diff --git a/libraries/app/api.cpp b/libraries/app/api.cpp
index 73861eb8..fab06cda 100644
--- a/libraries/app/api.cpp
+++ b/libraries/app/api.cpp
@@ -551,7 +551,7 @@ namespace graphene { namespace app {
        return result;
     }
 
-    vector<operation_history_object> history_api::get_account_history( account_id_type account,
+    vector<operation_history_object> history_api::get_account_history( const std::string account_id_or_name,
                                                                        operation_history_id_type stop,
                                                                        unsigned limit,
                                                                        operation_history_id_type start ) const
@@ -560,7 +560,9 @@ namespace graphene { namespace app {
         const auto& db = *_app.chain_database();
         FC_ASSERT( limit <= 100 );
         vector<operation_history_object> result;
+        account_id_type account;
         try {
+           account = database_api.get_account_id_from_string(account_id_or_name);
            const account_transaction_history_object& node = account(db).statistics(db).most_recent_op(db);
            if(start == operation_history_id_type() || start.instance.value > node.operation_id.instance.value)
               start = node.operation_id;
@@ -584,7 +586,7 @@ namespace graphene { namespace app {
         return result;
     }
 
-    vector<operation_history_object> history_api::get_account_history_operations( account_id_type account,
+    vector<operation_history_object> history_api::get_account_history_operations( const std::string account_id_or_name,
                                                                        int operation_id,
                                                                        operation_history_id_type start,
                                                                        operation_history_id_type stop,
@@ -594,6 +596,11 @@ namespace graphene { namespace app {
        const auto& db = *_app.chain_database();
        FC_ASSERT( limit <= 100 );
        vector<operation_history_object> result;
+       account_id_type account;
+       try {
+         account = database_api.get_account_id_from_string(account_id_or_name);
+       } catch (...) { return result; }
+       
        const auto& stats = account(db).statistics(db);
        if( stats.most_recent_op == account_transaction_history_id_type() ) return result;
        const account_transaction_history_object* node = &stats.most_recent_op(db);
@@ -620,7 +627,7 @@ namespace graphene { namespace app {
     }
 
 
-    vector<operation_history_object> history_api::get_relative_account_history( account_id_type account,
+    vector<operation_history_object> history_api::get_relative_account_history( const std::string account_id_or_name,
                                                                                 uint32_t stop,
                                                                                 unsigned limit,
                                                                                 uint32_t start) const
@@ -629,6 +636,10 @@ namespace graphene { namespace app {
        const auto& db = *_app.chain_database();
        FC_ASSERT(limit <= 100);
        vector<operation_history_object> result;
+       account_id_type account;
+       try {
+          account = database_api.get_account_id_from_string(account_id_or_name);
+       } catch(...) { return result; }
        const auto& stats = account(db).statistics(db);
        if( start == 0 )
           start = stats.total_ops;
diff --git a/libraries/app/database_api.cpp b/libraries/app/database_api.cpp
index a9d32764..3ea62c6c 100644
--- a/libraries/app/database_api.cpp
+++ b/libraries/app/database_api.cpp
@@ -81,20 +81,20 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
      bool is_public_key_registered(string public_key) const;
 
       // Accounts
-      vector<optional<account_object>> get_accounts(const vector<account_id_type>& account_ids)const;
+      account_id_type get_account_id_from_string(const std::string& name_or_id)const;
+      vector<optional<account_object>> get_accounts(const vector<std::string>& account_names_or_ids)const;
       std::map<string,full_account> get_full_accounts( const vector<string>& names_or_ids, bool subscribe );
       optional<account_object> get_account_by_name( string name )const;
-      vector<account_id_type> get_account_references( account_id_type account_id )const;
+      vector<account_id_type> get_account_references( const std::string account_id_or_name )const;
       vector<optional<account_object>> lookup_account_names(const vector<string>& account_names)const;
       map<string,account_id_type> lookup_accounts(const string& lower_bound_name, uint32_t limit)const;
       uint64_t get_account_count()const;
 
       // Balances
-      vector<asset> get_account_balances(account_id_type id, const flat_set<asset_id_type>& assets)const;
-      vector<asset> get_named_account_balances(const std::string& name, const flat_set<asset_id_type>& assets)const;
+      vector<asset> get_account_balances(const std::string& account_name_or_id, const flat_set<asset_id_type>& assets)const;
       vector<balance_object> get_balance_objects( const vector<address>& addrs )const;
       vector<asset> get_vested_balances( const vector<balance_id_type>& objs )const;
-      vector<vesting_balance_object> get_vesting_balances( account_id_type account_id )const;
+      vector<vesting_balance_object> get_vesting_balances( const std::string account_id_or_name )const;
 
       // Assets
       vector<optional<asset_object>> get_assets(const vector<asset_id_type>& asset_ids)const;
@@ -127,7 +127,7 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
       vector<limit_order_object>         get_limit_orders(asset_id_type a, asset_id_type b, uint32_t limit)const;
       vector<call_order_object>          get_call_orders(asset_id_type a, uint32_t limit)const;
       vector<force_settlement_object>    get_settle_orders(asset_id_type a, uint32_t limit)const;
-      vector<call_order_object>          get_margin_positions( const account_id_type& id )const;
+      vector<call_order_object>          get_margin_positions( const std::string account_id_or_name )const;
       void subscribe_to_market(std::function<void(const variant&)> callback, asset_id_type a, asset_id_type b);
       void unsubscribe_from_market(asset_id_type a, asset_id_type b);
       market_ticker                      get_ticker( const string& base, const string& quote )const;
@@ -137,13 +137,13 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
 
       // Witnesses
       vector<optional<witness_object>> get_witnesses(const vector<witness_id_type>& witness_ids)const;
-      fc::optional<witness_object> get_witness_by_account(account_id_type account)const;
+      fc::optional<witness_object> get_witness_by_account(const std::string account_id_or_name)const;
       map<string, witness_id_type> lookup_witness_accounts(const string& lower_bound_name, uint32_t limit)const;
       uint64_t get_witness_count()const;
 
       // Committee members
       vector<optional<committee_member_object>> get_committee_members(const vector<committee_member_id_type>& committee_member_ids)const;
-      fc::optional<committee_member_object> get_committee_member_by_account(account_id_type account)const;
+      fc::optional<committee_member_object> get_committee_member_by_account(const std::string account_id_or_name)const;
       map<string, committee_member_id_type> lookup_committee_member_accounts(const string& lower_bound_name, uint32_t limit)const;
 
       // Votes
@@ -160,7 +160,7 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
       vector< fc::variant > get_required_fees( const vector<operation>& ops, asset_id_type id )const;
 
