From 2a138a202f034ffec3bc919e39c9f71dd61a3f0f Mon Sep 17 00:00:00 2001
From: Lucas Rothman <51925729+lucasrothman@users.noreply.github.com>
Date: Thu, 8 Jan 2026 10:02:47 -0800
Subject: [PATCH] fix: properly use litellm api keys (#18832)

---
 litellm/responses/main.py | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/litellm/responses/main.py b/litellm/responses/main.py
index 8177b177fe..07fc3cb02c 100644
--- a/litellm/responses/main.py
+++ b/litellm/responses/main.py
@@ -577,7 +577,13 @@ def responses(
             api_base=litellm_params.api_base,
             api_key=litellm_params.api_key,
         )
-        
+
+        # Use dynamic credentials from get_llm_provider (e.g., when use_litellm_proxy=True)
+        if dynamic_api_key is not None:
+            litellm_params.api_key = dynamic_api_key
+        if dynamic_api_base is not None:
+            litellm_params.api_base = dynamic_api_base
+
         #########################################################
         # Update input with provider-specific file IDs if managed files are used
         #########################################################
@@ -1483,6 +1489,12 @@ def compact_responses(
             api_key=litellm_params.api_key,
         )
 
+        # Use dynamic credentials from get_llm_provider (e.g., when use_litellm_proxy=True)
+        if dynamic_api_key is not None:
+            litellm_params.api_key = dynamic_api_key
+        if dynamic_api_base is not None:
+            litellm_params.api_base = dynamic_api_base
+
         if custom_llm_provider is None:
             raise ValueError("custom_llm_provider is required but passed as None")