diff --git a/src/BlockchainSetup.cpp b/src/BlockchainSetup.cpp
index 6ed97d3..b9bd0bb 100755
--- a/src/BlockchainSetup.cpp
+++ b/src/BlockchainSetup.cpp
@@ -3,6 +3,7 @@
 //
 
 #include "BlockchainSetup.h"
+#include "xmregcore/src/tools.h"
 
 namespace xmreg
 {
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f442b80..44a589e 100755
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -19,10 +19,8 @@ set(SOURCE_FILES
         utils.cpp
         RandomOutputs.cpp)
 
-add_library(myxmr STATIC)
-
-target_sources(myxmr
-    PRIVATE ${SOURCE_FILES})
+add_library(myxmr STATIC
+    ${SOURCE_FILES})
 
 target_link_libraries(myxmr 
     PUBLIC
diff --git a/src/utils.cpp b/src/utils.cpp
index 0134e08..0c707d5 100755
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -9,42 +9,6 @@
 namespace xmreg
 {
 
-/**
- * Parse key string, e.g., a viewkey in a string
- * into crypto::secret_key or crypto::public_key
- * depending on the template argument.
- */
-template <typename T>
-bool
-parse_str_secret_key(const string& key_str, T& secret_key)
-{
-
-    // hash and keys have same structure, so to parse string of
-    // a key, e.g., a view key, we can first parse it into the hash
-    // object using parse_hash256 function, and then copy the reslting
-    // hash data into secret key.
-    crypto::hash hash_;
-
-    if(!parse_hash256(key_str, hash_))
-    {
-        cerr << "Cant parse a key (e.g. viewkey): " << key_str << endl;
-        return false;
-    }
-
-    // crypto::hash and crypto::secret_key have basicly same
-    // structure. They both keep they key/hash as c-style char array
-    // of fixed size. Thus we can just copy data from hash
-    // to key
-    copy(begin(hash_.data), end(hash_.data), secret_key.data);
-
-    return true;
-}
-
-// explicit instantiations of get template function
-template bool parse_str_secret_key<crypto::secret_key>(const string& key_str, crypto::secret_key& secret_key);
-template bool parse_str_secret_key<crypto::public_key>(const string& key_str, crypto::public_key& secret_key);
-template bool parse_str_secret_key<crypto::hash>(const string& key_str, crypto::hash& secret_key);
-template bool parse_str_secret_key<crypto::hash8>(const string& key_str, crypto::hash8& secret_key);
 
 /**
  * Get transaction tx using given tx hash. Hash is represent as string here,
@@ -76,20 +40,6 @@ get_tx_pub_key_from_str_hash(Blockchain& core_storage, const string& hash_str, t
  * cryptonote::account_public_address object
  */
 
-bool
-parse_str_address(const string& address_str,
-                  address_parse_info& address_info,
-                  network_type net_type)
-{
-
-    if (!get_account_address_from_str(address_info, net_type, address_str))
-    {
-        //cerr << "Error getting address: " << address_str << '\n';
-        return false;
-    }
-
-    return true;
-}
 
 
 string
@@ -116,27 +66,6 @@ is_separator(char c)
 }
 
 
-
-/**
- * Remove trailinig path separator.
- */
-string
-remove_trailing_path_separator(const string& in_path)
-{
-    string new_string = in_path;
-    if (!new_string.empty() && is_separator(new_string[new_string.size() - 1]))
-        new_string.erase(new_string.size() - 1);
-    return new_string;
-}
-
-bf::path
-remove_trailing_path_separator(const bf::path& in_path)
-{
-    string path_str = in_path.native();
-    return bf::path(remove_trailing_path_separator(path_str));
-}
-
-
 string
 timestamp_to_str_gm(time_t timestamp, const char* format)
 {
@@ -236,70 +165,6 @@ generate_key_image(const crypto::key_derivation& derivation,
 }
 
