diff --git a/release/go/spacemesh/v1/mesh.pb.go b/release/go/spacemesh/v1/mesh.pb.go
index 91a8abd6..678ff5bc 100644
--- a/release/go/spacemesh/v1/mesh.pb.go
+++ b/release/go/spacemesh/v1/mesh.pb.go
@@ -30,7 +30,7 @@ var file_spacemesh_v1_mesh_proto_rawDesc = []byte{
 	0x65, 0x73, 0x68, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0c, 0x73, 0x70, 0x61, 0x63, 0x65,
 	0x6d, 0x65, 0x73, 0x68, 0x2e, 0x76, 0x31, 0x1a, 0x1d, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65,
 	0x73, 0x68, 0x2f, 0x76, 0x31, 0x2f, 0x6d, 0x65, 0x73, 0x68, 0x5f, 0x74, 0x79, 0x70, 0x65, 0x73,
-	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x32, 0x9c, 0x08, 0x0a, 0x0b, 0x4d, 0x65, 0x73, 0x68, 0x53,
+	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x32, 0xf2, 0x08, 0x0a, 0x0b, 0x4d, 0x65, 0x73, 0x68, 0x53,
 	0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x52, 0x0a, 0x0b, 0x47, 0x65, 0x6e, 0x65, 0x73, 0x69,
 	0x73, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x20, 0x2e, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73,
 	0x68, 0x2e, 0x76, 0x31, 0x2e, 0x47, 0x65, 0x6e, 0x65, 0x73, 0x69, 0x73, 0x54, 0x69, 0x6d, 0x65,
@@ -96,11 +96,16 @@ var file_spacemesh_v1_mesh_proto_rawDesc = []byte{
 	0x79, 0x65, 0x72, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
 	0x1a, 0x21, 0x2e, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x2e, 0x76, 0x31, 0x2e,
 	0x4c, 0x61, 0x79, 0x65, 0x72, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x52, 0x65, 0x73, 0x70, 0x6f,
-	0x6e, 0x73, 0x65, 0x30, 0x01, 0x42, 0x34, 0x5a, 0x32, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e,
-	0x63, 0x6f, 0x6d, 0x2f, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x6f, 0x73, 0x2f,
-	0x61, 0x70, 0x69, 0x2f, 0x72, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x2f, 0x67, 0x6f, 0x2f, 0x73,
-	0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x33,
+	0x6e, 0x73, 0x65, 0x30, 0x01, 0x12, 0x54, 0x0a, 0x0b, 0x45, 0x70, 0x6f, 0x63, 0x68, 0x53, 0x74,
+	0x72, 0x65, 0x61, 0x6d, 0x12, 0x20, 0x2e, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68,
+	0x2e, 0x76, 0x31, 0x2e, 0x45, 0x70, 0x6f, 0x63, 0x68, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x21, 0x2e, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65,
+	0x73, 0x68, 0x2e, 0x76, 0x31, 0x2e, 0x45, 0x70, 0x6f, 0x63, 0x68, 0x53, 0x74, 0x72, 0x65, 0x61,
+	0x6d, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x30, 0x01, 0x42, 0x34, 0x5a, 0x32, 0x67,
+	0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d,
+	0x65, 0x73, 0x68, 0x6f, 0x73, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x72, 0x65, 0x6c, 0x65, 0x61, 0x73,
+	0x65, 0x2f, 0x67, 0x6f, 0x2f, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x2f, 0x76,
+	0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var file_spacemesh_v1_mesh_proto_goTypes = []interface{}{
@@ -115,17 +120,19 @@ var file_spacemesh_v1_mesh_proto_goTypes = []interface{}{
 	(*LayersQueryRequest)(nil),               // 8: spacemesh.v1.LayersQueryRequest
