diff --git a/pipeline/toctree.py b/pipeline/toctree.py
index df278d93..f263d766 100644
--- a/pipeline/toctree.py
+++ b/pipeline/toctree.py
@@ -2,6 +2,7 @@
 from typing import List
 
 from rstcloth import RstCloth
+from pipeline.utils import count_instances
 
 def create_toc_tree_page(version:str, relative_path:List[str]):
     target_file = os.path.join("target", f"{version}/docs/{'/'.join(relative_path)}.rst")
@@ -27,12 +28,13 @@ def create_toc_tree_page(version:str, relative_path:List[str]):
                     new_relative_path.extend(relative_path)
                     new_relative_path.append(sub_dir)
                     create_toc_tree_page(version, new_relative_path)
-
         if heading == "Instance libraries":
-            doc.note(content="The instance libraries are continuously extended and optimized. You can "
-                             "request the registration of new instances or corrections\/extensions  of existing "
-                             "instances by raising an issue on `openMINDS_instances "
-                             "<https://github.com/openMetadataInitiative/openMINDS_documentation/issues>`_.")
+            instances_count = count_instances(version)
+            doc.note(content=["The instance libraries are continuously extended and optimized.",
+            "You can request the registration of new instances or corrections\/extensions of existing",
+            "instances by raising an issue on `openMINDS_instances <https://github.com/openMetadataInitiative/openMINDS_instances/issues>`_",
+            "",
+            f"The {version} version of openMINDS contains {instances_count} metadata instances in total."])
 
         for link in links:
             doc.content(link)
diff --git a/pipeline/utils.py b/pipeline/utils.py
index b0696fd5..6b29e17a 100644
--- a/pipeline/utils.py
+++ b/pipeline/utils.py
@@ -22,6 +22,11 @@ def clone_sources():
         shutil.rmtree("sources_instances")
     Repo.clone_from("https://github.com/openMetadataInitiative/openMINDS_instances.git", to_path="sources_instances", depth=1)
 
+
+def count_instances(version:str) -> int:
+    instances_sources = os.path.join(os.path.realpath("."), "sources_instances", "instances", version)
+    return sum(1 for _ in glob.iglob(os.path.join(instances_sources, '**', '*.jsonld'), recursive=True))
+
 class SchemaLoader(object):
 
     def __init__(self):