diff --git a/golang/iotexapi/read_state.pb.go b/golang/iotexapi/read_state.pb.go
index f037559..4401d52 100644
--- a/golang/iotexapi/read_state.pb.go
+++ b/golang/iotexapi/read_state.pb.go
@@ -9,7 +9,7 @@
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
+// 	protoc-gen-go v1.26.0
 // 	protoc        v3.21.12
 // source: proto/api/read_state.proto
 
@@ -42,33 +42,55 @@ const (
 	ReadStakingDataMethod_CANDIDATE_BY_ADDRESS ReadStakingDataMethod_Name = 7
 	ReadStakingDataMethod_TOTAL_STAKING_AMOUNT ReadStakingDataMethod_Name = 8
 	ReadStakingDataMethod_BUCKETS_COUNT        ReadStakingDataMethod_Name = 9
+	// 10-19 reserved for native staking
+	ReadStakingDataMethod_COMPOSITE_BUCKETS              ReadStakingDataMethod_Name = 20
+	ReadStakingDataMethod_COMPOSITE_BUCKETS_BY_VOTER     ReadStakingDataMethod_Name = 21
+	ReadStakingDataMethod_COMPOSITE_BUCKETS_BY_CANDIDATE ReadStakingDataMethod_Name = 22
+	ReadStakingDataMethod_COMPOSITE_BUCKETS_BY_INDEXES   ReadStakingDataMethod_Name = 23
+	ReadStakingDataMethod_COMPOSITE_BUCKETS_COUNT        ReadStakingDataMethod_Name = 24
+	ReadStakingDataMethod_COMPOSITE_TOTAL_STAKING_AMOUNT ReadStakingDataMethod_Name = 25
+	ReadStakingDataMethod_CONTRACT_STAKING_BUCKET_TYPES  ReadStakingDataMethod_Name = 26
 )
 
 // Enum value maps for ReadStakingDataMethod_Name.
 var (
 	ReadStakingDataMethod_Name_name = map[int32]string{
-		0: "INVALID",
-		1: "BUCKETS",
-		2: "BUCKETS_BY_VOTER",
-		3: "BUCKETS_BY_CANDIDATE",
-		4: "CANDIDATES",
-		5: "CANDIDATE_BY_NAME",
-		6: "BUCKETS_BY_INDEXES",
-		7: "CANDIDATE_BY_ADDRESS",
-		8: "TOTAL_STAKING_AMOUNT",
-		9: "BUCKETS_COUNT",
+		0:  "INVALID",
+		1:  "BUCKETS",
+		2:  "BUCKETS_BY_VOTER",
+		3:  "BUCKETS_BY_CANDIDATE",
+		4:  "CANDIDATES",
+		5:  "CANDIDATE_BY_NAME",
+		6:  "BUCKETS_BY_INDEXES",
+		7:  "CANDIDATE_BY_ADDRESS",
+		8:  "TOTAL_STAKING_AMOUNT",
+		9:  "BUCKETS_COUNT",
+		20: "COMPOSITE_BUCKETS",
+		21: "COMPOSITE_BUCKETS_BY_VOTER",
+		22: "COMPOSITE_BUCKETS_BY_CANDIDATE",
+		23: "COMPOSITE_BUCKETS_BY_INDEXES",
+		24: "COMPOSITE_BUCKETS_COUNT",
+		25: "COMPOSITE_TOTAL_STAKING_AMOUNT",
+		26: "CONTRACT_STAKING_BUCKET_TYPES",
 	}
 	ReadStakingDataMethod_Name_value = map[string]int32{
-		"INVALID":              0,
-		"BUCKETS":              1,
-		"BUCKETS_BY_VOTER":     2,
-		"BUCKETS_BY_CANDIDATE": 3,
-		"CANDIDATES":           4,
-		"CANDIDATE_BY_NAME":    5,
-		"BUCKETS_BY_INDEXES":   6,
-		"CANDIDATE_BY_ADDRESS": 7,
-		"TOTAL_STAKING_AMOUNT": 8,
-		"BUCKETS_COUNT":        9,
+		"INVALID":                        0,
+		"BUCKETS":                        1,
+		"BUCKETS_BY_VOTER":               2,
+		"BUCKETS_BY_CANDIDATE":           3,
+		"CANDIDATES":                     4,
+		"CANDIDATE_BY_NAME":              5,
+		"BUCKETS_BY_INDEXES":             6,
+		"CANDIDATE_BY_ADDRESS":           7,
+		"TOTAL_STAKING_AMOUNT":           8,
+		"BUCKETS_COUNT":                  9,
+		"COMPOSITE_BUCKETS":              20,
+		"COMPOSITE_BUCKETS_BY_VOTER":     21,
+		"COMPOSITE_BUCKETS_BY_CANDIDATE": 22,
+		"COMPOSITE_BUCKETS_BY_INDEXES":   23,
+		"COMPOSITE_BUCKETS_COUNT":        24,
+		"COMPOSITE_TOTAL_STAKING_AMOUNT": 25,
+		"CONTRACT_STAKING_BUCKET_TYPES":  26,
 	}
 )
 
