From 561d84e40f5c493b37bf20b1c45b7bdedf52816f Mon Sep 17 00:00:00 2001
From: Sunny <25066078+LoSunny@users.noreply.github.com>
Date: Fri, 3 Jul 2026 18:24:15 +0800
Subject: [PATCH] Update endpoint URL construction in handler.py

---
 litellm/llms/anthropic/count_tokens/handler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/litellm/llms/anthropic/count_tokens/handler.py b/litellm/llms/anthropic/count_tokens/handler.py
index e70e0f19b33..2e000f6c08d 100644
--- a/litellm/llms/anthropic/count_tokens/handler.py
+++ b/litellm/llms/anthropic/count_tokens/handler.py
@@ -67,7 +67,7 @@ class AnthropicCountTokensHandler(AnthropicCountTokensConfig):
             verbose_logger.debug(f"Transformed request: {request_body}")
 
             # Get endpoint URL
-            endpoint_url = api_base or self.get_anthropic_count_tokens_endpoint()
+            endpoint_url = f"{api_base}/v1/messages/count_tokens" if api_base else self.get_anthropic_count_tokens_endpoint()
 
             verbose_logger.debug(f"Making request to: {endpoint_url}")