diff --git a/doc/changelog.d/4656.fixed.md b/doc/changelog.d/4656.fixed.md
new file mode 100644
index 000000000000..45725ec145e6
--- /dev/null
+++ b/doc/changelog.d/4656.fixed.md
@@ -0,0 +1 @@
+Arguments in standalone launcher.
diff --git a/src/ansys/fluent/core/launcher/fluent_launcher_options.json b/src/ansys/fluent/core/launcher/fluent_launcher_options.json
index 5b059f75a797..cf403b077304 100644
--- a/src/ansys/fluent/core/launcher/fluent_launcher_options.json
+++ b/src/ansys/fluent/core/launcher/fluent_launcher_options.json
@@ -32,5 +32,9 @@
     "scheduler_account": {
         "type": "str",
         "fluent_format": " -scheduler_account={}"
-    }
+    },
+    "insecure_mode": {
+        "type": "bool",
+        "fluent_format": " -grpc-allow-remote-host -grpc-insecure-mode"
+    },
 }
\ No newline at end of file
diff --git a/src/ansys/fluent/core/launcher/standalone_launcher.py b/src/ansys/fluent/core/launcher/standalone_launcher.py
index ba845dbf6b9a..ae76dca2a01e 100644
--- a/src/ansys/fluent/core/launcher/standalone_launcher.py
+++ b/src/ansys/fluent/core/launcher/standalone_launcher.py
@@ -105,6 +105,8 @@ def __init__(
         topy: str | list | None = None,
         start_watchdog: bool | None = None,
         file_transfer_service: Any | None = None,
+        certificates_folder: str | None = None,
+        insecure_mode: bool = False,
     ):
         """
         Launch a Fluent session in standalone mode.
@@ -174,6 +176,12 @@ def __init__(
             GUI-less Fluent sessions started by PyFluent are properly closed when the current Python process ends.
         file_transfer_service : Any
             Service for uploading/downloading files to/from the server.
+        certificates_folder : str, optional
+            Path to the folder containing TLS certificates for Fluent's gRPC server.
+        insecure_mode : bool, optional
+            If True, Fluent's gRPC server will be started in insecure mode without TLS.
+            This mode is not recommended. For more details on the implications
+            and usage of insecure mode, refer to the Fluent documentation.
 
         Raises
         ------
@@ -187,6 +195,18 @@ def __init__(
         """
         import ansys.fluent.core as pyfluent
 
+        if certificates_folder is None and not insecure_mode:
+            raise ValueError(
+                "To launch Fluent in Slurm environment, set `certificates_folder`."
+            )
+        if certificates_folder is not None and insecure_mode:
+            raise ValueError(
+                "`certificates_folder` and `insecure_mode` cannot be set at the same time."
+            )
+
+        self.certificates_folder = certificates_folder
+        self.insecure_mode = insecure_mode
+
         locals_ = locals().copy()
         argvals = {
             arg: locals_.get(arg)
diff --git a/src/ansys/fluent/core/session_utilities.py b/src/ansys/fluent/core/session_utilities.py
index d73e9298602f..3ad0573b84b3 100644
--- a/src/ansys/fluent/core/session_utilities.py
+++ b/src/ansys/fluent/core/session_utilities.py
@@ -85,6 +85,8 @@ def from_install(
         topy: str | list | None = None,
         start_watchdog: bool | None = None,
         file_transfer_service: Any | None = None,
+        certificates_folder: str | None = None,
+        insecure_mode: bool = False,
     ):
         """
         Launch a Fluent session in standalone mode.
@@ -152,6 +154,12 @@ def from_install(
             GUI-less Fluent sessions started by PyFluent are properly closed when the current Python process ends.
         file_transfer_service : Any
             Service for uploading/downloading files to/from the server.
+        certificates_folder : str, optional
+            Path to the folder containing TLS certificates for Fluent's gRPC server.
+        insecure_mode : bool, optional
+            If True, Fluent's gRPC server will be started in insecure mode without TLS.
+            This mode is not recommended. For more details on the implications
+            and usage of insecure mode, refer to the Fluent documentation.
 
         Raises
         ------