diff --git a/docs/tech_details/api/index.rst b/docs/tech_details/api/index.rst
index 05e1aa2d..8286b592 100644
--- a/docs/tech_details/api/index.rst
+++ b/docs/tech_details/api/index.rst
@@ -17,3 +17,4 @@ AppAPI Nextcloud APIs
 	fileactionsmenu
 	notifications
 	talkbots
+	other_ocs
diff --git a/docs/tech_details/api/other_ocs.rst b/docs/tech_details/api/other_ocs.rst
new file mode 100644
index 00000000..23773d4a
--- /dev/null
+++ b/docs/tech_details/api/other_ocs.rst
@@ -0,0 +1,20 @@
+Other OCS APIs
+==============
+
+With AppAPI authentication it is possible for ExApps to use any other OCS APIs, that doesn't require OCP implementation:
+
+.. note::
+
+	To access these APIs they have to be supported by AppAPI (see :ref:`api_scopes`),
+	and ExApp have to require granted access (in ``info.xml``) to them accordingly.
+
+1. Calendar
+2. Contacts
+3. File System & Tags
+4. Shares
+5. Notifications
+6. Users & Groups
+7. User & Weather status
+8. Activities
+9. Notes
+10. Etc.