@@ -217,6 +239,7 @@ type ReadStakingDataRequest struct {
 	//	*ReadStakingDataRequest_CandidateByAddress_
 	//	*ReadStakingDataRequest_TotalStakingAmount_
 	//	*ReadStakingDataRequest_BucketsCount_
+	//	*ReadStakingDataRequest_ContractStakingBucketTypes_
 	Request isReadStakingDataRequest_Request `protobuf_oneof:"request"`
 }
 
@@ -322,6 +345,13 @@ func (x *ReadStakingDataRequest) GetBucketsCount() *ReadStakingDataRequest_Bucke
 	return nil
 }
 
+func (x *ReadStakingDataRequest) GetContractStakingBucketTypes() *ReadStakingDataRequest_ContractStakingBucketTypes {
+	if x, ok := x.GetRequest().(*ReadStakingDataRequest_ContractStakingBucketTypes_); ok {
+		return x.ContractStakingBucketTypes
+	}
+	return nil
+}
+
 type isReadStakingDataRequest_Request interface {
 	isReadStakingDataRequest_Request()
 }
@@ -362,6 +392,10 @@ type ReadStakingDataRequest_BucketsCount_ struct {
 	BucketsCount *ReadStakingDataRequest_BucketsCount `protobuf:"bytes,9,opt,name=bucketsCount,proto3,oneof"`
 }
 
+type ReadStakingDataRequest_ContractStakingBucketTypes_ struct {
+	ContractStakingBucketTypes *ReadStakingDataRequest_ContractStakingBucketTypes `protobuf:"bytes,10,opt,name=contractStakingBucketTypes,proto3,oneof"`
+}
+
 func (*ReadStakingDataRequest_Buckets) isReadStakingDataRequest_Request() {}
 
 func (*ReadStakingDataRequest_BucketsByVoter) isReadStakingDataRequest_Request() {}
@@ -380,6 +414,8 @@ func (*ReadStakingDataRequest_TotalStakingAmount_) isReadStakingDataRequest_Requ
 
 func (*ReadStakingDataRequest_BucketsCount_) isReadStakingDataRequest_Request() {}
 
+func (*ReadStakingDataRequest_ContractStakingBucketTypes_) isReadStakingDataRequest_Request() {}
+
 type ReadStakingDataRequest_VoteBuckets struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -801,6 +837,53 @@ func (*ReadStakingDataRequest_BucketsCount) Descriptor() ([]byte, []int) {
 	return file_proto_api_read_state_proto_rawDescGZIP(), []int{2, 8}
 }
 
+type ReadStakingDataRequest_ContractStakingBucketTypes struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ContractAddress string `protobuf:"bytes,1,opt,name=contractAddress,proto3" json:"contractAddress,omitempty"`
+}
+
+func (x *ReadStakingDataRequest_ContractStakingBucketTypes) Reset() {
+	*x = ReadStakingDataRequest_ContractStakingBucketTypes{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_api_read_state_proto_msgTypes[12]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ReadStakingDataRequest_ContractStakingBucketTypes) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ReadStakingDataRequest_ContractStakingBucketTypes) ProtoMessage() {}
+
+func (x *ReadStakingDataRequest_ContractStakingBucketTypes) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_api_read_state_proto_msgTypes[12]
+	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 ReadStakingDataRequest_ContractStakingBucketTypes.ProtoReflect.Descriptor instead.
+func (*ReadStakingDataRequest_ContractStakingBucketTypes) Descriptor() ([]byte, []int) {
+	return file_proto_api_read_state_proto_rawDescGZIP(), []int{2, 9}
+}
+
+func (x *ReadStakingDataRequest_ContractStakingBucketTypes) GetContractAddress() string {
+	if x != nil {
+		return x.ContractAddress
+	}
+	return ""
+}
+
 var File_proto_api_read_state_proto protoreflect.FileDescriptor
 