       // Proposed transactions
-      vector<proposal_object> get_proposed_transactions( account_id_type id )const;
+      vector<proposal_object> get_proposed_transactions( const std::string account_id_or_name )const;
 
       // Blinded balances
       vector<blinded_balance_object> get_blinded_balances( const flat_set<commitment_type>& commitments )const;
@@ -175,6 +175,8 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
       gpos_info get_gpos_info(const account_id_type account) const;
 
    //private:
+      const account_object* get_account_from_string( const std::string& name_or_id,
+                                                     bool throw_if_not_found = true ) const;
       template<typename T>
       void subscribe_to_item( const T& i )const
       {
@@ -614,22 +616,27 @@ bool database_api_impl::is_public_key_registered(string public_key) const
 //                                                                  //
 //////////////////////////////////////////////////////////////////////
 
-vector<optional<account_object>> database_api::get_accounts(const vector<account_id_type>& account_ids)const
+account_id_type database_api::get_account_id_from_string(const std::string& name_or_id)const
 {
-   return my->get_accounts( account_ids );
+   return my->get_account_from_string( name_or_id )->id;
 }
 
-vector<optional<account_object>> database_api_impl::get_accounts(const vector<account_id_type>& account_ids)const
+vector<optional<account_object>> database_api::get_accounts(const vector<std::string>& account_names_or_ids)const
 {
-   vector<optional<account_object>> result; result.reserve(account_ids.size());
-   std::transform(account_ids.begin(), account_ids.end(), std::back_inserter(result),
-                  [this](account_id_type id) -> optional<account_object> {
-      if(auto o = _db.find(id))
-      {
-         subscribe_to_item( id );
-         return *o;
-      }
-      return {};
+   return my->get_accounts( account_names_or_ids );
+}
+
+vector<optional<account_object>> database_api_impl::get_accounts(const vector<std::string>& account_names_or_ids)const
+{
+   vector<optional<account_object>> result; result.reserve(account_names_or_ids.size());
+   std::transform(account_names_or_ids.begin(), account_names_or_ids.end(), std::back_inserter(result),
+                  [this](std::string id_or_name) -> optional<account_object> {
+      const account_object *account = get_account_from_string(id_or_name, false);
+      if(account == nullptr)
+         return {};
+
+      subscribe_to_item( account->id );
+      return *account;
    });
    return result;
 }
@@ -758,16 +765,17 @@ optional<account_object> database_api_impl::get_account_by_name( string name )co
    return optional<account_object>();
 }
 
-vector<account_id_type> database_api::get_account_references( account_id_type account_id )const
+vector<account_id_type> database_api::get_account_references( const std::string account_id_or_name )const
 {
-   return my->get_account_references( account_id );
+   return my->get_account_references( account_id_or_name );
 }
 
-vector<account_id_type> database_api_impl::get_account_references( account_id_type account_id )const
+vector<account_id_type> database_api_impl::get_account_references( const std::string account_id_or_name )const
 {
    const auto& idx = _db.get_index_type<account_index>();
    const auto& aidx = dynamic_cast<const base_primary_index&>(idx);
    const auto& refs = aidx.get_secondary_index<graphene::chain::account_member_index>();
+   const account_id_type account_id = get_account_from_string(account_id_or_name)->id;
    auto itr = refs.account_to_account_memberships.find(account_id);
    vector<account_id_type> result;
 
@@ -836,13 +844,16 @@ uint64_t database_api_impl::get_account_count()const
 //                                                                  //
 //////////////////////////////////////////////////////////////////////
 
-vector<asset> database_api::get_account_balances(account_id_type id, const flat_set<asset_id_type>& assets)const
+vector<asset> database_api::get_account_balances(const std::string& account_name_or_id, const flat_set<asset_id_type>& assets)const
 {
-   return my->get_account_balances( id, assets );
+   return my->get_account_balances( account_name_or_id, assets );
 }
 
-vector<asset> database_api_impl::get_account_balances(account_id_type acnt, const flat_set<asset_id_type>& assets)const
+vector<asset> database_api_impl::get_account_balances( const std::string& account_name_or_id, 
+                                                       const flat_set<asset_id_type>& assets)const
 {
+   const account_object* account = get_account_from_string(account_name_or_id);
+   account_id_type acnt = account->id;
    vector<asset> result;
    if (assets.empty())
    {
@@ -865,15 +876,7 @@ vector<asset> database_api_impl::get_account_balances(account_id_type acnt, cons
 
 vector<asset> database_api::get_named_account_balances(const std::string& name, const flat_set<asset_id_type>& assets)const
 {
-   return my->get_named_account_balances( name, assets );
-}
-
-vector<asset> database_api_impl::get_named_account_balances(const std::string& name, const flat_set<asset_id_type>& assets) const
-{
-   const auto& accounts_by_name = _db.get_index_type<account_index>().indices().get<by_name>();
-   auto itr = accounts_by_name.find(name);
-   FC_ASSERT( itr != accounts_by_name.end() );
-   return get_account_balances(itr->get_id(), assets);
+   return my->get_account_balances( name, assets );
 }
 
 vector<balance_object> database_api::get_balance_objects( const vector<address>& addrs )const
@@ -923,15 +926,16 @@ vector<asset> database_api_impl::get_vested_balances( const vector<balance_id_ty
    } FC_CAPTURE_AND_RETHROW( (objs) )
 }
 
-vector<vesting_balance_object> database_api::get_vesting_balances( account_id_type account_id )const
+vector<vesting_balance_object> database_api::get_vesting_balances( const std::string account_id_or_name )const
 {
-   return my->get_vesting_balances( account_id );
+   return my->get_vesting_balances( account_id_or_name );
 }
 
-vector<vesting_balance_object> database_api_impl::get_vesting_balances( account_id_type account_id )const
+vector<vesting_balance_object> database_api_impl::get_vesting_balances( const std::string account_id_or_name )const
 {
    try
    {
+      const account_id_type account_id = get_account_from_string(account_id_or_name)->id;
       vector<vesting_balance_object> result;
       auto vesting_range = _db.get_index_type<vesting_balance_index>().indices().get<by_account>().equal_range(account_id);
       std::for_each(vesting_range.first, vesting_range.second,
@@ -941,7 +945,7 @@ vector<vesting_balance_object> database_api_impl::get_vesting_balances( account_
                     });
       return result;
    }
-   FC_CAPTURE_AND_RETHROW( (account_id) );
+   FC_CAPTURE_AND_RETHROW( (account_id_or_name) );
 }
 
