From d4fd2bd1995bb3edcc726ba6ec3b2397b6d6312f Mon Sep 17 00:00:00 2001
From: Deepak Cherian <deepak@cherian.net>
Date: Wed, 18 Jun 2025 14:16:24 -0600
Subject: [PATCH] Expose top-level xarray.indexes in __init__

Also expose CoordinateTransformIndex

Closes #10424
---
 doc/whats-new.rst          |  2 ++
 xarray/__init__.py         |  3 ++-
 xarray/indexes/__init__.py | 11 ++++++++++-
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/doc/whats-new.rst b/doc/whats-new.rst
index 607661ed30b..a481b00bdee 100644
--- a/doc/whats-new.rst
+++ b/doc/whats-new.rst
@@ -12,6 +12,8 @@ v2025.07.0 (unreleased)
 
 New Features
 ~~~~~~~~~~~~
+- Expose :py:class:`~xarray.indexes.RangeIndex`, and :py:class:`~xarray.indexes.CoordinateTransformIndex` as public api
+  under the ``xarray.indexes`` namespace. By `Deepak Cherian <https://github.com/dcherian>`_.
 
 
 Breaking changes
diff --git a/xarray/__init__.py b/xarray/__init__.py
index d1001b4470a..04fb5b03867 100644
--- a/xarray/__init__.py
+++ b/xarray/__init__.py
@@ -1,6 +1,6 @@
 from importlib.metadata import version as _version
 
-from xarray import coders, groupers, testing, tutorial, ufuncs
+from xarray import coders, groupers, indexes, testing, tutorial, ufuncs
 from xarray.backends.api import (
     load_dataarray,
     load_dataset,
@@ -70,6 +70,7 @@
     # Sub-packages
     "coders",
     "groupers",
+    "indexes",
     "testing",
     "tutorial",
     "ufuncs",
diff --git a/xarray/indexes/__init__.py b/xarray/indexes/__init__.py
index fafdb49c7e1..c53a4b8c2ce 100644
--- a/xarray/indexes/__init__.py
+++ b/xarray/indexes/__init__.py
@@ -3,11 +3,20 @@
 
 """
 
+from xarray.core.coordinate_transform import CoordinateTransform
 from xarray.core.indexes import (
+    CoordinateTransformIndex,
     Index,
     PandasIndex,
     PandasMultiIndex,
 )
 from xarray.indexes.range_index import RangeIndex
 
-__all__ = ["Index", "PandasIndex", "PandasMultiIndex", "RangeIndex"]
+__all__ = [
+    "CoordinateTransform",
+    "CoordinateTransformIndex",
+    "Index",
+    "PandasIndex",
+    "PandasMultiIndex",
+    "RangeIndex",
+]