 var file_proto_api_read_state_proto_rawDesc = []byte{
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@@ -918,14 +1023,19 @@ var file_proto_api_read_state_proto_rawDesc = []byte{
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 }
 
 var (
@@ -941,21 +1051,22 @@ func file_proto_api_read_state_proto_rawDescGZIP() []byte {
 }
 
 var file_proto_api_read_state_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_proto_api_read_state_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_proto_api_read_state_proto_msgTypes = make([]protoimpl.MessageInfo, 13)
 var file_proto_api_read_state_proto_goTypes = []interface{}{
-	(ReadStakingDataMethod_Name)(0),                       // 0: iotexapi.ReadStakingDataMethod.Name
-	(*PaginationParam)(nil),                               // 1: iotexapi.PaginationParam
-	(*ReadStakingDataMethod)(nil),                         // 2: iotexapi.ReadStakingDataMethod
-	(*ReadStakingDataRequest)(nil),                        // 3: iotexapi.ReadStakingDataRequest
-	(*ReadStakingDataRequest_VoteBuckets)(nil),            // 4: iotexapi.ReadStakingDataRequest.VoteBuckets
-	(*ReadStakingDataRequest_VoteBucketsByVoter)(nil),     // 5: iotexapi.ReadStakingDataRequest.VoteBucketsByVoter
-	(*ReadStakingDataRequest_VoteBucketsByCandidate)(nil), // 6: iotexapi.ReadStakingDataRequest.VoteBucketsByCandidate
-	(*ReadStakingDataRequest_Candidates)(nil),             // 7: iotexapi.ReadStakingDataRequest.Candidates
-	(*ReadStakingDataRequest_CandidateByName)(nil),        // 8: iotexapi.ReadStakingDataRequest.CandidateByName
-	(*ReadStakingDataRequest_VoteBucketsByIndexes)(nil),   // 9: iotexapi.ReadStakingDataRequest.VoteBucketsByIndexes
-	(*ReadStakingDataRequest_CandidateByAddress)(nil),     // 10: iotexapi.ReadStakingDataRequest.CandidateByAddress
-	(*ReadStakingDataRequest_TotalStakingAmount)(nil),     // 11: iotexapi.ReadStakingDataRequest.TotalStakingAmount
-	(*ReadStakingDataRequest_BucketsCount)(nil),           // 12: iotexapi.ReadStakingDataRequest.BucketsCount
+	(ReadStakingDataMethod_Name)(0),                           // 0: iotexapi.ReadStakingDataMethod.Name
+	(*PaginationParam)(nil),                                   // 1: iotexapi.PaginationParam
+	(*ReadStakingDataMethod)(nil),                             // 2: iotexapi.ReadStakingDataMethod
+	(*ReadStakingDataRequest)(nil),                            // 3: iotexapi.ReadStakingDataRequest
+	(*ReadStakingDataRequest_VoteBuckets)(nil),                // 4: iotexapi.ReadStakingDataRequest.VoteBuckets
+	(*ReadStakingDataRequest_VoteBucketsByVoter)(nil),         // 5: iotexapi.ReadStakingDataRequest.VoteBucketsByVoter
+	(*ReadStakingDataRequest_VoteBucketsByCandidate)(nil),     // 6: iotexapi.ReadStakingDataRequest.VoteBucketsByCandidate
+	(*ReadStakingDataRequest_Candidates)(nil),                 // 7: iotexapi.ReadStakingDataRequest.Candidates