 	(*AccountMeshDataStreamRequest)(nil),     // 9: spacemesh.v1.AccountMeshDataStreamRequest
 	(*LayerStreamRequest)(nil),               // 10: spacemesh.v1.LayerStreamRequest
-	(*GenesisTimeResponse)(nil),              // 11: spacemesh.v1.GenesisTimeResponse
-	(*CurrentLayerResponse)(nil),             // 12: spacemesh.v1.CurrentLayerResponse
-	(*CurrentEpochResponse)(nil),             // 13: spacemesh.v1.CurrentEpochResponse
-	(*GenesisIDResponse)(nil),                // 14: spacemesh.v1.GenesisIDResponse
-	(*EpochNumLayersResponse)(nil),           // 15: spacemesh.v1.EpochNumLayersResponse
-	(*LayerDurationResponse)(nil),            // 16: spacemesh.v1.LayerDurationResponse
-	(*MaxTransactionsPerSecondResponse)(nil), // 17: spacemesh.v1.MaxTransactionsPerSecondResponse
-	(*AccountMeshDataQueryResponse)(nil),     // 18: spacemesh.v1.AccountMeshDataQueryResponse
-	(*LayersQueryResponse)(nil),              // 19: spacemesh.v1.LayersQueryResponse
-	(*AccountMeshDataStreamResponse)(nil),    // 20: spacemesh.v1.AccountMeshDataStreamResponse
-	(*LayerStreamResponse)(nil),              // 21: spacemesh.v1.LayerStreamResponse
+	(*EpochStreamRequest)(nil),               // 11: spacemesh.v1.EpochStreamRequest
+	(*GenesisTimeResponse)(nil),              // 12: spacemesh.v1.GenesisTimeResponse
+	(*CurrentLayerResponse)(nil),             // 13: spacemesh.v1.CurrentLayerResponse
+	(*CurrentEpochResponse)(nil),             // 14: spacemesh.v1.CurrentEpochResponse
+	(*GenesisIDResponse)(nil),                // 15: spacemesh.v1.GenesisIDResponse
+	(*EpochNumLayersResponse)(nil),           // 16: spacemesh.v1.EpochNumLayersResponse
+	(*LayerDurationResponse)(nil),            // 17: spacemesh.v1.LayerDurationResponse
+	(*MaxTransactionsPerSecondResponse)(nil), // 18: spacemesh.v1.MaxTransactionsPerSecondResponse
+	(*AccountMeshDataQueryResponse)(nil),     // 19: spacemesh.v1.AccountMeshDataQueryResponse
+	(*LayersQueryResponse)(nil),              // 20: spacemesh.v1.LayersQueryResponse
+	(*AccountMeshDataStreamResponse)(nil),    // 21: spacemesh.v1.AccountMeshDataStreamResponse
+	(*LayerStreamResponse)(nil),              // 22: spacemesh.v1.LayerStreamResponse
+	(*EpochStreamResponse)(nil),              // 23: spacemesh.v1.EpochStreamResponse
 }
 var file_spacemesh_v1_mesh_proto_depIdxs = []int32{
 	0,  // 0: spacemesh.v1.MeshService.GenesisTime:input_type -> spacemesh.v1.GenesisTimeRequest
@@ -139,19 +146,21 @@ var file_spacemesh_v1_mesh_proto_depIdxs = []int32{
 	8,  // 8: spacemesh.v1.MeshService.LayersQuery:input_type -> spacemesh.v1.LayersQueryRequest
 	9,  // 9: spacemesh.v1.MeshService.AccountMeshDataStream:input_type -> spacemesh.v1.AccountMeshDataStreamRequest
 	10, // 10: spacemesh.v1.MeshService.LayerStream:input_type -> spacemesh.v1.LayerStreamRequest
-	11, // 11: spacemesh.v1.MeshService.GenesisTime:output_type -> spacemesh.v1.GenesisTimeResponse
-	12, // 12: spacemesh.v1.MeshService.CurrentLayer:output_type -> spacemesh.v1.CurrentLayerResponse
