diff --git a/accountant/api/views/accounts.py b/accountant/api/views/accounts.py
index d3b0508..84b803f 100644
--- a/accountant/api/views/accounts.py
+++ b/accountant/api/views/accounts.py
@@ -25,6 +25,7 @@ from accountant import db
 from .. import api_api
 
 from ..models.accounts import Account
+from ..models.operations import Operation
 
 from ..fields import Object
 
@@ -150,3 +151,47 @@ class AccountResource(Resource):
 
 api_api.add_resource(AccountListResource, '/accounts')
 api_api.add_resource(AccountResource, '/accounts/<int:account_id>')
+
+
+range_parser = reqparse.RequestParser()
+range_parser.add_argument('account', type=int)
+range_parser.add_argument('begin', type=lambda a: dateutil.parser.parse(a))
+range_parser.add_argument('end', type=lambda a: dateutil.parser.parse(a))
+
+
+category_resource_fields = {
+    'category': fields.String,
+    'expenses': fields.Float,
+    'revenues': fields.Float
+}
+
+
+class CategoriesResource(Resource):
+    @requires_auth
+    @marshal_with_field(fields.List(Object(category_resource_fields)))
+    def get(self):
+        kwargs = range_parser.parse_args()
+
+        return Operation.get_categories_for_range(**kwargs).all()
+
+
+ohlc_resource_fields = {
+    'operation_date': fields.DateTime(dt_format='iso8601'),
+    'open': fields.Float,
+    'high': fields.Float,
+    'low': fields.Float,
+    'close': fields.Float
+}
+
+
+class SoldsResource(Resource):
+    @requires_auth
+    @marshal_with_field(fields.List(Object(ohlc_resource_fields)))
+    def get(self):
+        kwargs = range_parser.parse_args()
+
+        return Operation.get_ohlc_per_day_for_range(**kwargs).all()
+
+
+api_api.add_resource(CategoriesResource, "/categories")
+api_api.add_resource(SoldsResource, "/solds")
diff --git a/accountant/api/views/operations.py b/accountant/api/views/operations.py
index 8f023c8..591af10 100644
--- a/accountant/api/views/operations.py
+++ b/accountant/api/views/operations.py
@@ -136,41 +136,5 @@ class OperationResource(Resource):
         return operation
 
 
-category_resource_fields = {
-    'category': fields.String,
-    'expenses': fields.Float,
-    'revenues': fields.Float
-}
-
-
-class CategoriesResource(Resource):
-    @requires_auth
-    @marshal_with_field(fields.List(Object(category_resource_fields)))
-    def get(self):
-        kwargs = range_parser.parse_args()
-
-        return Operation.get_categories_for_range(**kwargs).all()
-
-
-ohlc_resource_fields = {
-    'operation_date': fields.DateTime(dt_format='iso8601'),
-    'open': fields.Float,
-    'high': fields.Float,
-    'low': fields.Float,
-    'close': fields.Float
-}
-
-
-class SoldsResource(Resource):
-    @requires_auth
-    @marshal_with_field(fields.List(Object(ohlc_resource_fields)))
-    def get(self):
-        kwargs = range_parser.parse_args()
-
-        return Operation.get_ohlc_per_day_for_range(**kwargs).all()
-
-
 api_api.add_resource(OperationListResource, "/operations")
 api_api.add_resource(OperationResource, "/operations/<int:operation_id>")
-api_api.add_resource(CategoriesResource, "/categories")
-api_api.add_resource(SoldsResource, "/solds")