diff --git a/nocodb/api.py b/nocodb/api.py
index 296fa21..b0fffdc 100644
--- a/nocodb/api.py
+++ b/nocodb/api.py
@@ -1,4 +1,5 @@
 from enum import Enum
+from typing import Optional
 from urllib.parse import urljoin
 from .nocodb import NocoDBProject
 
@@ -50,6 +51,27 @@ def get_row_detail_uri(
             )
         ))
 
+    def get_row_relation_create_uri(
+        self,
+        project: NocoDBProject,
+        table: str,
+        relation_type: str,
+        row_id: int,
+        column_name: str,
+        ref_row_id: int,
+    ) -> str:
+        return urljoin(self.__base_data_uri, "/".join(
+            (
+                project.org_name,
+                project.project_name,
+                table,
+                str(row_id),
+                relation_type,
+                column_name,
+                str(ref_row_id),
+            )
+        ))
+
     def get_nested_relations_rows_list_uri(
         self,
         project: NocoDBProject,
@@ -86,7 +108,7 @@ def get_project_tables_uri(
         ))
     
     def get_table_meta_uri(
-        self, tableId: str, operation: str = None,
+        self, tableId: str, operation: Optional[str] = None,
     ) -> str:
         additional_path = []
         if operation is not None:
@@ -100,7 +122,7 @@ def get_table_meta_uri(
         ))
     
     def get_column_uri(
-        self, columnId: str, operation: str = None,
+        self, columnId: str, operation: Optional[str] = None,
     ) -> str:
         additional_path = []
         if operation is not None:
diff --git a/nocodb/infra/requests_client.py b/nocodb/infra/requests_client.py
index 98e63b5..3e43b1d 100644
--- a/nocodb/infra/requests_client.py
+++ b/nocodb/infra/requests_client.py
@@ -103,6 +103,22 @@ def table_find_one(
             params=get_query_params(filter_obj, params),
         ).json()
 
+    def table_row_relation_create(
+        self,
+        project: NocoDBProject,
+        table: str,
+        relation_type: str,
+        row_id: int,
+        column_name: str,
+        ref_row_id: int,
+    ) -> dict:
+        return self._request(
+            "POST",
+            self.__api_info.get_row_relation_create_uri(
+                project, table, relation_type, row_id, column_name, ref_row_id
+            ),
+        ).json()
+
     def table_row_nested_relations_list(
         self,
         project: NocoDBProject,
diff --git a/nocodb/nocodb.py b/nocodb/nocodb.py
index 3d7eb07..6a456b8 100644
--- a/nocodb/nocodb.py
+++ b/nocodb/nocodb.py
@@ -32,7 +32,7 @@ def get_header(self) -> dict:
         pass
 
 
-class APIToken:
+class APIToken(AuthToken):
     def __init__(self, token: str):
         self.__token = token
 
@@ -40,7 +40,7 @@ def get_header(self) -> dict:
         return {"xc-token": self.__token}
 
 
-class JWTAuthToken:
+class JWTAuthToken(AuthToken):
     def __init__(self, token: str):
         self.__token = token
 
@@ -101,6 +101,17 @@ def table_row_delete(
     ) -> int:
         pass
 
+    @abstractmethod
+    def table_row_relation_create(
+        self,
+        project: NocoDBProject,
+        relation_type: str,
+        row_id: int,
+        column_name: str,
+        ref_row_id: int,
+    ) -> dict:
+        pass
+
     @abstractmethod
     def table_row_nested_relations_list(
         self,