-	13, // 13: spacemesh.v1.MeshService.CurrentEpoch:output_type -> spacemesh.v1.CurrentEpochResponse
-	14, // 14: spacemesh.v1.MeshService.GenesisID:output_type -> spacemesh.v1.GenesisIDResponse
-	15, // 15: spacemesh.v1.MeshService.EpochNumLayers:output_type -> spacemesh.v1.EpochNumLayersResponse
-	16, // 16: spacemesh.v1.MeshService.LayerDuration:output_type -> spacemesh.v1.LayerDurationResponse
-	17, // 17: spacemesh.v1.MeshService.MaxTransactionsPerSecond:output_type -> spacemesh.v1.MaxTransactionsPerSecondResponse
-	18, // 18: spacemesh.v1.MeshService.AccountMeshDataQuery:output_type -> spacemesh.v1.AccountMeshDataQueryResponse
-	19, // 19: spacemesh.v1.MeshService.LayersQuery:output_type -> spacemesh.v1.LayersQueryResponse
-	20, // 20: spacemesh.v1.MeshService.AccountMeshDataStream:output_type -> spacemesh.v1.AccountMeshDataStreamResponse
-	21, // 21: spacemesh.v1.MeshService.LayerStream:output_type -> spacemesh.v1.LayerStreamResponse
-	11, // [11:22] is the sub-list for method output_type
-	0,  // [0:11] is the sub-list for method input_type
+	11, // 11: spacemesh.v1.MeshService.EpochStream:input_type -> spacemesh.v1.EpochStreamRequest
+	12, // 12: spacemesh.v1.MeshService.GenesisTime:output_type -> spacemesh.v1.GenesisTimeResponse
+	13, // 13: spacemesh.v1.MeshService.CurrentLayer:output_type -> spacemesh.v1.CurrentLayerResponse
+	14, // 14: spacemesh.v1.MeshService.CurrentEpoch:output_type -> spacemesh.v1.CurrentEpochResponse
+	15, // 15: spacemesh.v1.MeshService.GenesisID:output_type -> spacemesh.v1.GenesisIDResponse
+	16, // 16: spacemesh.v1.MeshService.EpochNumLayers:output_type -> spacemesh.v1.EpochNumLayersResponse
+	17, // 17: spacemesh.v1.MeshService.LayerDuration:output_type -> spacemesh.v1.LayerDurationResponse
+	18, // 18: spacemesh.v1.MeshService.MaxTransactionsPerSecond:output_type -> spacemesh.v1.MaxTransactionsPerSecondResponse
+	19, // 19: spacemesh.v1.MeshService.AccountMeshDataQuery:output_type -> spacemesh.v1.AccountMeshDataQueryResponse
+	20, // 20: spacemesh.v1.MeshService.LayersQuery:output_type -> spacemesh.v1.LayersQueryResponse
+	21, // 21: spacemesh.v1.MeshService.AccountMeshDataStream:output_type -> spacemesh.v1.AccountMeshDataStreamResponse
+	22, // 22: spacemesh.v1.MeshService.LayerStream:output_type -> spacemesh.v1.LayerStreamResponse
+	23, // 23: spacemesh.v1.MeshService.EpochStream:output_type -> spacemesh.v1.EpochStreamResponse
+	12, // [12:24] is the sub-list for method output_type
+	0,  // [0:12] is the sub-list for method input_type
 	0,  // [0:0] is the sub-list for extension type_name
 	0,  // [0:0] is the sub-list for extension extendee
 	0,  // [0:0] is the sub-list for field type_name
@@ -218,6 +227,8 @@ type MeshServiceClient interface {
 	// Layer with blocks, transactions and activations
 	// Sent each time layer data changes. Designed for heavy-duty clients.
 	LayerStream(ctx context.Context, in *LayerStreamRequest, opts ...grpc.CallOption) (MeshService_LayerStreamClient, error)
+	// Epoch activation transactions.
