diff --git a/gt/_base_api.py b/gt/_base_api.py
deleted file mode 100644
index c71506457..000000000
--- a/gt/_base_api.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from typing import cast
-
-from ._tbl_data import TblData, TblDataAPI
-
-
-class BaseAPI:
-    # It's important that we never keep state in this class, as
-    # we will be multiply inheriting from it. I think. --jcheng
-
-    def _get_tbl_data(self) -> TblData:
-        result = cast(TblDataAPI, self)._tbl_data
-        if result is None:
-            raise AssertionError(
-                "BaseAPI._data was called before TblDataAPI was initialized"
-            )
-        return result
diff --git a/gt/_boxhead.py b/gt/_boxhead.py
index 86d77b323..b0e50ef6c 100644
--- a/gt/_boxhead.py
+++ b/gt/_boxhead.py
@@ -2,13 +2,12 @@
 
 import pandas as pd
 
-from ._base_api import BaseAPI
 from ._tbl_data import get_column_names
 
 from ._utils import _assert_list_is_subset
 
 
-class BoxheadAPI(BaseAPI):
+class BoxheadAPI():
     def cols_label(self, **kwargs: str):
         """
         Relabel one or more columns.
diff --git a/gt/_gt_data.py b/gt/_gt_data.py
index 0cbaa9421..1f0a47df7 100644
--- a/gt/_gt_data.py
+++ b/gt/_gt_data.py
@@ -46,7 +46,6 @@ def render_formats(
 from enum import Enum, auto
 import pandas as pd
 
-from ._base_api import BaseAPI
 from ._tbl_data import TblData, get_column_names
 
 from ._utils import _assert_list_is_subset
@@ -142,7 +141,6 @@ def _get_effective_number_of_columns(self) -> int:
 
 from typing import Optional
 
-from ._base_api import BaseAPI
 from ._tbl_data import TblData, n_rows
 
 
@@ -395,7 +393,6 @@ def __init__(self, locale: str = ""):
 
 from typing import Any, Callable, TypeVar, Union, List, cast, Optional, Tuple
 
-from ._base_api import BaseAPI
 from ._tbl_data import n_rows
 
 FormatFn = Callable[[Any], str]
diff --git a/gt/_stub.py b/gt/_stub.py
index 5c0a78a24..4f909e4b6 100644
--- a/gt/_stub.py
+++ b/gt/_stub.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
-from ._base_api import BaseAPI
 
 
-class StubAPI(BaseAPI):
+class StubAPI():
     pass