 //////////////////////////////////////////////////////////////////////
@@ -1273,17 +1277,18 @@ vector<force_settlement_object> database_api_impl::get_settle_orders(asset_id_ty
                                           settle_index.upper_bound(mia.get_id()));
 }
 
-vector<call_order_object> database_api::get_margin_positions( const account_id_type& id )const
+vector<call_order_object> database_api::get_margin_positions( const std::string account_id_or_name )const
 {
-   return my->get_margin_positions( id );
+   return my->get_margin_positions( account_id_or_name );
 }
 
-vector<call_order_object> database_api_impl::get_margin_positions( const account_id_type& id )const
+vector<call_order_object> database_api_impl::get_margin_positions( const std::string account_id_or_name )const
 {
    try
    {
       const auto& idx = _db.get_index_type<call_order_index>();
       const auto& aidx = idx.indices().get<by_account>();
+      const account_id_type id = get_account_from_string(account_id_or_name)->id;
       auto start = aidx.lower_bound( boost::make_tuple( id, asset_id_type(0) ) );
       auto end = aidx.lower_bound( boost::make_tuple( id+1, asset_id_type(0) ) );
       vector<call_order_object> result;
@@ -1293,7 +1298,7 @@ vector<call_order_object> database_api_impl::get_margin_positions( const account
          ++start;
       }
       return result;
-   } FC_CAPTURE_AND_RETHROW( (id) )
+   } FC_CAPTURE_AND_RETHROW( (account_id_or_name) )
 }
 
 void database_api::subscribe_to_market(std::function<void(const variant&)> callback, asset_id_type a, asset_id_type b)
@@ -1540,9 +1545,10 @@ vector<optional<witness_object>> database_api::get_witnesses(const vector<witnes
    return my->get_witnesses( witness_ids );
 }
 
-vector<worker_object> database_api::get_workers_by_account(account_id_type account)const
+vector<worker_object> database_api::get_workers_by_account(const std::string account_id_or_name)const
 {
     const auto& idx = my->_db.get_index_type<worker_index>().indices().get<by_account>();
+    const account_id_type account = get_account_from_string(account_id_or_name)->id;
     auto itr = idx.find(account);
     vector<worker_object> result;
 
@@ -1568,14 +1574,15 @@ vector<optional<witness_object>> database_api_impl::get_witnesses(const vector<w
    return result;
 }
 
-fc::optional<witness_object> database_api::get_witness_by_account(account_id_type account)const
+fc::optional<witness_object> database_api::get_witness_by_account(const std::string account_id_or_name)const
 {
-   return my->get_witness_by_account( account );
+   return my->get_witness_by_account( account_id_or_name );
 }
 
-fc::optional<witness_object> database_api_impl::get_witness_by_account(account_id_type account) const
+fc::optional<witness_object> database_api_impl::get_witness_by_account(const std::string account_id_or_name) const
 {
    const auto& idx = _db.get_index_type<witness_index>().indices().get<by_account>();
+   const account_id_type account = get_account_from_string(account_id_or_name)->id;
    auto itr = idx.find(account);
    if( itr != idx.end() )
       return *itr;
@@ -1643,14 +1650,15 @@ vector<optional<committee_member_object>> database_api_impl::get_committee_membe
    return result;
 }
 
-fc::optional<committee_member_object> database_api::get_committee_member_by_account(account_id_type account)const
+fc::optional<committee_member_object> database_api::get_committee_member_by_account(const std::string account_id_or_name)const
 {
-   return my->get_committee_member_by_account( account );
+   return my->get_committee_member_by_account( account_id_or_name );
 }
 
-fc::optional<committee_member_object> database_api_impl::get_committee_member_by_account(account_id_type account) const
+fc::optional<committee_member_object> database_api_impl::get_committee_member_by_account(const std::string account_id_or_name) const
 {
    const auto& idx = _db.get_index_type<committee_member_index>().indices().get<by_account>();
+   const account_id_type account = get_account_from_string(account_id_or_name)->id;
    auto itr = idx.find(account);
    if( itr != idx.end() )
       return *itr;
@@ -1992,16 +2000,17 @@ vector< fc::variant > database_api_impl::get_required_fees( const vector<operati
 //                                                                  //
 //////////////////////////////////////////////////////////////////////
 
-vector<proposal_object> database_api::get_proposed_transactions( account_id_type id )const
+vector<proposal_object> database_api::get_proposed_transactions( const std::string account_id_or_name )const
 {
-   return my->get_proposed_transactions( id );
+   return my->get_proposed_transactions( account_id_or_name );
 }
 
 /** TODO: add secondary index that will accelerate this process */
-vector<proposal_object> database_api_impl::get_proposed_transactions( account_id_type id )const
+vector<proposal_object> database_api_impl::get_proposed_transactions( const std::string account_id_or_name )const
 {
    const auto& idx = _db.get_index_type<proposal_index>();
    vector<proposal_object> result;
+   const account_id_type id = get_account_from_string(account_id_or_name)->id;
 
    idx.inspect_all_objects( [&](const object& obj){
            const proposal_object& p = static_cast<const proposal_object&>(obj);
@@ -2116,6 +2125,26 @@ vector<tournament_object> database_api_impl::get_tournaments_by_state(tournament
    return result;
 }
 
+const account_object* database_api_impl::get_account_from_string( const std::string& name_or_id,
+                                                                  bool throw_if_not_found ) const
+{
+   // TODO cache the result to avoid repeatly fetching from db
+   FC_ASSERT( name_or_id.size() > 0);
+   const account_object* account = nullptr;
+   if (std::isdigit(name_or_id[0]))
+      account = _db.find(fc::variant(name_or_id, 1).as<account_id_type>(1));
+   else
+   {
+      const auto& idx = _db.get_index_type<account_index>().indices().get<by_name>();
+      auto itr = idx.find(name_or_id);
+      if (itr != idx.end())
+         account = &*itr;
+   }
+   if(throw_if_not_found)
+      FC_ASSERT( account, "no such account" );
+   return account;
+}
+
 vector<tournament_id_type> database_api::get_registered_tournaments(account_id_type account_filter, uint32_t limit) const
 {
    return my->get_registered_tournaments(account_filter, limit);
diff --git a/libraries/app/include/graphene/app/api.hpp b/libraries/app/include/graphene/app/api.hpp
index a263c4dd..126bc0b4 100644
--- a/libraries/app/include/graphene/app/api.hpp
+++ b/libraries/app/include/graphene/app/api.hpp
@@ -95,31 +95,32 @@ namespace graphene { namespace app {
    class history_api
    {
       public:
-         history_api(application& app):_app(app){}
+         history_api(application& app)
+               :_app(app), database_api( std::ref(*app.chain_database()), &(app.get_options())) {}
 