+	EpochStream(ctx context.Context, in *EpochStreamRequest, opts ...grpc.CallOption) (MeshService_EpochStreamClient, error)
 }
 
 type meshServiceClient struct {
@@ -373,6 +384,38 @@ func (x *meshServiceLayerStreamClient) Recv() (*LayerStreamResponse, error) {
 	return m, nil
 }
 
+func (c *meshServiceClient) EpochStream(ctx context.Context, in *EpochStreamRequest, opts ...grpc.CallOption) (MeshService_EpochStreamClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_MeshService_serviceDesc.Streams[2], "/spacemesh.v1.MeshService/EpochStream", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &meshServiceEpochStreamClient{stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+type MeshService_EpochStreamClient interface {
+	Recv() (*EpochStreamResponse, error)
+	grpc.ClientStream
+}
+
+type meshServiceEpochStreamClient struct {
+	grpc.ClientStream
+}
+
+func (x *meshServiceEpochStreamClient) Recv() (*EpochStreamResponse, error) {
+	m := new(EpochStreamResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
 // MeshServiceServer is the server API for MeshService service.
 type MeshServiceServer interface {
 	// Network genesis time as unix epoch time
@@ -399,6 +442,8 @@ type MeshServiceServer interface {
 	// Layer with blocks, transactions and activations
 	// Sent each time layer data changes. Designed for heavy-duty clients.
 	LayerStream(*LayerStreamRequest, MeshService_LayerStreamServer) error
+	// Epoch activation transactions.
+	EpochStream(*EpochStreamRequest, MeshService_EpochStreamServer) error
 }
 
 // UnimplementedMeshServiceServer can be embedded to have forward compatible implementations.
@@ -438,6 +483,9 @@ func (*UnimplementedMeshServiceServer) AccountMeshDataStream(*AccountMeshDataStr
 func (*UnimplementedMeshServiceServer) LayerStream(*LayerStreamRequest, MeshService_LayerStreamServer) error {
 	return status.Errorf(codes.Unimplemented, "method LayerStream not implemented")
 }
+func (*UnimplementedMeshServiceServer) EpochStream(*EpochStreamRequest, MeshService_EpochStreamServer) error {
+	return status.Errorf(codes.Unimplemented, "method EpochStream not implemented")
+}
 
 func RegisterMeshServiceServer(s *grpc.Server, srv MeshServiceServer) {
 	s.RegisterService(&_MeshService_serviceDesc, srv)
@@ -647,6 +695,27 @@ func (x *meshServiceLayerStreamServer) Send(m *LayerStreamResponse) error {
 	return x.ServerStream.SendMsg(m)
 }
 
+func _MeshService_EpochStream_Handler(srv interface{}, stream grpc.ServerStream) error {
+	m := new(EpochStreamRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(MeshServiceServer).EpochStream(m, &meshServiceEpochStreamServer{stream})
+}
+
+type MeshService_EpochStreamServer interface {
+	Send(*EpochStreamResponse) error
+	grpc.ServerStream
+}
+
+type meshServiceEpochStreamServer struct {
+	grpc.ServerStream
+}
+
+func (x *meshServiceEpochStreamServer) Send(m *EpochStreamResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
 var _MeshService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "spacemesh.v1.MeshService",
 	HandlerType: (*MeshServiceServer)(nil),
@@ -699,6 +768,11 @@ var _MeshService_serviceDesc = grpc.ServiceDesc{
 			Handler:       _MeshService_LayerStream_Handler,
 			ServerStreams: true,
 		},
+		{
+			StreamName:    "EpochStream",
+			Handler:       _MeshService_EpochStream_Handler,
+			ServerStreams: true,
+		},
 	},
 	Metadata: "spacemesh/v1/mesh.proto",
 }
diff --git a/release/go/spacemesh/v1/mesh_types.pb.go b/release/go/spacemesh/v1/mesh_types.pb.go
index b3e5f77c..b3015a7a 100644
--- a/release/go/spacemesh/v1/mesh_types.pb.go
+++ b/release/go/spacemesh/v1/mesh_types.pb.go
@@ -1208,6 +1208,100 @@ func (x *LayerStreamResponse) GetLayer() *Layer {
 	return nil
 }
 
+type EpochStreamRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Epoch uint32 `protobuf:"varint,1,opt,name=epoch,proto3" json:"epoch,omitempty"`
+}
+
+func (x *EpochStreamRequest) Reset() {
+	*x = EpochStreamRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_spacemesh_v1_mesh_types_proto_msgTypes[24]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *EpochStreamRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*EpochStreamRequest) ProtoMessage() {}
+
+func (x *EpochStreamRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_spacemesh_v1_mesh_types_proto_msgTypes[24]
+	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 EpochStreamRequest.ProtoReflect.Descriptor instead.