+	(*ReadStakingDataRequest_CandidateByName)(nil),            // 8: iotexapi.ReadStakingDataRequest.CandidateByName
+	(*ReadStakingDataRequest_VoteBucketsByIndexes)(nil),       // 9: iotexapi.ReadStakingDataRequest.VoteBucketsByIndexes
+	(*ReadStakingDataRequest_CandidateByAddress)(nil),         // 10: iotexapi.ReadStakingDataRequest.CandidateByAddress
+	(*ReadStakingDataRequest_TotalStakingAmount)(nil),         // 11: iotexapi.ReadStakingDataRequest.TotalStakingAmount
+	(*ReadStakingDataRequest_BucketsCount)(nil),               // 12: iotexapi.ReadStakingDataRequest.BucketsCount
+	(*ReadStakingDataRequest_ContractStakingBucketTypes)(nil), // 13: iotexapi.ReadStakingDataRequest.ContractStakingBucketTypes
 }
 var file_proto_api_read_state_proto_depIdxs = []int32{
 	0,  // 0: iotexapi.ReadStakingDataMethod.method:type_name -> iotexapi.ReadStakingDataMethod.Name
@@ -968,15 +1079,16 @@ var file_proto_api_read_state_proto_depIdxs = []int32{
 	10, // 7: iotexapi.ReadStakingDataRequest.candidateByAddress:type_name -> iotexapi.ReadStakingDataRequest.CandidateByAddress
 	11, // 8: iotexapi.ReadStakingDataRequest.totalStakingAmount:type_name -> iotexapi.ReadStakingDataRequest.TotalStakingAmount
 	12, // 9: iotexapi.ReadStakingDataRequest.bucketsCount:type_name -> iotexapi.ReadStakingDataRequest.BucketsCount
-	1,  // 10: iotexapi.ReadStakingDataRequest.VoteBuckets.pagination:type_name -> iotexapi.PaginationParam
-	1,  // 11: iotexapi.ReadStakingDataRequest.VoteBucketsByVoter.pagination:type_name -> iotexapi.PaginationParam
-	1,  // 12: iotexapi.ReadStakingDataRequest.VoteBucketsByCandidate.pagination:type_name -> iotexapi.PaginationParam
-	1,  // 13: iotexapi.ReadStakingDataRequest.Candidates.pagination:type_name -> iotexapi.PaginationParam
-	14, // [14:14] is the sub-list for method output_type
-	14, // [14:14] is the sub-list for method input_type
-	14, // [14:14] is the sub-list for extension type_name
-	14, // [14:14] is the sub-list for extension extendee
-	0,  // [0:14] is the sub-list for field type_name
+	13, // 10: iotexapi.ReadStakingDataRequest.contractStakingBucketTypes:type_name -> iotexapi.ReadStakingDataRequest.ContractStakingBucketTypes
+	1,  // 11: iotexapi.ReadStakingDataRequest.VoteBuckets.pagination:type_name -> iotexapi.PaginationParam
+	1,  // 12: iotexapi.ReadStakingDataRequest.VoteBucketsByVoter.pagination:type_name -> iotexapi.PaginationParam
+	1,  // 13: iotexapi.ReadStakingDataRequest.VoteBucketsByCandidate.pagination:type_name -> iotexapi.PaginationParam
+	1,  // 14: iotexapi.ReadStakingDataRequest.Candidates.pagination:type_name -> iotexapi.PaginationParam
+	15, // [15:15] is the sub-list for method output_type
+	15, // [15:15] is the sub-list for method input_type
+	15, // [15:15] is the sub-list for extension type_name
+	15, // [15:15] is the sub-list for extension extendee
+	0,  // [0:15] is the sub-list for field type_name
 }
 
 func init() { file_proto_api_read_state_proto_init() }
@@ -1129,6 +1241,18 @@ func file_proto_api_read_state_proto_init() {
 				return nil
 			}
 		}
+		file_proto_api_read_state_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ReadStakingDataRequest_ContractStakingBucketTypes); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	file_proto_api_read_state_proto_msgTypes[2].OneofWrappers = []interface{}{
 		(*ReadStakingDataRequest_Buckets)(nil),
@@ -1140,6 +1264,7 @@ func file_proto_api_read_state_proto_init() {
 		(*ReadStakingDataRequest_CandidateByAddress_)(nil),
 		(*ReadStakingDataRequest_TotalStakingAmount_)(nil),
 		(*ReadStakingDataRequest_BucketsCount_)(nil),
+		(*ReadStakingDataRequest_ContractStakingBucketTypes_)(nil),
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -1147,7 +1272,7 @@ func file_proto_api_read_state_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_api_read_state_proto_rawDesc,
 			NumEnums:      1,
-			NumMessages:   12,
+			NumMessages:   13,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/golang/iotextypes/state_data.pb.go b/golang/iotextypes/state_data.pb.go
index d5d5b5d..a6e1fa1 100644
--- a/golang/iotextypes/state_data.pb.go
+++ b/golang/iotextypes/state_data.pb.go
@@ -9,7 +9,7 @@
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
+// 	protoc-gen-go v1.26.0
 // 	protoc        v3.21.12
 // source: proto/types/state_data.proto
 
@@ -91,15 +91,20 @@ type VoteBucket struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Index            uint64                 `protobuf:"varint,1,opt,name=index,proto3" json:"index,omitempty"`
-	CandidateAddress string                 `protobuf:"bytes,2,opt,name=candidateAddress,proto3" json:"candidateAddress,omitempty"`
-	StakedAmount     string                 `protobuf:"bytes,3,opt,name=stakedAmount,proto3" json:"stakedAmount,omitempty"`
-	StakedDuration   uint32                 `protobuf:"varint,4,opt,name=stakedDuration,proto3" json:"stakedDuration,omitempty"`
-	CreateTime       *timestamppb.Timestamp `protobuf:"bytes,5,opt,name=createTime,proto3" json:"createTime,omitempty"`
-	StakeStartTime   *timestamppb.Timestamp `protobuf:"bytes,6,opt,name=stakeStartTime,proto3" json:"stakeStartTime,omitempty"`
-	UnstakeStartTime *timestamppb.Timestamp `protobuf:"bytes,7,opt,name=unstakeStartTime,proto3" json:"unstakeStartTime,omitempty"`
-	AutoStake        bool                   `protobuf:"varint,8,opt,name=autoStake,proto3" json:"autoStake,omitempty"`
-	Owner            string                 `protobuf:"bytes,9,opt,name=owner,proto3" json:"owner,omitempty"`
+	Index                     uint64                 `protobuf:"varint,1,opt,name=index,proto3" json:"index,omitempty"`
+	CandidateAddress          string                 `protobuf:"bytes,2,opt,name=candidateAddress,proto3" json:"candidateAddress,omitempty"`
+	StakedAmount              string                 `protobuf:"bytes,3,opt,name=stakedAmount,proto3" json:"stakedAmount,omitempty"`
+	StakedDuration            uint32                 `protobuf:"varint,4,opt,name=stakedDuration,proto3" json:"stakedDuration,omitempty"`
+	CreateTime                *timestamppb.Timestamp `protobuf:"bytes,5,opt,name=createTime,proto3" json:"createTime,omitempty"`
+	StakeStartTime            *timestamppb.Timestamp `protobuf:"bytes,6,opt,name=stakeStartTime,proto3" json:"stakeStartTime,omitempty"`
+	UnstakeStartTime          *timestamppb.Timestamp `protobuf:"bytes,7,opt,name=unstakeStartTime,proto3" json:"unstakeStartTime,omitempty"`
+	AutoStake                 bool                   `protobuf:"varint,8,opt,name=autoStake,proto3" json:"autoStake,omitempty"`
+	Owner                     string                 `protobuf:"bytes,9,opt,name=owner,proto3" json:"owner,omitempty"`
+	ContractAddress           string                 `protobuf:"bytes,10,opt,name=contractAddress,proto3" json:"contractAddress,omitempty"`
+	StakedDurationBlockNumber uint64                 `protobuf:"varint,11,opt,name=stakedDurationBlockNumber,proto3" json:"stakedDurationBlockNumber,omitempty"`
+	CreateBlockHeight         uint64                 `protobuf:"varint,12,opt,name=createBlockHeight,proto3" json:"createBlockHeight,omitempty"`
+	StakeStartBlockHeight     uint64                 `protobuf:"varint,13,opt,name=stakeStartBlockHeight,proto3" json:"stakeStartBlockHeight,omitempty"`
+	UnstakeStartBlockHeight   uint64                 `protobuf:"varint,14,opt,name=unstakeStartBlockHeight,proto3" json:"unstakeStartBlockHeight,omitempty"`
 }
 
 func (x *VoteBucket) Reset() {
@@ -197,6 +202,41 @@ func (x *VoteBucket) GetOwner() string {
 	return ""
 }
 
