diff --git a/python/lsst/daf/butler/remote_butler/server/handlers/_external.py b/python/lsst/daf/butler/remote_butler/server/handlers/_external.py
index 1ac350dc91..982c008c42 100644
--- a/python/lsst/daf/butler/remote_butler/server/handlers/_external.py
+++ b/python/lsst/daf/butler/remote_butler/server/handlers/_external.py
@@ -199,6 +199,8 @@ def _get_file_by_ref(butler: Butler, ref: DatasetRef) -> GetFileResponseModel:
     return GetFileResponseModel(dataset_ref=ref.to_simple(), artifact=payload)
 
 
+# TODO DM-46204: This can be removed once the RSP recommended image has been
+# upgraded to a version that contains DM-46129.
 @external_router.get(
     "/v1/collection_info", summary="Get information about a collection", response_model_exclude_unset=True
 )
@@ -233,6 +235,8 @@ def get_collection_summary(
     return GetCollectionSummaryResponseModel(summary=butler.registry.getCollectionSummary(name).to_simple())
 
 
+# TODO DM-46204: This can be removed once the RSP recommended image has been
+# upgraded to a version that contains DM-46129.
 @external_router.post(
     "/v1/query_collections", summary="Search for collections with names that match an expression"
 )
diff --git a/python/lsst/daf/butler/remote_butler/server_models.py b/python/lsst/daf/butler/remote_butler/server_models.py
index d1e61a17d3..6573d70967 100644
--- a/python/lsst/daf/butler/remote_butler/server_models.py
+++ b/python/lsst/daf/butler/remote_butler/server_models.py
@@ -142,6 +142,8 @@ class ErrorResponseModel(pydantic.BaseModel):
     """Detailed explanation of the error that will be sent to the client."""
 
 
+# TODO DM-46204: This can be removed once the RSP recommended image has been
+# upgraded to a version that contains DM-46129.
 class GetCollectionInfoResponseModel(pydantic.BaseModel):
     """Response model for get_collection_info."""
 
@@ -174,6 +176,8 @@ class ExpandDataIdResponseModel(pydantic.BaseModel):
     data_coordinate: SerializedDataCoordinate
 
 
+# TODO DM-46204: This can be removed once the RSP recommended image has been
+# upgraded to a version that contains DM-46129.
 class QueryCollectionsRequestModel(pydantic.BaseModel):
     """Request model for query_collections."""
 
@@ -183,6 +187,8 @@ class QueryCollectionsRequestModel(pydantic.BaseModel):
     include_chains: bool
 
 
+# TODO DM-46204: This can be removed once the RSP recommended image has been
+# upgraded to a version that contains DM-46129.
 class QueryCollectionsResponseModel(pydantic.BaseModel):
     """Response model for query_collections."""
 
diff --git a/tests/test_server.py b/tests/test_server.py
index 4b41c5d01b..be7d0cd81c 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -42,6 +42,7 @@
     from lsst.daf.butler.remote_butler._authentication import _EXPLICIT_BUTLER_ACCESS_TOKEN_ENVIRONMENT_KEY
     from lsst.daf.butler.remote_butler.server import create_app
     from lsst.daf.butler.remote_butler.server._dependencies import butler_factory_dependency
+    from lsst.daf.butler.remote_butler.server_models import QueryCollectionsRequestModel
     from lsst.daf.butler.tests.server import TEST_REPOSITORY_NAME, UnhandledServerError, create_test_server
 
     reason_text = ""
@@ -426,6 +427,26 @@ def test_query_keepalive(self):
                 self.assertGreaterEqual(mock_timeout.call_count, 3)
                 self.assertGreaterEqual(mock_keep_alive.call_count, 2)
 
+    # TODO DM-46204: This can be removed once the RSP recommended image has
+    # been upgraded to a version that contains DM-46129.
+    def test_deprecated_collection_endpoints(self):
+        # These REST endpoints are no longer used by Butler client so they need
+        # to be checked separately until they can be removed.
+        json = self.butler._connection.get(
+            "collection_info",
+            params={"name": "imported_g", "include_doc": True, "include_parents": True},
+        ).json()
+        self.assertEqual(json["name"], "imported_g")
+        self.assertEqual(json["type"], 1)
+
+        json = self.butler._connection.post(
+            "query_collections",
+            QueryCollectionsRequestModel(
+                search=["imported_*"], collection_types=[1], flatten_chains=False, include_chains=False
+            ),
+        ).json()
+        self.assertCountEqual(json["collections"], ["imported_g", "imported_r"])
+
 
 def _create_corrupted_dataset(repo: MetricTestRepo) -> DatasetRef:
     run = "corrupted-run"