+func (*EpochStreamRequest) Descriptor() ([]byte, []int) {
+	return file_spacemesh_v1_mesh_types_proto_rawDescGZIP(), []int{24}
+}
+
+func (x *EpochStreamRequest) GetEpoch() uint32 {
+	if x != nil {
+		return x.Epoch
+	}
+	return 0
+}
+
+type EpochStreamResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Ids []*ActivationId `protobuf:"bytes,1,rep,name=ids,proto3" json:"ids,omitempty"`
+}
+
+func (x *EpochStreamResponse) Reset() {
+	*x = EpochStreamResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_spacemesh_v1_mesh_types_proto_msgTypes[25]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *EpochStreamResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*EpochStreamResponse) ProtoMessage() {}
+
+func (x *EpochStreamResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_spacemesh_v1_mesh_types_proto_msgTypes[25]
+	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 EpochStreamResponse.ProtoReflect.Descriptor instead.
+func (*EpochStreamResponse) Descriptor() ([]byte, []int) {
+	return file_spacemesh_v1_mesh_types_proto_rawDescGZIP(), []int{25}
+}
+
+func (x *EpochStreamResponse) GetIds() []*ActivationId {
+	if x != nil {
+		return x.Ids
+	}
+	return nil
+}
+
 var File_spacemesh_v1_mesh_types_proto protoreflect.FileDescriptor
 
 var file_spacemesh_v1_mesh_types_proto_rawDesc = []byte{
@@ -1329,20 +1423,27 @@ var file_spacemesh_v1_mesh_types_proto_rawDesc = []byte{
 	0x6d, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x29, 0x0a, 0x05, 0x6c, 0x61, 0x79,
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+	0x22, 0x43, 0x0a, 0x13, 0x45, 0x70, 0x6f, 0x63, 0x68, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x52,
+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x2c, 0x0a, 0x03, 0x69, 0x64, 0x73, 0x18, 0x01,
+	0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68,
+	0x2e, 0x76, 0x31, 0x2e, 0x41, 0x63, 0x74, 0x69, 0x76, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x49, 0x64,
+	0x52, 0x03, 0x69, 0x64, 0x73, 0x2a, 0x8e, 0x01, 0x0a, 0x13, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e,
+	0x74, 0x4d, 0x65, 0x73, 0x68, 0x44, 0x61, 0x74, 0x61, 0x46, 0x6c, 0x61, 0x67, 0x12, 0x26, 0x0a,
 	0x22, 0x41, 0x43, 0x43, 0x4f, 0x55, 0x4e, 0x54, 0x5f, 0x4d, 0x45, 0x53, 0x48, 0x5f, 0x44, 0x41,
-	0x54, 0x41, 0x5f, 0x46, 0x4c, 0x41, 0x47, 0x5f, 0x41, 0x43, 0x54, 0x49, 0x56, 0x41, 0x54, 0x49,
-	0x4f, 0x4e, 0x53, 0x10, 0x02, 0x42, 0x34, 0x5a, 0x32, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e,
-	0x63, 0x6f, 0x6d, 0x2f, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x6f, 0x73, 0x2f,
-	0x61, 0x70, 0x69, 0x2f, 0x72, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x2f, 0x67, 0x6f, 0x2f, 0x73,
-	0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x33,
+	0x54, 0x41, 0x5f, 0x46, 0x4c, 0x41, 0x47, 0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46,
