From 0557321cc2c8fd858cc27a20317ba6fc5b592c7c Mon Sep 17 00:00:00 2001 From: PRABHU KIRAN VANDRANKI <72809214+VANDRANKI@users.noreply.github.com> Date: Tue, 5 May 2026 14:46:47 -0400 Subject: [PATCH] fix(mcp): add target_format param to _process_mcp_tools_to_openai_format --- litellm/responses/mcp/litellm_proxy_mcp_handler.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/litellm/responses/mcp/litellm_proxy_mcp_handler.py b/litellm/responses/mcp/litellm_proxy_mcp_handler.py index b729cdb92f2..9bc2b439769 100644 --- a/litellm/responses/mcp/litellm_proxy_mcp_handler.py +++ b/litellm/responses/mcp/litellm_proxy_mcp_handler.py @@ -388,6 +388,7 @@ class LiteLLM_Proxy_MCP_Handler: user_api_key_auth: Any, mcp_tools_with_litellm_proxy: List[ToolParam], litellm_trace_id: Optional[str] = None, + target_format: Literal["responses", "chat"] = "responses", ) -> tuple[List[Any], dict[str, str]]: """ Centralized method to process MCP tools through the complete pipeline. @@ -396,6 +397,8 @@ class LiteLLM_Proxy_MCP_Handler: user_api_key_auth: User authentication info for access control mcp_tools_with_litellm_proxy: ToolParam objects with server_url starting with "litellm_proxy" litellm_trace_id: Optional trace ID for linking list_mcp_tools spend logs to parent request + target_format: "chat" for ChatCompletions format (nested ``function`` key), + "responses" for Responses API flat format. Default: "responses". Returns: List of tools in OpenAI format ready to be sent to the LLM @@ -411,7 +414,7 @@ class LiteLLM_Proxy_MCP_Handler: ) openai_tools = LiteLLM_Proxy_MCP_Handler._transform_mcp_tools_to_openai( - deduplicated_mcp_tools + deduplicated_mcp_tools, target_format=target_format ) return openai_tools, tool_server_map