          /**
           * @brief Get operations relevant to the specificed account
-          * @param account The account whose history should be queried
+          * @param account_id_or_name The account ID or name whose history should be queried
           * @param stop ID of the earliest operation to retrieve
           * @param limit Maximum number of operations to retrieve (must not exceed 100)
           * @param start ID of the most recent operation to retrieve
           * @return A list of operations performed by account, ordered from most recent to oldest.
           */
-         vector<operation_history_object> get_account_history(account_id_type account,
+         vector<operation_history_object> get_account_history(const std::string account_id_or_name,
                                                               operation_history_id_type stop = operation_history_id_type(),
                                                               unsigned limit = 100,
                                                               operation_history_id_type start = operation_history_id_type())const;
 
          /**
           * @brief Get only asked operations relevant to the specified account
-          * @param account The account whose history should be queried
+          * @param account_id_or_name The account ID or name whose history should be queried
           * @param operation_id The ID of the operation we want to get operations in the account( 0 = transfer , 1 = limit order create, ...)
           * @param stop ID of the earliest operation to retrieve
           * @param limit Maximum number of operations to retrieve (must not exceed 100)
           * @param start ID of the most recent operation to retrieve
           * @return A list of operations performed by account, ordered from most recent to oldest.
           */
-         vector<operation_history_object> get_account_history_operations(account_id_type account,
+         vector<operation_history_object> get_account_history_operations(const std::string account_id_or_name,
                                                                          int operation_id,
                                                                          operation_history_id_type start = operation_history_id_type(),
                                                                          operation_history_id_type stop = operation_history_id_type(),
@@ -129,7 +130,7 @@ namespace graphene { namespace app {
           * @breif Get operations relevant to the specified account referenced
           * by an event numbering specific to the account. The current number of operations
           * for the account can be found in the account statistics (or use 0 for start).
-          * @param account The account whose history should be queried
+          * @param account_id_or_name The account ID or name whose history should be queried
           * @param stop Sequence number of earliest operation. 0 is default and will
           * query 'limit' number of operations.
           * @param limit Maximum number of operations to retrieve (must not exceed 100)
@@ -137,7 +138,7 @@ namespace graphene { namespace app {
           * 0 is default, which will start querying from the most recent operation.
           * @return A list of operations performed by account, ordered from most recent to oldest.
           */
-         vector<operation_history_object> get_relative_account_history( account_id_type account,
+         vector<operation_history_object> get_relative_account_history( const std::string account_id_or_name,
                                                                         uint32_t stop = 0,
                                                                         unsigned limit = 100,
                                                                         uint32_t start = 0) const;
@@ -149,6 +150,7 @@ namespace graphene { namespace app {
          flat_set<uint32_t> get_market_history_buckets()const;
       private:
            application& _app;
+           graphene::app::database_api database_api;
    };
 
    /**
diff --git a/libraries/app/include/graphene/app/database_api.hpp b/libraries/app/include/graphene/app/database_api.hpp
index a45e617e..f5cf3ac7 100644
--- a/libraries/app/include/graphene/app/database_api.hpp
+++ b/libraries/app/include/graphene/app/database_api.hpp
@@ -249,13 +249,21 @@ class database_api
       //////////////
 
       /**
-       * @brief Get a list of accounts by ID
+       * @brief Get account object from a name or ID
+       * @param name_or_id name or ID of the account
+       * @return Account ID
+       *
+       */
+      account_id_type get_account_id_from_string(const std::string& name_or_id)const;
+
+      /**
+       * @brief Get a list of accounts by ID or Name
        * @param account_ids IDs of the accounts to retrieve
        * @return The accounts corresponding to the provided IDs
        *
        * This function has semantics identical to @ref get_objects
        */
-      vector<optional<account_object>> get_accounts(const vector<account_id_type>& account_ids)const;
+      vector<optional<account_object>> get_accounts(const vector<std::string>& account_names_or_ids)const;
 
       /**
        * @brief Fetch all objects relevant to the specified accounts and subscribe to updates
@@ -275,7 +283,7 @@ class database_api
       /**
        *  @return all accounts that referr to the key or account id in their owner or active authorities.
        */
-      vector<account_id_type> get_account_references( account_id_type account_id )const;
+      vector<account_id_type> get_account_references( const std::string account_name_or_id )const;
 
       /**
        * @brief Get a list of accounts by name
@@ -304,7 +312,8 @@ class database_api
        * @param assets IDs of the assets to get balances of; if empty, get all assets account has a balance in
        * @return Balances of the account
        */
-      vector<asset> get_account_balances(account_id_type id, const flat_set<asset_id_type>& assets)const;
+      vector<asset> get_account_balances( const std::string& account_name_or_id, 
+                                          const flat_set<asset_id_type>& assets )const;
 
       /// Semantically equivalent to @ref get_account_balances, but takes a name instead of an ID.
       vector<asset> get_named_account_balances(const std::string& name, const flat_set<asset_id_type>& assets)const;
@@ -314,7 +323,7 @@ class database_api
 
       vector<asset> get_vested_balances( const vector<balance_id_type>& objs )const;
 
-      vector<vesting_balance_object> get_vesting_balances( account_id_type account_id )const;
+      vector<vesting_balance_object> get_vesting_balances( const std::string account_id_or_name )const;
 
       /**
        * @brief Get the total number of accounts registered with the blockchain
@@ -455,7 +464,7 @@ class database_api
       /**
        *  @return all open margin positions for a given account id.
        */
-      vector<call_order_object> get_margin_positions( const account_id_type& id )const;
+      vector<call_order_object> get_margin_positions( const std::string account_id_or_name )const;
 
       /**
        * @brief Request notification when the active orders in the market between two assets changes
@@ -533,7 +542,7 @@ class database_api
        * @param account The ID of the account whose witness should be retrieved
        * @return The witness object, or null if the account does not have a witness
        */
-      fc::optional<witness_object> get_witness_by_account(account_id_type account)const;
+      fc::optional<witness_object> get_witness_by_account(const std::string account_name_or_id)const;
 
       /**
        * @brief Get names and IDs for registered witnesses
@@ -563,10 +572,10 @@ class database_api
 
       /**
        * @brief Get the committee_member owned by a given account
-       * @param account The ID of the account whose committee_member should be retrieved
+       * @param account_id_or_name The ID or name of the account whose committee_member should be retrieved
        * @return The committee_member object, or null if the account does not have a committee_member
        */
-      fc::optional<committee_member_object> get_committee_member_by_account(account_id_type account)const;
+      fc::optional<committee_member_object> get_committee_member_by_account(const std::string account_id_or_name)const;
 