+	0x49, 0x45, 0x44, 0x10, 0x00, 0x12, 0x27, 0x0a, 0x23, 0x41, 0x43, 0x43, 0x4f, 0x55, 0x4e, 0x54,
+	0x5f, 0x4d, 0x45, 0x53, 0x48, 0x5f, 0x44, 0x41, 0x54, 0x41, 0x5f, 0x46, 0x4c, 0x41, 0x47, 0x5f,
+	0x54, 0x52, 0x41, 0x4e, 0x53, 0x41, 0x43, 0x54, 0x49, 0x4f, 0x4e, 0x53, 0x10, 0x01, 0x12, 0x26,
+	0x0a, 0x22, 0x41, 0x43, 0x43, 0x4f, 0x55, 0x4e, 0x54, 0x5f, 0x4d, 0x45, 0x53, 0x48, 0x5f, 0x44,
+	0x41, 0x54, 0x41, 0x5f, 0x46, 0x4c, 0x41, 0x47, 0x5f, 0x41, 0x43, 0x54, 0x49, 0x56, 0x41, 0x54,
+	0x49, 0x4f, 0x4e, 0x53, 0x10, 0x02, 0x42, 0x34, 0x5a, 0x32, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62,
+	0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x6f, 0x73,
+	0x2f, 0x61, 0x70, 0x69, 0x2f, 0x72, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x2f, 0x67, 0x6f, 0x2f,
+	0x73, 0x70, 0x61, 0x63, 0x65, 0x6d, 0x65, 0x73, 0x68, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1358,7 +1459,7 @@ func file_spacemesh_v1_mesh_types_proto_rawDescGZIP() []byte {
 }
 
 var file_spacemesh_v1_mesh_types_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_spacemesh_v1_mesh_types_proto_msgTypes = make([]protoimpl.MessageInfo, 24)
+var file_spacemesh_v1_mesh_types_proto_msgTypes = make([]protoimpl.MessageInfo, 26)
 var file_spacemesh_v1_mesh_types_proto_goTypes = []interface{}{
 	(AccountMeshDataFlag)(0),                 // 0: spacemesh.v1.AccountMeshDataFlag
 	(*GenesisTimeRequest)(nil),               // 1: spacemesh.v1.GenesisTimeRequest
@@ -1385,37 +1486,41 @@ var file_spacemesh_v1_mesh_types_proto_goTypes = []interface{}{
 	(*LayersQueryResponse)(nil),              // 22: spacemesh.v1.LayersQueryResponse
 	(*LayerStreamRequest)(nil),               // 23: spacemesh.v1.LayerStreamRequest
 	(*LayerStreamResponse)(nil),              // 24: spacemesh.v1.LayerStreamResponse
-	(*SimpleInt)(nil),                        // 25: spacemesh.v1.SimpleInt
-	(*LayerNumber)(nil),                      // 26: spacemesh.v1.LayerNumber
-	(*AccountId)(nil),                        // 27: spacemesh.v1.AccountId
-	(*MeshTransaction)(nil),                  // 28: spacemesh.v1.MeshTransaction
-	(*Activation)(nil),                       // 29: spacemesh.v1.Activation
-	(*Layer)(nil),                            // 30: spacemesh.v1.Layer
+	(*EpochStreamRequest)(nil),               // 25: spacemesh.v1.EpochStreamRequest
+	(*EpochStreamResponse)(nil),              // 26: spacemesh.v1.EpochStreamResponse
+	(*SimpleInt)(nil),                        // 27: spacemesh.v1.SimpleInt
+	(*LayerNumber)(nil),                      // 28: spacemesh.v1.LayerNumber
+	(*AccountId)(nil),                        // 29: spacemesh.v1.AccountId
+	(*MeshTransaction)(nil),                  // 30: spacemesh.v1.MeshTransaction
+	(*Activation)(nil),                       // 31: spacemesh.v1.Activation
+	(*Layer)(nil),                            // 32: spacemesh.v1.Layer
