diff --git a/src/resources/responses/responses.ts b/src/resources/responses/responses.ts
index 6d6f6ef1c..d0078ffaf 100644
--- a/src/resources/responses/responses.ts
+++ b/src/resources/responses/responses.ts
@@ -4734,6 +4734,14 @@ export interface ResponseCreateParamsBase {
    */
   max_output_tokens?: number | null;
 
+  /**
+   * The maximum number of total calls to built-in tools that can be processed in a
+   * response. This maximum number applies across all built-in tool calls, not per
+   * individual tool. Any further attempts to call a tool by the model will be
+   * ignored.
+   */
+  max_tool_calls?: number | null;
+
   /**
    * Set of 16 key-value pairs that can be attached to an object. This can be useful
    * for storing additional information about the object in a structured format, and