enum AliasType {