+func (x *VoteBucket) GetContractAddress() string {
+	if x != nil {
+		return x.ContractAddress
+	}
+	return ""
+}
+
+func (x *VoteBucket) GetStakedDurationBlockNumber() uint64 {
+	if x != nil {
+		return x.StakedDurationBlockNumber
+	}
+	return 0
+}
+
+func (x *VoteBucket) GetCreateBlockHeight() uint64 {
+	if x != nil {
+		return x.CreateBlockHeight
+	}
+	return 0
+}
+
+func (x *VoteBucket) GetStakeStartBlockHeight() uint64 {
+	if x != nil {
+		return x.StakeStartBlockHeight
+	}
+	return 0
+}
+
+func (x *VoteBucket) GetUnstakeStartBlockHeight() uint64 {
+	if x != nil {
+		return x.UnstakeStartBlockHeight
+	}
+	return 0
+}
+
 type VoteBucketList struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -441,6 +481,108 @@ func (x *BucketsCount) GetActive() uint64 {
 	return 0
 }
 
+type ContractStakingBucketType struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	StakedAmount   string `protobuf:"bytes,1,opt,name=stakedAmount,proto3" json:"stakedAmount,omitempty"`
+	StakedDuration uint32 `protobuf:"varint,2,opt,name=stakedDuration,proto3" json:"stakedDuration,omitempty"`
+}
+
+func (x *ContractStakingBucketType) Reset() {
+	*x = ContractStakingBucketType{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_types_state_data_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ContractStakingBucketType) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ContractStakingBucketType) ProtoMessage() {}
+
+func (x *ContractStakingBucketType) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_types_state_data_proto_msgTypes[6]
+	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 ContractStakingBucketType.ProtoReflect.Descriptor instead.
+func (*ContractStakingBucketType) Descriptor() ([]byte, []int) {
+	return file_proto_types_state_data_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *ContractStakingBucketType) GetStakedAmount() string {
+	if x != nil {
+		return x.StakedAmount
+	}
+	return ""
+}
+
+func (x *ContractStakingBucketType) GetStakedDuration() uint32 {
+	if x != nil {
+		return x.StakedDuration
+	}
+	return 0
+}
+
+type ContractStakingBucketTypeList struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	BucketTypes []*ContractStakingBucketType `protobuf:"bytes,1,rep,name=bucketTypes,proto3" json:"bucketTypes,omitempty"`
+}
+
+func (x *ContractStakingBucketTypeList) Reset() {
+	*x = ContractStakingBucketTypeList{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_types_state_data_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ContractStakingBucketTypeList) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ContractStakingBucketTypeList) ProtoMessage() {}
+
+func (x *ContractStakingBucketTypeList) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_types_state_data_proto_msgTypes[7]
+	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 ContractStakingBucketTypeList.ProtoReflect.Descriptor instead.
+func (*ContractStakingBucketTypeList) Descriptor() ([]byte, []int) {
+	return file_proto_types_state_data_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *ContractStakingBucketTypeList) GetBucketTypes() []*ContractStakingBucketType {
+	if x != nil {
+		return x.BucketTypes
+	}
+	return nil
+}
+
 type ProbationCandidateList_Info struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -453,7 +595,7 @@ type ProbationCandidateList_Info struct {
 func (x *ProbationCandidateList_Info) Reset() {
 	*x = ProbationCandidateList_Info{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_types_state_data_proto_msgTypes[6]
+		mi := &file_proto_types_state_data_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -466,7 +608,7 @@ func (x *ProbationCandidateList_Info) String() string {
 func (*ProbationCandidateList_Info) ProtoMessage() {}
 
