From d66e622ef5e36d726c8eceef0b61c4e1011cd19d Mon Sep 17 00:00:00 2001
From: shr00mie <7096317+shr00mie@users.noreply.github.com>
Date: Mon, 2 Feb 2026 12:29:30 -0800
Subject: [PATCH] Fix api_token not applied when using configure_default_client

When calling configure_default_client(api_host, api_token=...) and then
using the convenience API (e.g. list_downloaded_models()), the LM Studio
server could return 'An LM Studio API token is required to make requests
to this server, but none was provided.' The token was never sent because
the module-level _default_api_token was never updated.

Root cause: In configure_default_client only _default_api_host was
declared global. The assignment _default_api_token = api_token therefore
created a local variable; the global _default_api_token remained None.
Later, get_default_client() created Client(_default_api_host,
_default_api_token) with the token still None.

Fix: Declare both _default_api_host and _default_api_token as global in
configure_default_client so the assignment updates the module-level
variable. One-line change; no other behavior change.
---
 src/lmstudio/sync_api.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lmstudio/sync_api.py b/src/lmstudio/sync_api.py
index ba73958..5751d4b 100644
--- a/src/lmstudio/sync_api.py
+++ b/src/lmstudio/sync_api.py
@@ -1709,7 +1709,7 @@ def list_loaded_models(
 @sdk_public_api()
 def configure_default_client(api_host: str, api_token: str | None = None) -> None:
     """Set the server API host for the default global client (without creating the client)."""
-    global _default_api_host
+    global _default_api_host, _default_api_token
     if _default_client is not None:
         raise LMStudioClientError(
             "Default client is already created, cannot set its API host or token."