       /**
        * @brief Get names and IDs for registered committee_members
@@ -580,9 +589,11 @@ class database_api
       /// WORKERS
 
       /**
-       * Return the worker objects associated with this account.
+       * @brief Return the worker objects associated with this account.
+       * @param account_id_or_name The ID or name of the account whose worker should be retrieved
+       * @return The worker object or null if the account does not have a worker
        */
-      vector<worker_object> get_workers_by_account(account_id_type account)const;
+      vector<worker_object> get_workers_by_account(const std::string account_id_or_name)const;
 
 
       ///////////
@@ -648,7 +659,7 @@ class database_api
       /**
        *  @return the set of proposed transactions relevant to the specified account id.
        */
-      vector<proposal_object> get_proposed_transactions( account_id_type id )const;
+      vector<proposal_object> get_proposed_transactions( const std::string account_id_or_name )const;
 
       //////////////////////
       // Blinded balances //
@@ -734,6 +745,7 @@ FC_API(graphene::app::database_api,
    (is_public_key_registered)
 
    // Accounts
+   (get_account_id_from_string)
    (get_accounts)
    (get_full_accounts)
    (get_account_by_name)
diff --git a/libraries/wallet/wallet.cpp b/libraries/wallet/wallet.cpp
index c3c2fd02..3d881300 100644
--- a/libraries/wallet/wallet.cpp
+++ b/libraries/wallet/wallet.cpp
@@ -355,7 +355,8 @@ private:
          for( const fc::optional<graphene::chain::account_object>& optional_account : owner_account_objects )
             if (optional_account)
             {
-               fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(optional_account->id);
+               std::string account_id = account_id_to_string(optional_account->id);
+               fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(account_id);
                if (witness_obj)
                   claim_registered_witness(optional_account->name);
             }
@@ -729,9 +730,17 @@ public:
    {
       return _remote_db->get_dynamic_global_properties();
    }
+   std::string account_id_to_string(account_id_type id) const
+   {
+      std::string account_id = fc::to_string(id.space_id)
+                               + "." + fc::to_string(id.type_id)
+                               + "." + fc::to_string(id.instance.value);
+      return account_id;
+   }
    account_object get_account(account_id_type id) const
    {
-      auto rec = _remote_db->get_accounts({id}).front();
+      std::string account_id = account_id_to_string(id);
+      auto rec = _remote_db->get_accounts({account_id}).front();
       FC_ASSERT(rec);
       return *rec;
    }
@@ -1018,7 +1027,7 @@ public:
             ("chain_id", _chain_id) );
 
       size_t account_pagination = 100;
-      vector< account_id_type > account_ids_to_send;
+      vector< std::string > account_ids_to_send;
       size_t n = _wallet.my_accounts.size();
       account_ids_to_send.reserve( std::min( account_pagination, n ) );
       auto it = _wallet.my_accounts.begin();
@@ -1033,7 +1042,8 @@ public:
          {
             assert( it != _wallet.my_accounts.end() );
             old_accounts.push_back( *it );
-            account_ids_to_send.push_back( old_accounts.back().id );
+            std::string account_id = account_id_to_string(old_accounts.back().id);
+            account_ids_to_send.push_back( account_id );
             ++it;
          }
          std::vector< optional< account_object > > accounts = _remote_db->get_accounts(account_ids_to_send);
@@ -1733,7 +1743,7 @@ public:
       committee_member_create_operation committee_member_create_op;
       committee_member_create_op.committee_member_account = get_account_id(owner_account);
       committee_member_create_op.url = url;
-      if (_remote_db->get_committee_member_by_account(committee_member_create_op.committee_member_account))
+      if (_remote_db->get_committee_member_by_account(owner_account))
          FC_THROW("Account ${owner_account} is already a committee_member", ("owner_account", owner_account));
 
       signed_transaction tx;
@@ -1763,7 +1773,7 @@ public:
             // then maybe it's the owner account
             try
             {
-               account_id_type owner_account_id = get_account_id(owner_account);
+               std::string owner_account_id = account_id_to_string(get_account_id(owner_account));
                fc::optional<witness_object> witness = _remote_db->get_witness_by_account(owner_account_id);
                if (witness)
                   return *witness;
@@ -1799,7 +1809,7 @@ public:
             // then maybe it's the owner account
             try
             {
-               account_id_type owner_account_id = get_account_id(owner_account);
+               std::string owner_account_id = account_id_to_string(get_account_id(owner_account));
                fc::optional<witness_object> witness = _remote_db->get_witness_by_account(owner_account_id);
                if (witness)
                   return true;
@@ -1834,8 +1844,7 @@ public:
             // then maybe it's the owner account
             try
             {
-               account_id_type owner_account_id = get_account_id(owner_account);
-               fc::optional<committee_member_object> committee_member = _remote_db->get_committee_member_by_account(owner_account_id);
+               fc::optional<committee_member_object> committee_member = _remote_db->get_committee_member_by_account(owner_account);
                if (committee_member)
                   return *committee_member;
                else
@@ -1871,7 +1880,7 @@ public:
       witness_create_op.initial_secret = enc.result();
 
 
-      if (_remote_db->get_witness_by_account(witness_create_op.witness_account))
+      if (_remote_db->get_witness_by_account(account_id_to_string(witness_create_op.witness_account)))
          FC_THROW("Account ${owner_account} is already a witness", ("owner_account", owner_account));
 
       signed_transaction tx;
@@ -2037,12 +2046,7 @@ public:
          return result;
       }
 
-      // try casting to avoid a round-trip if we were given an account ID
-      fc::optional<account_id_type> acct_id = maybe_id<account_id_type>( account_name );
-      if( !acct_id )
-         acct_id = get_account( account_name ).id;
-
-      vector< vesting_balance_object > vbos = _remote_db->get_vesting_balances( *acct_id );
+      vector< vesting_balance_object > vbos = _remote_db->get_vesting_balances( account_name );
       if( vbos.size() == 0 )
          return result;
 
@@ -2110,12 +2114,7 @@ public:
       fc::optional<vesting_balance_id_type> vbid = maybe_id<vesting_balance_id_type>(account_name);
       if( !vbid )
       {
-         //Changes done to retrive user account/witness account based on account name
-         fc::optional<account_id_type> acct_id = maybe_id<account_id_type>( account_name );
-         if( !acct_id )
-            acct_id = get_account( account_name ).id;
-
-         vbos = _remote_db->get_vesting_balances( *acct_id );
+         vbos = _remote_db->get_vesting_balances( account_name );
          if( vbos.size() == 0 ) 
             FC_THROW("Account ${account} has no core TOKEN vested and thus its not allowed to withdraw.", ("account", account_name));
       }
@@ -2188,8 +2187,7 @@ public:
       }
 
       account_object voting_account_object = get_account(voting_account);
-      account_id_type committee_member_owner_account_id = get_account_id(committee_member);
-      fc::optional<committee_member_object> committee_member_obj = _remote_db->get_committee_member_by_account(committee_member_owner_account_id);
+      fc::optional<committee_member_object> committee_member_obj = _remote_db->get_committee_member_by_account(committee_member);
       if (!committee_member_obj)
          FC_THROW("Account ${committee_member} is not registered as a committee_member", ("committee_member", committee_member));
 
