diff --git a/CHANGELOG b/CHANGELOG
index 8fb51a45f8..d2f55d0edc 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,4 @@
+* Add resources method to ModelStorage
 * Validate selection format in Dict schema
 * Allow to extend Field's string and help
 * Add console
diff --git a/doc/ref/models/models.rst b/doc/ref/models/models.rst
index 10157e3bb7..690c6d6253 100644
--- a/doc/ref/models/models.rst
+++ b/doc/ref/models/models.rst
@@ -328,6 +328,11 @@ Dual methods:
 
 Instance methods:
 
+.. method:: ModelStorage.resources()
+
+    Return a dictionary with the number of attachments (`attachment_count`),
+    notes (`note_count`) and unread note (`note_unread`).
+
 .. method:: ModelStorage.get_rec_name(name)
 
     Getter for the :class:`trytond.model.fields.Function` field
diff --git a/trytond/model/modelstorage.py b/trytond/model/modelstorage.py
index 650142bd67..1e8772408f 100644
--- a/trytond/model/modelstorage.py
+++ b/trytond/model/modelstorage.py
@@ -114,6 +114,7 @@ class ModelStorage(Model):
                     'search': RPC(result=lambda r: list(map(int, r))),
                     'search_count': RPC(),
                     'search_read': RPC(),
+                    'resources': RPC(instantiate=0, unique=False),
                     'export_data': RPC(instantiate=0, unique=False),
                     'import_data': RPC(readonly=False),
                     })
@@ -525,6 +526,24 @@ class ModelStorage(Model):
             return domain
         return process(domain)
 
+    def resources(self):
+        pool = Pool()
+        Attachment = pool.get('ir.attachment')
+        Note = pool.get('ir.note')
+
+        return {
+            'attachment_count': Attachment.search_count([
+                    ('resource', '=', str(self)),
+                    ]),
+            'note_count': Note.search_count([
+                    ('resource', '=', str(self)),
+                    ]),
+            'note_unread': Note.search_count([
+                    ('resource', '=', str(self)),
+                    ('unread', '=', True),
+                    ]),
+            }
+
     def get_rec_name(self, name):
         '''
         Return the rec_name of the instance.