 func (x *ProbationCandidateList_Info) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_types_state_data_proto_msgTypes[6]
+	mi := &file_proto_types_state_data_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -516,7 +658,7 @@ var file_proto_types_state_data_proto_rawDesc = []byte{
 	0x6e, 0x66, 0x6f, 0x12, 0x18, 0x0a, 0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01,
 	0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x12, 0x14, 0x0a,
 	0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x05, 0x63, 0x6f,
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+	0x75, 0x6e, 0x74, 0x22, 0x9c, 0x05, 0x0a, 0x0a, 0x56, 0x6f, 0x74, 0x65, 0x42, 0x75, 0x63, 0x6b,
 	0x65, 0x74, 0x12, 0x14, 0x0a, 0x05, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x18, 0x01, 0x20, 0x01, 0x28,
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@@ -541,45 +683,74 @@ var file_proto_types_state_data_proto_rawDesc = []byte{
 	0x74, 0x61, 0x72, 0x74, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x1c, 0x0a, 0x09, 0x61, 0x75, 0x74, 0x6f,
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 }
 
 var (
@@ -594,29 +765,32 @@ func file_proto_types_state_data_proto_rawDescGZIP() []byte {
 	return file_proto_types_state_data_proto_rawDescData
 }
 
-var file_proto_types_state_data_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_proto_types_state_data_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
 var file_proto_types_state_data_proto_goTypes = []interface{}{
-	(*ProbationCandidateList)(nil),      // 0: iotextypes.ProbationCandidateList
-	(*VoteBucket)(nil),                  // 1: iotextypes.VoteBucket
-	(*VoteBucketList)(nil),              // 2: iotextypes.VoteBucketList
-	(*CandidateV2)(nil),                 // 3: iotextypes.CandidateV2
-	(*CandidateListV2)(nil),             // 4: iotextypes.CandidateListV2
-	(*BucketsCount)(nil),                // 5: iotextypes.BucketsCount
-	(*ProbationCandidateList_Info)(nil), // 6: iotextypes.ProbationCandidateList.Info
-	(*timestamppb.Timestamp)(nil),       // 7: google.protobuf.Timestamp
+	(*ProbationCandidateList)(nil),        // 0: iotextypes.ProbationCandidateList
+	(*VoteBucket)(nil),                    // 1: iotextypes.VoteBucket
+	(*VoteBucketList)(nil),                // 2: iotextypes.VoteBucketList
+	(*CandidateV2)(nil),                   // 3: iotextypes.CandidateV2
+	(*CandidateListV2)(nil),               // 4: iotextypes.CandidateListV2
+	(*BucketsCount)(nil),                  // 5: iotextypes.BucketsCount
+	(*ContractStakingBucketType)(nil),     // 6: iotextypes.ContractStakingBucketType
+	(*ContractStakingBucketTypeList)(nil), // 7: iotextypes.ContractStakingBucketTypeList
+	(*ProbationCandidateList_Info)(nil),   // 8: iotextypes.ProbationCandidateList.Info
+	(*timestamppb.Timestamp)(nil),         // 9: google.protobuf.Timestamp
 }
 var file_proto_types_state_data_proto_depIdxs = []int32{
-	6, // 0: iotextypes.ProbationCandidateList.probationList:type_name -> iotextypes.ProbationCandidateList.Info
-	7, // 1: iotextypes.VoteBucket.createTime:type_name -> google.protobuf.Timestamp
-	7, // 2: iotextypes.VoteBucket.stakeStartTime:type_name -> google.protobuf.Timestamp
-	7, // 3: iotextypes.VoteBucket.unstakeStartTime:type_name -> google.protobuf.Timestamp
+	8, // 0: iotextypes.ProbationCandidateList.probationList:type_name -> iotextypes.ProbationCandidateList.Info
+	9, // 1: iotextypes.VoteBucket.createTime:type_name -> google.protobuf.Timestamp
+	9, // 2: iotextypes.VoteBucket.stakeStartTime:type_name -> google.protobuf.Timestamp
+	9, // 3: iotextypes.VoteBucket.unstakeStartTime:type_name -> google.protobuf.Timestamp
 	1, // 4: iotextypes.VoteBucketList.buckets:type_name -> iotextypes.VoteBucket
 	3, // 5: iotextypes.CandidateListV2.candidates:type_name -> iotextypes.CandidateV2
-	6, // [6:6] is the sub-list for method output_type
-	6, // [6:6] is the sub-list for method input_type
-	6, // [6:6] is the sub-list for extension type_name
-	6, // [6:6] is the sub-list for extension extendee
-	0, // [0:6] is the sub-list for field type_name
+	6, // 6: iotextypes.ContractStakingBucketTypeList.bucketTypes:type_name -> iotextypes.ContractStakingBucketType
+	7, // [7:7] is the sub-list for method output_type
+	7, // [7:7] is the sub-list for method input_type
+	7, // [7:7] is the sub-list for extension type_name
+	7, // [7:7] is the sub-list for extension extendee
+	0, // [0:7] is the sub-list for field type_name
 }
 