+	(*ActivationId)(nil),                     // 33: spacemesh.v1.ActivationId
 }
 var file_spacemesh_v1_mesh_types_proto_depIdxs = []int32{
-	25, // 0: spacemesh.v1.GenesisTimeResponse.unixtime:type_name -> spacemesh.v1.SimpleInt
-	26, // 1: spacemesh.v1.CurrentLayerResponse.layernum:type_name -> spacemesh.v1.LayerNumber
-	25, // 2: spacemesh.v1.CurrentEpochResponse.epochnum:type_name -> spacemesh.v1.SimpleInt
-	25, // 3: spacemesh.v1.EpochNumLayersResponse.numlayers:type_name -> spacemesh.v1.SimpleInt
-	25, // 4: spacemesh.v1.LayerDurationResponse.duration:type_name -> spacemesh.v1.SimpleInt
-	25, // 5: spacemesh.v1.MaxTransactionsPerSecondResponse.max_txs_per_second:type_name -> spacemesh.v1.SimpleInt
-	27, // 6: spacemesh.v1.AccountMeshDataFilter.account_id:type_name -> spacemesh.v1.AccountId
-	28, // 7: spacemesh.v1.AccountMeshData.mesh_transaction:type_name -> spacemesh.v1.MeshTransaction
-	29, // 8: spacemesh.v1.AccountMeshData.activation:type_name -> spacemesh.v1.Activation
+	27, // 0: spacemesh.v1.GenesisTimeResponse.unixtime:type_name -> spacemesh.v1.SimpleInt
+	28, // 1: spacemesh.v1.CurrentLayerResponse.layernum:type_name -> spacemesh.v1.LayerNumber
+	27, // 2: spacemesh.v1.CurrentEpochResponse.epochnum:type_name -> spacemesh.v1.SimpleInt
+	27, // 3: spacemesh.v1.EpochNumLayersResponse.numlayers:type_name -> spacemesh.v1.SimpleInt
+	27, // 4: spacemesh.v1.LayerDurationResponse.duration:type_name -> spacemesh.v1.SimpleInt
+	27, // 5: spacemesh.v1.MaxTransactionsPerSecondResponse.max_txs_per_second:type_name -> spacemesh.v1.SimpleInt
+	29, // 6: spacemesh.v1.AccountMeshDataFilter.account_id:type_name -> spacemesh.v1.AccountId
+	30, // 7: spacemesh.v1.AccountMeshData.mesh_transaction:type_name -> spacemesh.v1.MeshTransaction
+	31, // 8: spacemesh.v1.AccountMeshData.activation:type_name -> spacemesh.v1.Activation
 	15, // 9: spacemesh.v1.AccountMeshDataStreamRequest.filter:type_name -> spacemesh.v1.AccountMeshDataFilter
 	16, // 10: spacemesh.v1.AccountMeshDataStreamResponse.datum:type_name -> spacemesh.v1.AccountMeshData
 	15, // 11: spacemesh.v1.AccountMeshDataQueryRequest.filter:type_name -> spacemesh.v1.AccountMeshDataFilter
-	26, // 12: spacemesh.v1.AccountMeshDataQueryRequest.min_layer:type_name -> spacemesh.v1.LayerNumber
+	28, // 12: spacemesh.v1.AccountMeshDataQueryRequest.min_layer:type_name -> spacemesh.v1.LayerNumber
 	16, // 13: spacemesh.v1.AccountMeshDataQueryResponse.data:type_name -> spacemesh.v1.AccountMeshData
-	26, // 14: spacemesh.v1.LayersQueryRequest.start_layer:type_name -> spacemesh.v1.LayerNumber
-	26, // 15: spacemesh.v1.LayersQueryRequest.end_layer:type_name -> spacemesh.v1.LayerNumber
-	30, // 16: spacemesh.v1.LayersQueryResponse.layer:type_name -> spacemesh.v1.Layer
-	30, // 17: spacemesh.v1.LayerStreamResponse.layer:type_name -> spacemesh.v1.Layer
