diff --git a/bin/lib/Correlate_object.py b/bin/lib/Correlate_object.py
index aa7ce61c..8bbc52e8 100755
--- a/bin/lib/Correlate_object.py
+++ b/bin/lib/Correlate_object.py
@@ -31,6 +31,12 @@ def is_valid_object_type(object_type):
     else:
         return False
 
+def check_correlation_object(object):
+    if object in get_all_correlation_objects():
+        return True
+    else:
+        return False
+
 def is_valid_object_subtype(object_type, object_subtype):
     if object_type == 'pgp':
         return Pgp.pgp.is_valid_obj_subtype(object_subtype)
@@ -462,7 +468,7 @@ def sanitise_correlation_names(correlation_names):
 
 def sanitise_correlation_objects(correlation_objects):
     '''
-    correlation_objects ex = 'domain,decoded'
+    correlation_objects ex = 'domain,paste'
     '''
     all_correlation_objects = get_all_correlation_objects()
     if correlation_objects is None:
@@ -478,6 +484,11 @@ def sanitise_correlation_objects(correlation_objects):
             return all_correlation_objects
 
 ######## API EXPOSED ########
+def api_check_correlation_objects(l_object):
+    for object in l_object:
+        if not check_correlation_object(object):
+            return ({"error": f"Invalid Object: {object}"}, 400)
+
 def sanitize_object_type(object_type):
     if not is_valid_object_type(object_type):
         return ({'status': 'error', 'reason': 'Incorrect object_type'}, 400)
diff --git a/bin/packages/Correlation.py b/bin/packages/Correlation.py
index bbb33cc6..463669ec 100755
--- a/bin/packages/Correlation.py
+++ b/bin/packages/Correlation.py
@@ -442,7 +442,10 @@ class Correlation(object):
 
         return True
 
-######## API EXPOSED ########
+    ######## API EXPOSED ########
+    def api_check_objs_type(self, l_types):
+        for obj_type in l_types:
+            if not self.is_valid_obj_subtype(obj_type):
+                return ({"error": f"Invalid Type: {obj_type}"}, 400)
 
-
-########  ########
+    ########  ########
diff --git a/tools/extract_cryptocurrency.py b/tools/extract_cryptocurrency.py
index 01bfb58f..da5f4d00 100755
--- a/tools/extract_cryptocurrency.py
+++ b/tools/extract_cryptocurrency.py
@@ -39,7 +39,8 @@ def get_object_correlation_json(correlation_id, subtype, max_nodes):
 
     # ALL correlations
     correlation_names = Correlate_object.sanitise_correlation_names('')
-    correlation_objects = Correlate_object.sanitise_correlation_objects('')
+    #correlation_objects = Correlate_object.sanitise_correlation_objects('')
+    correlation_objects = ['domain']
 
     res = Correlate_object.get_graph_node_object_correlation(object_type, correlation_id, mode, correlation_names,
                                                     correlation_objects, requested_correl_type=subtype,
@@ -53,6 +54,7 @@ if __name__ == '__main__':
     parser.add_argument('-a', '--address', help='Cryptocurrency addresses', type=str, dest='address', default=None, nargs="*")
     parser.add_argument('-p', '--page',help='page number, default=1' , type=int, default=1, dest='page')
     parser.add_argument('-n', '--nb',help='number of addresses by page, default=50' , type=int, default=50, dest='nb_elem')
+    parser.add_argument('-fo', '--filter_objects',help='filter correlation by object : domain, paste/item' , type=str, default=[], dest='objects', nargs="*")
     parser.add_argument('--node' ,help='correlation graph: max number of nodes, default=50' , type=int, default=50, dest='max_nodes')
     args = parser.parse_args()
 
@@ -60,10 +62,20 @@ if __name__ == '__main__':
     if subtype is None:
         parser.print_help()
         sys.exit(0)
+    else:
+        res = Cryptocurrency.cryptocurrency.api_check_objs_type([args.type])
+        if res:
+            print(json.dumps(res[0]))
+            sys.exit(0)
 
     page = sanitise_int(args.page, 1)
     nb_elem = sanitise_int(args.nb_elem, 50)
     max_nodes = sanitise_int(args.max_nodes, 300)
+    if args.objects:
+        res = Correlate_object.api_check_correlation_objects(args.objects)
+        if res:
+            print(json.dumps(res[0]))
+            sys.exit(0)
 
     dict_json = {}
     if args.address: