diff --git a/docs b/docs
index 94ec061b..71ed2984 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit 94ec061b91edbe9d1ebae576e641f921998428c8
+Subproject commit 71ed2984b71d57cab13cdf12074cff150edc1d3d
diff --git a/libraries/app/api.cpp b/libraries/app/api.cpp
index 6a7a2d15..014b7385 100644
--- a/libraries/app/api.cpp
+++ b/libraries/app/api.cpp
@@ -445,7 +445,17 @@ namespace graphene { namespace app {
        }
        return result;
     }
-    vector<bucket_object> history_api::get_market_history( asset_id_type a, asset_id_type b, uint32_t bucket_seconds, fc::time_point_sec start, fc::time_point_sec end )const
+
+
+    flat_set<uint32_t> history_api::get_market_history_buckets()const
+    {
+       auto hist = _app.get_plugin<market_history_plugin>( "market_history" );
+       FC_ASSERT( hist );
+       return hist->tracked_buckets();
+    }
+
+    vector<bucket_object> history_api::get_market_history( asset_id_type a, asset_id_type b, 
+                                                           uint32_t bucket_seconds, fc::time_point_sec start, fc::time_point_sec end )const
     { try {
        FC_ASSERT(_app.chain_database());
        const auto& db = *_app.chain_database();
diff --git a/libraries/app/include/graphene/app/api.hpp b/libraries/app/include/graphene/app/api.hpp
index b6a7efbe..21fbc2e7 100644
--- a/libraries/app/include/graphene/app/api.hpp
+++ b/libraries/app/include/graphene/app/api.hpp
@@ -258,25 +258,27 @@ namespace graphene { namespace app {
     */
    class history_api
    {
-   public:
-      history_api(application& app):_app(app){}
+      public:
+         history_api(application& app):_app(app){}
 
-      /**
-       * @brief Get operations relevant to the specificed account
-       * @param account The account 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,
-                                                           operation_history_id_type stop = operation_history_id_type(),
-                                                           int limit = 100,
-                                                           operation_history_id_type start = operation_history_id_type())const;
+         /**
+          * @brief Get operations relevant to the specificed account
+          * @param account The account 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,
+                                                              operation_history_id_type stop = operation_history_id_type(),
+                                                              int limit = 100,
+                                                              operation_history_id_type start = operation_history_id_type())const;
 
-      vector<bucket_object> get_market_history( asset_id_type a, asset_id_type b, uint32_t bucket_seconds, fc::time_point_sec start, fc::time_point_sec end )const;
-   private:
-        application&              _app;
+         vector<bucket_object> get_market_history( asset_id_type a, asset_id_type b, uint32_t bucket_seconds, 
+                                                   fc::time_point_sec start, fc::time_point_sec end )const;
+         flat_set<uint32_t>    get_market_history_buckets()const;
+      private:
+           application&              _app;
    };
 
    /**
@@ -377,7 +379,7 @@ FC_API(graphene::app::database_api,
        (get_transaction_hex)
        (get_proposed_transactions)
      )
-FC_API(graphene::app::history_api, (get_account_history)(get_market_history))
+FC_API(graphene::app::history_api, (get_account_history)(get_market_history)(get_market_history_buckets))
 FC_API(graphene::app::network_api, (broadcast_transaction)(add_node)(get_connected_peers))
 FC_API(graphene::app::login_api,
        (login)
diff --git a/libraries/fc b/libraries/fc
index 701b9ac0..c09035db 160000
--- a/libraries/fc
+++ b/libraries/fc
@@ -1 +1 @@
-Subproject commit 701b9ac00c46234ee7cc6385027f5942590debc9
+Subproject commit c09035dba0cdab7fcb2c11bf81aaeaffaa981f66
diff --git a/libraries/plugins/market_history/include/graphene/market_history/market_history_plugin.hpp b/libraries/plugins/market_history/include/graphene/market_history/market_history_plugin.hpp
index 1453ca6c..79484194 100644
--- a/libraries/plugins/market_history/include/graphene/market_history/market_history_plugin.hpp
+++ b/libraries/plugins/market_history/include/graphene/market_history/market_history_plugin.hpp
@@ -117,8 +117,7 @@ class market_history_plugin : public graphene::app::plugin
          const boost::program_options::variables_map& options) override;
       virtual void plugin_startup() override;
 
-      vector<bucket_object> get_history( const bucket_key& start, const bucket_key& end )const;
-      const flat_set<uint32_t>&    tracked_buckets()const;
+      const flat_set<uint32_t>&   tracked_buckets()const;
 
    private:
       friend class detail::market_history_plugin_impl;