 func init() { file_proto_types_state_data_proto_init() }
@@ -698,6 +872,30 @@ func file_proto_types_state_data_proto_init() {
 			}
 		}
 		file_proto_types_state_data_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ContractStakingBucketType); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_types_state_data_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ContractStakingBucketTypeList); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_types_state_data_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ProbationCandidateList_Info); i {
 			case 0:
 				return &v.state
@@ -716,7 +914,7 @@ func file_proto_types_state_data_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_types_state_data_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   7,
+			NumMessages:   9,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/proto/api/read_state.proto b/proto/api/read_state.proto
index 498c4f7..3ef9cf6 100644
--- a/proto/api/read_state.proto
+++ b/proto/api/read_state.proto
@@ -29,6 +29,14 @@ message ReadStakingDataMethod {
 		CANDIDATE_BY_ADDRESS = 7;
 		TOTAL_STAKING_AMOUNT = 8;
 		BUCKETS_COUNT = 9;
+		// 10-19 reserved for native staking
+		COMPOSITE_BUCKETS = 20;
+		COMPOSITE_BUCKETS_BY_VOTER = 21;
+		COMPOSITE_BUCKETS_BY_CANDIDATE = 22;
+		COMPOSITE_BUCKETS_BY_INDEXES = 23;
+		COMPOSITE_BUCKETS_COUNT = 24;
+		COMPOSITE_TOTAL_STAKING_AMOUNT = 25;
+		CONTRACT_STAKING_BUCKET_TYPES = 26;
 	}
 	Name method = 1;
 }
@@ -68,6 +76,10 @@ message ReadStakingDataRequest {
 
 	message BucketsCount {}
 
+	message ContractStakingBucketTypes {
+		string contractAddress = 1;
+	}
+
 	oneof request {
 		VoteBuckets buckets = 1;
 		VoteBucketsByVoter bucketsByVoter = 2;
@@ -78,5 +90,6 @@ message ReadStakingDataRequest {
 		CandidateByAddress candidateByAddress = 7;
 		TotalStakingAmount totalStakingAmount = 8;
 		BucketsCount bucketsCount = 9;
+		ContractStakingBucketTypes contractStakingBucketTypes = 10;
 	}
 }
diff --git a/proto/types/state_data.proto b/proto/types/state_data.proto
index 4b52741..f2e4596 100644
--- a/proto/types/state_data.proto
+++ b/proto/types/state_data.proto
@@ -34,6 +34,11 @@ message VoteBucket {
   google.protobuf.Timestamp unstakeStartTime = 7;
   bool autoStake = 8;
   string owner = 9;
+  string contractAddress = 10;
+  uint64 stakedDurationBlockNumber = 11;
+  uint64 createBlockHeight = 12;
+  uint64 stakeStartBlockHeight = 13;
+  uint64 unstakeStartBlockHeight = 14;
 }
 
 message VoteBucketList {
@@ -58,3 +63,12 @@ message BucketsCount {
   uint64 total = 1;
   uint64 active = 2;
 }
+
+message ContractStakingBucketType {
+  string stakedAmount = 1;
+  uint32 stakedDuration = 2;
+}
+
+message ContractStakingBucketTypeList {
+  repeated ContractStakingBucketType bucketTypes = 1;
+}