 
-string
-get_default_lmdb_folder(network_type nettype)
-{
-    // default path to monero folder
-    // on linux this is /home/<username>/.bitmonero
-    string default_monero_dir = tools::get_default_data_dir();
-
-    if (nettype == cryptonote::network_type::TESTNET)
-        default_monero_dir += "/testnet";
-    if (nettype == cryptonote::network_type::STAGENET)
-        default_monero_dir += "/stagenet";
-
-
-    // the default folder of the lmdb blockchain database
-    // is therefore as follows
-    return default_monero_dir + string("/lmdb");
-}
-
-
-
-/*
- * Ge blockchain exception from command line option
- *
- * If not given, provide default path
- */
-bool
-get_blockchain_path(bf::path& blockchain_path,
-                    cryptonote::network_type nettype)
-{
-    // the default folder of the lmdb blockchain database
-    string default_lmdb_dir   = xmreg::get_default_lmdb_folder(nettype);
-
-    blockchain_path = !blockchain_path.empty()
-                      ? blockchain_path
-                      : bf::path(default_lmdb_dir);
-
-    if (!bf::is_directory(blockchain_path))
-    {
-        cerr << "Given path \"" << blockchain_path   << "\" "
-             << "is not a folder or does not exist \n";
-
-        return false;
-    }
-
-    blockchain_path = xmreg::remove_trailing_path_separator(blockchain_path);
-
-    return true;
-}
-
-bool
-get_blockchain_path(string& blockchain_path,
-                    cryptonote::network_type nettype)
-{
-    bf::path p {blockchain_path};
-
-    if (!get_blockchain_path(p, nettype))
-        return false;
-
-    blockchain_path = p.string();
-
-    return true;
-}
-
-
 array<uint64_t, 4>
 summary_of_in_out_rct(
         const transaction& tx,
@@ -1309,22 +1174,6 @@ make_hash(const string& in_str)
 }
 
 
-bool
-hex_to_tx(string const& tx_hex, transaction& tx, crypto::hash& tx_hash,  crypto::hash& tx_prefix_hash)
-{
-    std::string tx_blob;
-
-    epee::string_tools::parse_hexstr_to_binbuff(tx_hex, tx_blob);
-
-    return parse_and_validate_tx_from_blob(tx_blob, tx, tx_hash, tx_prefix_hash);
-}
-
-string
-tx_to_hex(transaction const& tx)
-{
-    return epee::string_tools::buff_to_hex_nodelimer(t_serializable_object_to_blob(tx));
-}
-
 bool
 hex_to_tx_blob(string const& tx_hex, string& tx_blob)
 {
@@ -1405,22 +1254,6 @@ blocks_and_txs_from_complete_blocks(
     return true;
 }
 
-bool
-addr_and_viewkey_from_string(string const& addres_str,
-                             string const& viewkey_str,
-                             network_type net_type,
-                             address_parse_info& address,
-                             crypto::secret_key& viewkey)
-{
-    if (!xmreg::parse_str_address(addres_str, address, net_type))
-        return false;
-
-    if (!xmreg::parse_str_secret_key(viewkey_str, viewkey))
-          return false;
-
-    return true;
-}
-
 bool
 output_data_from_hex(
         string const& out_data_hex,
diff --git a/src/utils.h b/src/utils.h
index b409b3e..2e827bd 100755
--- a/src/utils.h
+++ b/src/utils.h
@@ -50,33 +50,18 @@ using json = nlohmann::json;
 using  epee::string_tools::pod_to_hex;
 using  epee::string_tools::hex_to_pod;
 
-template <typename T>
-bool
-parse_str_secret_key(const string& key_str, T& secret_key);
-
 
 bool
 get_tx_pub_key_from_str_hash(Blockchain& core_storage,
                          const string& hash_str,
                          transaction& tx);
 
-bool
-parse_str_address(const string& address_str,
-                  address_parse_info& address_info,
-                  cryptonote::network_type nettype = cryptonote::network_type::MAINNET);
-
 inline bool
 is_separator(char c);
 
 string
 print_sig (const signature& sig);
 
-string
-remove_trailing_path_separator(const string& in_path);
-
-bf::path
-remove_trailing_path_separator(const bf::path& in_path);
-
 
 string
 timestamp_to_str_gm(time_t timestamp, const char* format = "%F %T");
@@ -85,9 +70,6 @@ ostream&
 operator<< (ostream& os, const address_parse_info& addr);
 
