diff --git a/py/src/braintrust/framework2.py b/py/src/braintrust/framework2.py
index 781dc2ca..61652c87 100644
--- a/py/src/braintrust/framework2.py
+++ b/py/src/braintrust/framework2.py
@@ -128,6 +128,7 @@ class CodeParameters:
     schema: EvalParameters
     if_exists: IfExists | None
     metadata: Mapping[str, Any] | None = None
+    tags: Sequence[str] | None = None
 
     def to_function_definition(self, if_exists: IfExists | None, project_ids: ProjectIdCache) -> dict[str, Any]:
         schema = parameters_to_json_schema(self.schema)
@@ -146,6 +147,8 @@ def to_function_definition(self, if_exists: IfExists | None, project_ids: Projec
         }
         if self.metadata is not None:
             j["metadata"] = self.metadata
+        if self.tags is not None:
+            j["tags"] = list(self.tags)
         return j
 
 
@@ -353,6 +356,7 @@ def create(
         description: str | None = None,
         if_exists: IfExists | None = None,
         metadata: Mapping[str, Any] | None = None,
+        tags: Sequence[str] | None = None,
     ) -> EvalParameters:
         if slug is None or len(slug) == 0:
             slug = slugify.slugify(name)
@@ -365,6 +369,7 @@ def create(
             schema=schema,
             if_exists=if_exists,
             metadata=metadata,
+            tags=tags,
         )
         self.project.add_parameters(parameters)
         return schema
diff --git a/py/src/braintrust/parameters.py b/py/src/braintrust/parameters.py
index c8b71ddc..13c84a2c 100644
--- a/py/src/braintrust/parameters.py
+++ b/py/src/braintrust/parameters.py
@@ -68,10 +68,12 @@ class RemoteEvalParameters(SerializableDataClass):
     version: str | None
     schema: ParametersSchema
     data: dict[str, Any]
+    tags: list[str] | None = None
 
     @classmethod
     def from_function_row(cls, row: dict[str, Any]) -> "RemoteEvalParameters":
         function_data = row.get("function_data") or {}
+        tags = row.get("tags")
         return cls(
             id=row.get("id"),
             project_id=row.get("project_id"),
@@ -80,6 +82,7 @@ def from_function_row(cls, row: dict[str, Any]) -> "RemoteEvalParameters":
             version=row.get("_xact_id"),
             schema=function_data.get("__schema") or {},
             data=function_data.get("data") or {},
+            tags=list(tags) if tags is not None else None,
         )
 
     def validate(self, data: Any) -> bool:
diff --git a/py/src/braintrust/test_framework2.py b/py/src/braintrust/test_framework2.py
index d8745a4a..da874f02 100644
--- a/py/src/braintrust/test_framework2.py
+++ b/py/src/braintrust/test_framework2.py
@@ -331,3 +331,34 @@ class RequiredParam(BaseModel):
     }
     assert func_def["function_data"]["__schema"]["properties"]["model"]["x-bt-type"] == "model"
     assert "required_text" not in func_def["function_data"]["data"]
+
+
+def test_project_parameters_create_includes_tags(mock_project_ids):
+    project = projects.create("test-project")
+    project.parameters.create(
+        name="test-parameters",
+        schema={"model": {"type": "model", "default": "gpt-5-mini"}},
+        tags=["production", "v1"],
+    )
+
+    parameters = project._publishable_parameters
+    assert len(parameters) == 1
+
+    func_def = parameters[0].to_function_definition(None, mock_project_ids)
+
+    assert func_def["tags"] == ["production", "v1"]
+
+
+def test_project_parameters_create_excludes_tags_when_none(mock_project_ids):
+    project = projects.create("test-project")
+    project.parameters.create(
+        name="test-parameters",
+        schema={"model": {"type": "model", "default": "gpt-5-mini"}},
+    )
+
+    parameters = project._publishable_parameters
+    assert len(parameters) == 1
+
+    func_def = parameters[0].to_function_definition(None, mock_project_ids)
+
+    assert "tags" not in func_def
diff --git a/py/src/braintrust/test_logger.py b/py/src/braintrust/test_logger.py
index 3fc5c833..58dace90 100644
--- a/py/src/braintrust/test_logger.py
+++ b/py/src/braintrust/test_logger.py
@@ -331,6 +331,7 @@ def test_load_parameters_returns_remote_object(self):
                     "name": "Saved parameters",
                     "slug": "saved-parameters",
                     "_xact_id": "v1",
+                    "tags": ["production", "v1"],
                     "function_data": {
                         "type": "parameters",
                         "data": {"prefix": "hello"},
@@ -353,6 +354,7 @@ def test_load_parameters_returns_remote_object(self):
         assert isinstance(parameters, RemoteEvalParameters)
         assert parameters.id == "params-123"
         assert parameters.version == "v1"
+        assert parameters.tags == ["production", "v1"]
         assert parameters.data == {"prefix": "hello"}
         assert (
             logger._state._parameters_cache.get(
diff --git a/py/src/braintrust/type_tests/test_parameters_schema.py b/py/src/braintrust/type_tests/test_parameters_schema.py
index 920f2816..452c4e23 100644
--- a/py/src/braintrust/type_tests/test_parameters_schema.py
+++ b/py/src/braintrust/type_tests/test_parameters_schema.py
@@ -26,6 +26,6 @@ def test_parameters_create_accepts_discriminated_schema_entries() -> None:
         },
     }
 
-    created = project.parameters.create(name="test-parameters", schema=schema)
+    created = project.parameters.create(name="test-parameters", schema=schema, tags=["production", "v1"])
 
     assert created is schema