diff --git a/generated_types.json b/generated_types.json
index 0da71c82..65838847 100644
--- a/generated_types.json
+++ b/generated_types.json
@@ -2533,7 +2533,8 @@
             "enum": [
               "organization",
               "project",
-              "function"
+              "function",
+              "mcp_server"
             ],
             "description": "The type of the object the environment variable is scoped for"
           },
diff --git a/py/src/braintrust/_generated_types.py b/py/src/braintrust/_generated_types.py
index bd279985..82733eb9 100644
--- a/py/src/braintrust/_generated_types.py
+++ b/py/src/braintrust/_generated_types.py
@@ -668,7 +668,7 @@ class EnvVar(TypedDict):
     """
     Unique identifier for the environment variable
     """
-    object_type: Literal['organization', 'project', 'function']
+    object_type: Literal['organization', 'project', 'function', 'mcp_server']
     """
     The type of the object the environment variable is scoped for
     """
diff --git a/py/src/braintrust/generated_types.py b/py/src/braintrust/generated_types.py
index f2dc1bfb..7ff84095 100644
--- a/py/src/braintrust/generated_types.py
+++ b/py/src/braintrust/generated_types.py
@@ -1,4 +1,4 @@
-"""Auto-generated file (content hash 6f98c901e6705c9d) -- do not modify"""
+"""Auto-generated file (content hash 38c1b7c6e847da09) -- do not modify"""
 
 from ._generated_types import (
     Acl,