 
-string
-get_default_lmdb_folder(network_type nettype = network_type::MAINNET);
-
 bool
 generate_key_image(const crypto::key_derivation& derivation,
                    const std::size_t output_index,
@@ -95,13 +77,7 @@ generate_key_image(const crypto::key_derivation& derivation,
                    const crypto::public_key& pub_key,
                    crypto::key_image& key_img);
 
-bool
-get_blockchain_path(bf::path& blockchain_path,
-                    network_type nettype = network_type::MAINNET);
 
-bool
-get_blockchain_path(string& blockchain_path,
-                    network_type nettype = network_type::MAINNET);
 
 array<uint64_t, 4>
 summary_of_in_out_rct(
@@ -279,13 +255,6 @@ get_human_readable_timestamp(uint64_t ts);
 string
 make_hash(const string& in_str);
 
-bool
-hex_to_tx(string const& tx_hex, transaction& tx,
-          crypto::hash& tx_hash,  crypto::hash& tx_prefix_hash);
-
-string
-tx_to_hex(transaction const& tx);
-
 
 bool
 hex_to_tx_blob(string const& tx_hex, string& tx_blob);
@@ -304,13 +273,6 @@ blocks_and_txs_from_complete_blocks(
         vector<block>& blocks,
         vector<transaction>& txs);
 
-bool
-addr_and_viewkey_from_string(string const& addres_str,
-                             string const& viewkey_str,
-                             network_type net_type,
-                             address_parse_info& address_info,
-                             crypto::secret_key& viewkey);
-
 // this function only useful in google test for mocking
 // ring member output info
 bool
diff --git a/src/xmregcore b/src/xmregcore
index efeff91..447ac6f 160000
--- a/src/xmregcore
+++ b/src/xmregcore
@@ -1 +1 @@
-Subproject commit efeff91fcfe767f5f0891879b7364e565ca52e69
+Subproject commit 447ac6fe53057a85f5468da030af24aacaa3fa61
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 270faa7..3d4a748 100755
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,9 +1,6 @@
 macro(add_om_test _TEST_NAME)
 
-    add_executable(${_TEST_NAME}_tests)
-
-    target_sources(${_TEST_NAME}_tests
-            PRIVATE 
+    add_executable(${_TEST_NAME}_tests
             "${_TEST_NAME}_tests.cpp"
             JsonTx.cpp)
 
@@ -30,20 +27,20 @@ add_om_test(txsearch)
 ########## CODE COVERAGE #############
 ######################################
 
-include(CodeCoverage)
+#include(CodeCoverage)
 
-APPEND_COVERAGE_COMPILER_FLAGS()
+#APPEND_COVERAGE_COMPILER_FLAGS()
 
-set(COVERAGE_LCOV_EXCLUDES
-    '*/ext/*' '*boost/*' '*c++/*'
-     '*/monero/*' '*googletest/*' '*googlemock/*'
-     '*restbed/*' '*/mysql++/*' '*tests/*'
-     '*src/xmregcore/*')
+#set(COVERAGE_LCOV_EXCLUDES
+    #'*/ext/*' '*boost/*' '*c++/*'
+     #'*/monero/*' '*googletest/*' '*googlemock/*'
+     #'*restbed/*' '*/mysql++/*' '*tests/*'
+     #'*src/xmregcore/*')
 
- SETUP_TARGET_FOR_COVERAGE_LCOV(
-       NAME coverage
-       EXECUTABLE mysql_tests
-                  microcore_tests
-                  bcstatus
-                  txsearch)
+ #SETUP_TARGET_FOR_COVERAGE_LCOV(
+       #NAME coverage
+       #EXECUTABLE mysql_tests
+                  #microcore_tests
+                  #bcstatus
+                  #txsearch)
 
diff --git a/tests/JsonTx.cpp b/tests/JsonTx.cpp
index 31600bd..0d301fc 100644
--- a/tests/JsonTx.cpp
+++ b/tests/JsonTx.cpp
@@ -1,4 +1,5 @@
 #include "JsonTx.h"
+#include "../src/xmregcore/src/tools.h"
 
 namespace xmreg
 {