From 032c9ffdb4a95cf986a4800d98999bb761af063e Mon Sep 17 00:00:00 2001
From: Krrish Dholakia <krrishdholakia@berri.ai>
Date: Wed, 1 Jul 2026 06:50:43 +0000
Subject: [PATCH] fix: prevent proxy auth header collision with OAuth token in
 testMCPToolsListRequest

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 ui/litellm-dashboard/src/components/networking.tsx | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/ui/litellm-dashboard/src/components/networking.tsx b/ui/litellm-dashboard/src/components/networking.tsx
index 4bf8d6a1c88..7be6cbd31f3 100644
--- a/ui/litellm-dashboard/src/components/networking.tsx
+++ b/ui/litellm-dashboard/src/components/networking.tsx
@@ -6754,11 +6754,13 @@ export const testMCPToolsListRequest = async (
     const headers: Record<string, string> = {
       "Content-Type": "application/json",
     };
-    if (accessToken) {
-      headers[globalLitellmHeaderName] = `Bearer ${accessToken}`;
-    }
     if (oauthAccessToken) {
       headers["Authorization"] = `Bearer ${oauthAccessToken}`;
+      if (accessToken && globalLitellmHeaderName !== "Authorization") {
+        headers[globalLitellmHeaderName] = `Bearer ${accessToken}`;
+      }
+    } else if (accessToken) {
+      headers[globalLitellmHeaderName] = `Bearer ${accessToken}`;
     }
 
     const response = await fetch(url, {