@@ -2253,9 +2251,8 @@ public:
       }
 
       account_object voting_account_object = get_account(voting_account);
-      account_id_type witness_owner_account_id = get_account_id(witness);
       
-      fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(witness_owner_account_id);
+      fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(witness);
       if (!witness_obj)
          FC_THROW("Account ${witness} is not registered as a witness", ("witness", witness));
 
@@ -2311,8 +2308,7 @@ public:
       account_object voting_account_object = get_account(voting_account);
       for (const std::string& witness : witnesses_to_approve)
       {
-         account_id_type witness_owner_account_id = get_account_id(witness);
-         fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(witness_owner_account_id);
+         fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(witness);
          if (!witness_obj)
             FC_THROW("Account ${witness} is not registered as a witness", ("witness", witness));
          auto insert_result = voting_account_object.options.votes.insert(witness_obj->vote_id);
@@ -2321,8 +2317,7 @@ public:
       }
       for (const std::string& witness : witnesses_to_reject)
       {
-         account_id_type witness_owner_account_id = get_account_id(witness);
-         fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(witness_owner_account_id);
+         fc::optional<witness_object> witness_obj = _remote_db->get_witness_by_account(witness);
          if (!witness_obj)
             FC_THROW("Account ${witness} is not registered as a witness", ("witness", witness));
          unsigned votes_removed = voting_account_object.options.votes.erase(witness_obj->vote_id);
@@ -3706,8 +3701,8 @@ map<string,account_id_type> wallet_api::list_accounts(const string& lowerbound,
 vector<asset> wallet_api::list_account_balances(const string& id)
 {
    if( auto real_id = detail::maybe_id<account_id_type>(id) )
-      return my->_remote_db->get_account_balances(*real_id, flat_set<asset_id_type>());
-   return my->_remote_db->get_account_balances(get_account(id).id, flat_set<asset_id_type>());
+      return my->_remote_db->get_account_balances(id, flat_set<asset_id_type>());
+   return my->_remote_db->get_account_balances(id, flat_set<asset_id_type>());
 }
 
 vector<asset_object> wallet_api::list_assets(const string& lowerbound, uint32_t limit)const
@@ -3799,11 +3794,10 @@ vector<operation_detail> wallet_api::get_relative_account_history(string name, u
    FC_ASSERT( start > 0 || limit <= 100 );
    
    vector<operation_detail> result;
-   auto account_id = get_account(name).get_id();
 
    while( limit > 0 )
    {
-      vector <operation_history_object> current = my->_remote_hist->get_relative_account_history(account_id, stop, std::min<uint32_t>(100, limit), start);
+      vector <operation_history_object> current = my->_remote_hist->get_relative_account_history(name, stop, std::min<uint32_t>(100, limit), start);
       for (auto &o : current) {
          std::stringstream ss;
          auto memo = o.op.visit(detail::operation_printer(ss, *my, o.result));
diff --git a/tests/tests/history_api_tests.cpp b/tests/tests/history_api_tests.cpp
index fcaeef5b..4edccce5 100644
--- a/tests/tests/history_api_tests.cpp
+++ b/tests/tests/history_api_tests.cpp
@@ -55,25 +55,25 @@ BOOST_AUTO_TEST_CASE(get_account_history) {
       int account_create_op_id = operation::tag<account_create_operation>::value;
 
       //account_id_type() did 3 ops and includes id0
-      vector<operation_history_object> histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 100, operation_history_id_type());
+      vector<operation_history_object> histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 100, operation_history_id_type());
 
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 0u);
       BOOST_CHECK_EQUAL(histories[2].op.which(), asset_create_op_id);
 
       // 1 account_create op larger than id1
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 100, operation_history_id_type());
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 100, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK(histories[0].id.instance() != 0);
       BOOST_CHECK_EQUAL(histories[0].op.which(), account_create_op_id);
 
       // Limit 2 returns 2 result
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 2, operation_history_id_type());
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 2, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK(histories[1].id.instance() != 0);
       BOOST_CHECK_EQUAL(histories[1].op.which(), account_create_op_id);
       // bob has 1 op
-      histories = hist_api.get_account_history(bob_acc.get_id(), operation_history_id_type(), 100, operation_history_id_type());
+      histories = hist_api.get_account_history("bob", operation_history_id_type(), 100, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].op.which(), account_create_op_id);
    } FC_LOG_AND_RETHROW()
@@ -84,7 +84,7 @@ BOOST_AUTO_TEST_CASE(zero_id_object) {
         graphene::app::history_api hist_api(app);
 
         // no history at all in the chain
-        vector<operation_history_object> histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(0), 4, operation_history_id_type(0));
+        vector<operation_history_object> histories = hist_api.get_account_history("committee-account", operation_history_id_type(0), 4, operation_history_id_type(0));
         BOOST_CHECK_EQUAL(histories.size(), 0u);
 
         create_bitasset("USD", account_id_type()); // create op 0
@@ -92,7 +92,7 @@ BOOST_AUTO_TEST_CASE(zero_id_object) {
         fc::usleep(fc::milliseconds(2000));
 
         // what if the account only has one history entry and it is 0?
-        histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type());
+        histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type());
         BOOST_CHECK_EQUAL(histories.size(), 1u);
         BOOST_CHECK_EQUAL(histories[0].id.instance(), 0u);
     } FC_LOG_AND_RETHROW()
@@ -107,13 +107,13 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       // account_id_type() and dan share operation id 1(account create) - share can be also in id 0
 
       // no history at all in the chain
-      vector<operation_history_object> histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(0), 4, operation_history_id_type(0));
+      vector<operation_history_object> histories = hist_api.get_account_history("committee-account", operation_history_id_type(0), 4, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       create_bitasset("USD", account_id_type()); // create op 0
       generate_block();
       // what if the account only has one history entry and it is 0?
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type());
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 0u);
 
@@ -128,7 +128,7 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       generate_block();
 
       // f(A, 0, 4, 9) = { 5, 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(9));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(9));
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
@@ -136,7 +136,7 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 0u);
 