-	18, // [18:18] is the sub-list for method output_type
-	18, // [18:18] is the sub-list for method input_type
-	18, // [18:18] is the sub-list for extension type_name
-	18, // [18:18] is the sub-list for extension extendee
-	0,  // [0:18] is the sub-list for field type_name
+	28, // 14: spacemesh.v1.LayersQueryRequest.start_layer:type_name -> spacemesh.v1.LayerNumber
+	28, // 15: spacemesh.v1.LayersQueryRequest.end_layer:type_name -> spacemesh.v1.LayerNumber
+	32, // 16: spacemesh.v1.LayersQueryResponse.layer:type_name -> spacemesh.v1.Layer
+	32, // 17: spacemesh.v1.LayerStreamResponse.layer:type_name -> spacemesh.v1.Layer
+	33, // 18: spacemesh.v1.EpochStreamResponse.ids:type_name -> spacemesh.v1.ActivationId
+	19, // [19:19] is the sub-list for method output_type
+	19, // [19:19] is the sub-list for method input_type
+	19, // [19:19] is the sub-list for extension type_name
+	19, // [19:19] is the sub-list for extension extendee
+	0,  // [0:19] is the sub-list for field type_name
 }
 
 func init() { file_spacemesh_v1_mesh_types_proto_init() }
@@ -1713,6 +1818,30 @@ func file_spacemesh_v1_mesh_types_proto_init() {
 				return nil
 			}
 		}
+		file_spacemesh_v1_mesh_types_proto_msgTypes[24].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*EpochStreamRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_spacemesh_v1_mesh_types_proto_msgTypes[25].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*EpochStreamResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	file_spacemesh_v1_mesh_types_proto_msgTypes[15].OneofWrappers = []interface{}{
 		(*AccountMeshData_MeshTransaction)(nil),
@@ -1724,7 +1853,7 @@ func file_spacemesh_v1_mesh_types_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_spacemesh_v1_mesh_types_proto_rawDesc,
 			NumEnums:      1,
-			NumMessages:   24,
+			NumMessages:   26,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/spacemesh/v1/mesh.proto b/spacemesh/v1/mesh.proto
index 19c9cc97..2ae24213 100644
--- a/spacemesh/v1/mesh.proto
+++ b/spacemesh/v1/mesh.proto
@@ -46,4 +46,7 @@ service MeshService {
     // Layer with blocks, transactions and activations
     // Sent each time layer data changes. Designed for heavy-duty clients.
     rpc LayerStream(LayerStreamRequest) returns (stream LayerStreamResponse);
+
+    // Epoch activation transactions.
+    rpc EpochStream(EpochStreamRequest) returns (stream EpochStreamResponse);
 }
diff --git a/spacemesh/v1/mesh_types.proto b/spacemesh/v1/mesh_types.proto
index 7b2be067..97331481 100644
--- a/spacemesh/v1/mesh_types.proto
+++ b/spacemesh/v1/mesh_types.proto
@@ -99,3 +99,11 @@ message LayerStreamRequest {}
 message LayerStreamResponse {
     Layer layer = 1;
 }
+
+message EpochStreamRequest {
+    uint32 epoch = 1;
+}
+
+message EpochStreamResponse {
+    repeated ActivationId ids = 1;
+}