diff --git a/app/api/main/krb5_router.py b/app/api/main/krb5_router.py
index 37ed49721..5dfc8937a 100644
--- a/app/api/main/krb5_router.py
+++ b/app/api/main/krb5_router.py
@@ -155,13 +155,14 @@ async def setup_kdc(
 )
 async def ktadd(
     kerberos_adapter: FromDishka[KerberosFastAPIAdapter],
-    request: KtaddRequest,
+    names: Annotated[LIMITED_LIST, Body()],
 ) -> StreamingResponse:
     """Create keytab from kadmin server.
 
     :param Annotated[LDAPSession, Depends ldap_session: ldap
     :return bytes: file
     """
+    request = KtaddRequest(names=names)
     return await kerberos_adapter.ktadd(request)
 
 
@@ -183,12 +184,13 @@ async def get_krb_status(
 
 
 @krb5_router.post(
-    "/principal",
+    "/principal/add",
     dependencies=[Depends(verify_auth), Depends(require_master_db)],
     error_map=error_map,
 )
 async def add_principal(
-    request: PrincipalAddRequest,
+    primary: Annotated[LIMITED_STR, Body()],
+    instance: Annotated[LIMITED_STR, Body()],
     kerberos_adapter: FromDishka[KerberosFastAPIAdapter],
 ) -> None:
     """Create principal in kerberos with given name.
@@ -198,6 +200,9 @@ async def add_principal(
     :param Annotated[LDAPSession, Depends ldap_session: ldap
     :raises HTTPException: on failed kamin request.
     """
+    request = PrincipalAddRequest(
+        principal_name=f"{primary}/{instance}",
+    )
     await kerberos_adapter.add_principal(request)
 
 
diff --git a/tests/test_api/test_main/test_kadmin.py b/tests/test_api/test_main/test_kadmin.py
index b13909357..9ed7244fb 100644
--- a/tests/test_api/test_main/test_kadmin.py
+++ b/tests/test_api/test_main/test_kadmin.py
@@ -214,7 +214,7 @@ async def test_ktadd(
     names = ["test1", "test2"]
     response = await http_client.post(
         "/kerberos/ktadd",
-        json={"names": names, "is_rand_key": False},
+        json=names,
     )
 
     kadmin.ktadd.assert_called()  # type: ignore
@@ -245,7 +245,7 @@ async def test_ktadd_400(
     names = ["test1", "test2"]
     response = await http_client.post(
         "/kerberos/ktadd",
-        json={"names": names, "is_rand_key": False},
+        json=names,
     )
 
     assert response.status_code == status.HTTP_400_BAD_REQUEST
@@ -395,10 +395,10 @@ async def test_add_princ(
     :param LDAPSession ldap_session: ldap
     """
     response = await http_client.post(
-        "/kerberos/principal",
+        "/kerberos/principal/add",
         json={
-            "principal_name": "host/12345",
-            "password": None,
+            "primary": "host",
+            "instance": "12345",
         },
     )
     kadmin_args = kadmin.add_principal.call_args.args  # type: ignore