       // f(A, 0, 4, 6) = { 5, 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(6));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(6));
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
@@ -144,7 +144,7 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 0u);
 
       // f(A, 0, 4, 5) = { 5, 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(5));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(5));
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
@@ -152,33 +152,33 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 0u);
 
       // f(A, 0, 4, 4) = { 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(4));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(4));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 0u);
 
       // f(A, 0, 4, 3) = { 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(3));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(3));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 0u);
 
       // f(A, 0, 4, 2) = { 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(2));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 0u);
 
       // f(A, 0, 4, 1) = { 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type(1));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type(1));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 0u);
 
       // f(A, 0, 4, 0) = { 5, 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 4, operation_history_id_type());
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 4, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
@@ -186,103 +186,103 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 0u);
 
       // f(A, 1, 5, 9) = { 5, 3 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(9));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(9));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
 
       // f(A, 1, 5, 6) = { 5, 3 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(6));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(6));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
 
       // f(A, 1, 5, 5) = { 5, 3 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(5));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(5));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
 
       // f(A, 1, 5, 4) = { 3 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(4));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(4));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
 
       // f(A, 1, 5, 3) = { 3 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(3));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(3));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
 
       // f(A, 1, 5, 2) = { }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(2));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // f(A, 1, 5, 1) = { }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(1));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(1));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // f(A, 1, 5, 0) = { 5, 3 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 5, operation_history_id_type(0));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 5, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
 
       // f(A, 0, 3, 9) = { 5, 3, 1 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(9));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(9));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 1u);
 
       // f(A, 0, 3, 6) = { 5, 3, 1 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(6));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(6));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 1u);
 
       // f(A, 0, 3, 5) = { 5, 3, 1 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(5));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(5));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 1u);
 
       // f(A, 0, 3, 4) = { 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(4));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(4));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 0u);
 
       // f(A, 0, 3, 3) = { 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(3));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(3));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 0u);
 
       // f(A, 0, 3, 2) = { 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(2));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 0u);
 
       // f(A, 0, 3, 1) = { 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type(1));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type(1));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 1u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 0u);
 
       // f(A, 0, 3, 0) = { 5, 3, 1 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(), 3, operation_history_id_type());
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(), 3, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 5u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 1u);
 
       // f(B, 0, 4, 9) = { 6, 4, 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(9));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(9));
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
@@ -290,7 +290,7 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 1u);
 
       // f(B, 0, 4, 6) = { 6, 4, 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(6));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(6));
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
@@ -298,38 +298,38 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 1u);
 
       // f(B, 0, 4, 5) = { 4, 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(5));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(5));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 4u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 2u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 1u);
 
       // f(B, 0, 4, 4) = { 4, 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(4));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(4));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 4u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 2u);
       BOOST_CHECK_EQUAL(histories[2].id.instance(), 1u);
 
       // f(B, 0, 4, 3) = { 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(3));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(3));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 2u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 1u);
 
       // f(B, 0, 4, 2) = { 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(2));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 2u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 1u);
 
       // f(B, 0, 4, 1) = { 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type(1));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type(1));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 1u);
 
       // f(B, 0, 4, 0) = { 6, 4, 2, 1 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(), 4, operation_history_id_type());
+      histories = hist_api.get_account_history("dan", operation_history_id_type(), 4, operation_history_id_type());
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
@@ -337,49 +337,49 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 1u);
 
       // f(B, 2, 4, 9) = { 6, 4 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(9));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(9));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
 
       // f(B, 2, 4, 6) = { 6, 4 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(6));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(6));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
 
       // f(B, 2, 4, 5) = { 4 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(5));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(5));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 4u);
 
       // f(B, 2, 4, 4) = { 4 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(4));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(4));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 4u);
 
       // f(B, 2, 4, 3) = { }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(3));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(3));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // f(B, 2, 4, 2) = { }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(2));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // f(B, 2, 4, 1) = { }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(1));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(1));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // f(B, 2, 4, 0) = { 6, 4 }
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(2), 4, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(2), 4, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
 
       // 0 limits
-      histories = hist_api.get_account_history(dan.get_id(), operation_history_id_type(0), 0, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(0), 0, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(3), 0, operation_history_id_type(9));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(3), 0, operation_history_id_type(9));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // create a new account C = alice { 7 }
@@ -388,16 +388,16 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       generate_block();
 
       // f(C, 0, 4, 10) = { 7 }
-      histories = hist_api.get_account_history(alice.get_id(), operation_history_id_type(0), 4, operation_history_id_type(10));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(0), 4, operation_history_id_type(10));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 7u);
 
       // f(C, 8, 4, 10) = { }
-      histories = hist_api.get_account_history(alice.get_id(), operation_history_id_type(8), 4, operation_history_id_type(10));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(8), 4, operation_history_id_type(10));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // f(A, 0, 10, 0) = { 7, 5, 3, 1, 0 }
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 5u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 7u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 5u);
@@ -432,23 +432,23 @@ BOOST_AUTO_TEST_CASE(track_account) {
 
       // anything against account_id_type() should be {}
       vector<operation_history_object> histories = 
-      hist_api.get_account_history(account_id_type(), operation_history_id_type(0), 10, operation_history_id_type(0));
+      hist_api.get_account_history("committee-account", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(1), 1, operation_history_id_type(2));
+      histories = hist_api.get_account_history("committee-account", operation_history_id_type(1), 1, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // anything against alice should be {}
-      histories = hist_api.get_account_history(alice_id, operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(alice_id, operation_history_id_type(1), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(1), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(alice_id, operation_history_id_type(1), 1, operation_history_id_type(2));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(1), 1, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // dan should have history
-      histories = hist_api.get_account_history(dan_id, operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 4u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
@@ -459,7 +459,7 @@ BOOST_AUTO_TEST_CASE(track_account) {
 
       generate_block( ~database::skip_fork_db );
 
-      histories = hist_api.get_account_history(dan_id, operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
@@ -473,7 +473,7 @@ BOOST_AUTO_TEST_CASE(track_account) {
 
       generate_block();
 
-      histories = hist_api.get_account_history(dan_id, operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 3u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 6u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 4u);
@@ -508,7 +508,7 @@ BOOST_AUTO_TEST_CASE(track_account2) {
       generate_block();
 
       // all account_id_type() should have 4 ops {4,2,1,0}
-      vector<operation_history_object> histories = hist_api.get_account_history(account_id_type(), operation_history_id_type(0), 10, operation_history_id_type(0));
+      vector<operation_history_object> histories = hist_api.get_account_history("committee-account", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 4u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 4u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 2u);
@@ -516,27 +516,27 @@ BOOST_AUTO_TEST_CASE(track_account2) {
       BOOST_CHECK_EQUAL(histories[3].id.instance(), 0u);
 
