diff --git a/associateitem.md b/associateitem.md
new file mode 100644
index 00000000..0502e733
--- /dev/null
+++ b/associateitem.md
@@ -0,0 +1,72 @@
+# AssociateItem Endpoints
+[Back to the list of all defined endpoints](endpoints.md)
+
+## Create AssociateItem
+PUT **/api/core/associateitem/create?sourceuuid=<:sourceuuid>&targetuuid=<:targetuuid>&modename=<:modename>**
+
+Create a metadatafield from <:sourceuuid> pointing with its authority value to <:targetuuid< with the configuration from <:modename>. Checks authorizations from the mode configuration (extended permission check) on both items.
+Provide information about whether the operation succeeded. The response is a simple boolean text value.
+```text  
+true|false
+```
+Return codes:
+* 200 OK - if the metadata already existed
+* 201 Created - if the metadata was created
+* 401 Unauthorized - if you are not authenticated
+* 403 if you are not logged in with sufficient permissions to edit one of the item based on the configuration
+* 503 if the feature is globally deactivated
+
+## Delete AssociateItem
+DELETE **/api/core/associateitem/delete?sourceuuid=<:sourceuuid>&targetuuid=<:targetuuid>&modename=<:modename>**
+
+Delete a metadatafield from <:sourceuuid> pointing with its authority value to <:targetuuid< with the configuration from <:modename>-
+Provide information about whether the operation succeeded. The response is a simple boolean text value.
+```text  
+true|false
+```
+Return codes:
+* 200 OK - if the metadata was deleted
+* 401 Unauthorized - if you are not authenticated
+* 403 if you are not logged in with sufficient permissions to edit one of the item based on the configuration
+* 503 if the feature is globally deactivated
+
+## Find available associateitem modes
+**/api/core/associateitemmodes/search/search/findModesById?uuid=<:id>**
+
+Provide detailed information about associate item modes available to current user for Item having uuid passed as input parameter.
+The JSON response document is as follows:
+```json
+{
+  "_embedded": {
+    "associateitemmodes": [
+      {
+        "id": "PROJECTPUBLICATION",
+        "name": "PROJECTPUBLICATION",
+        "label": null,
+        "discovery": "fundings",
+				"metadatafield": "dc.relation.funding",
+        "type": "associateitemmode",
+        "_links": {
+          "self": {
+            "href": "https://{dspace-cris-backend-url}/server/api/core/associateitemmodes/PROJECTPUBLICATION"
+          }
+        }
+      }
+    ]
+  },
+  "_links": {
+    "self": {
+      "href": "https://{dspace-cris-backend-url}/server/api/core/associateitemmodes/search/findModesById?uuid=9880d9e1-5441-4e14-a6e8-6cf453bc25f9"
+    }
+  },
+  "page": {
+    "size": 20,
+    "totalElements": 1,
+    "totalPages": 1,
+    "number": 0
+  }
+}
+```
+Return codes:
+* 200 OK - if the operation succeed
+* 400 Bad request - if the id parameter is missing or invalid
diff --git a/endpoints.md b/endpoints.md
index a5efe9a5..54fb2a8c 100644
--- a/endpoints.md
+++ b/endpoints.md
@@ -17,6 +17,7 @@
 * /api/core/groups
 * [/api/core/{model}/search](search-rels.md)
 * [/api/core/groups/securitysettings/<entityType>](securitysettings-endpoint.md)
+* [/api/core/associateitem](associateitem.md)
 * [/api/authn/login](authentication.md#Login)
 * [/api/authn/logout](authentication.md#Logout)
 * [/api/authn/status](authentication.md#Status)