       // all alice account should have 2 ops {3, 0}
-      histories = hist_api.get_account_history(alice_id, operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 0u);
 
       // alice first op should be {0}
-      histories = hist_api.get_account_history(alice_id, operation_history_id_type(0), 1, operation_history_id_type(1));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(0), 1, operation_history_id_type(1));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 0u);
 
       // alice second op should be {3}
-      histories = hist_api.get_account_history(alice_id, operation_history_id_type(1), 1, operation_history_id_type(0));
+      histories = hist_api.get_account_history("alice", operation_history_id_type(1), 1, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 3u);
 
       // anything against dan should be {}
-      histories = hist_api.get_account_history(dan_id, operation_history_id_type(0), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(0), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(dan_id, operation_history_id_type(1), 10, operation_history_id_type(0));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(1), 10, operation_history_id_type(0));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
-      histories = hist_api.get_account_history(dan_id, operation_history_id_type(1), 1, operation_history_id_type(2));
+      histories = hist_api.get_account_history("dan", operation_history_id_type(1), 1, operation_history_id_type(2));
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
    } catch (fc::exception &e) {
@@ -553,7 +553,7 @@ BOOST_AUTO_TEST_CASE(get_account_history_operations) {
       int account_create_op_id = operation::tag<account_create_operation>::value;
 
       // no asset_create operation on account_id_type() should not throw any exception
-      vector<operation_history_object> histories = hist_api.get_account_history_operations(account_id_type(), asset_create_op_id, operation_history_id_type(), operation_history_id_type(), 100);
+      vector<operation_history_object> histories = hist_api.get_account_history_operations("committee-account", asset_create_op_id, operation_history_id_type(), operation_history_id_type(), 100);
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       //account_id_type() do 3 ops
@@ -565,27 +565,27 @@ BOOST_AUTO_TEST_CASE(get_account_history_operations) {
       fc::usleep(fc::milliseconds(2000));
 
       //account_id_type() did 1 asset_create op
-      histories = hist_api.get_account_history_operations(account_id_type(), asset_create_op_id, operation_history_id_type(), operation_history_id_type(), 100);
+      histories = hist_api.get_account_history_operations("committee-account", asset_create_op_id, operation_history_id_type(), operation_history_id_type(), 100);
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].id.instance(), 0u);
       BOOST_CHECK_EQUAL(histories[0].op.which(), asset_create_op_id);
 
       //account_id_type() did 2 account_create ops
-      histories = hist_api.get_account_history_operations(account_id_type(), account_create_op_id, operation_history_id_type(), operation_history_id_type(), 100);
+      histories = hist_api.get_account_history_operations("committee-account", account_create_op_id, operation_history_id_type(), operation_history_id_type(), 100);
       BOOST_CHECK_EQUAL(histories.size(), 2u);
       BOOST_CHECK_EQUAL(histories[0].op.which(), account_create_op_id);
 
       // No asset_create op larger than id1
-      histories = hist_api.get_account_history_operations(account_id_type(), asset_create_op_id, operation_history_id_type(), operation_history_id_type(1), 100);
+      histories = hist_api.get_account_history_operations("committee-account", asset_create_op_id, operation_history_id_type(), operation_history_id_type(1), 100);
       BOOST_CHECK_EQUAL(histories.size(), 0u);
 
       // Limit 1 returns 1 result
-      histories = hist_api.get_account_history_operations(account_id_type(), account_create_op_id, operation_history_id_type(),operation_history_id_type(), 1);
+      histories = hist_api.get_account_history_operations("committee-account", account_create_op_id, operation_history_id_type(),operation_history_id_type(), 1);
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].op.which(), account_create_op_id);
 
       // alice has 1 op
-      histories = hist_api.get_account_history_operations(get_account("alice").id, account_create_op_id, operation_history_id_type(),operation_history_id_type(), 100);
+      histories = hist_api.get_account_history_operations("alice", account_create_op_id, operation_history_id_type(),operation_history_id_type(), 100);
       BOOST_CHECK_EQUAL(histories.size(), 1u);
       BOOST_CHECK_EQUAL(histories[0].op.which(), account_create_op_id);
 
diff --git a/tests/tests/voting_tests.cpp b/tests/tests/voting_tests.cpp
index 71c5e935..79f80e1f 100644
--- a/tests/tests/voting_tests.cpp
+++ b/tests/tests/voting_tests.cpp
@@ -319,7 +319,7 @@ BOOST_AUTO_TEST_CASE(track_votes_witnesses_enabled)
       INVOKE(put_my_witnesses);
 
       const account_id_type witness1_id= get_account("witness1").id;
-      auto witness1_object = db_api1.get_witness_by_account(witness1_id);
+      auto witness1_object = db_api1.get_witness_by_account(witness1_id(db).name);
       BOOST_CHECK_EQUAL(witness1_object->total_votes, 111);
 
    } FC_LOG_AND_RETHROW()
@@ -334,7 +334,7 @@ BOOST_AUTO_TEST_CASE(track_votes_witnesses_disabled)
       INVOKE(put_my_witnesses);
 
       const account_id_type witness1_id= get_account("witness1").id;
-      auto witness1_object = db_api1.get_witness_by_account(witness1_id);
+      auto witness1_object = db_api1.get_witness_by_account(witness1_id(db).name);
       BOOST_CHECK_EQUAL(witness1_object->total_votes, 0);
 
    } FC_LOG_AND_RETHROW()
@@ -498,7 +498,7 @@ BOOST_AUTO_TEST_CASE(track_votes_committee_enabled)
       INVOKE(put_my_committee_members);
 
       const account_id_type committee1_id= get_account("committee1").id;
-      auto committee1_object = db_api1.get_committee_member_by_account(committee1_id);
+      auto committee1_object = db_api1.get_committee_member_by_account(committee1_id(db).name);
       BOOST_CHECK_EQUAL(committee1_object->total_votes, 111);
 
    } FC_LOG_AND_RETHROW()
@@ -513,7 +513,7 @@ BOOST_AUTO_TEST_CASE(track_votes_committee_disabled)
       INVOKE(put_my_committee_members);
 
       const account_id_type committee1_id= get_account("committee1").id;
-      auto committee1_object = db_api1.get_committee_member_by_account(committee1_id);
+      auto committee1_object = db_api1.get_committee_member_by_account(committee1_id(db).name);
       BOOST_CHECK_EQUAL(committee1_object->total_votes, 0);
 
    } FC_LOG_AND_RETHROW()