diff --git a/lms/lib/comment_client/comment_client.py b/lms/lib/comment_client/comment_client.py
index 5ee2b9c68e..fe485433d6 100644
--- a/lms/lib/comment_client/comment_client.py
+++ b/lms/lib/comment_client/comment_client.py
@@ -22,6 +22,9 @@ def search_trending_tags(course_id, query_params={}, *args, **kwargs):
     attributes = dict(default_params.items() + query_params.items())
     return perform_request('get', _url_for_search_trending_tags(), attributes, *args, **kwargs)
 
+def tags_autocomplete(value, *args, **kwargs):
+    return perform_request('get', _url_for_threads_tags_autocomplete(), {'value': value}, *args, **kwargs)
+
 def _url_for_search_similar_threads():
     return "{prefix}/search/threads/more_like_this".format(prefix=settings.PREFIX)
 
@@ -30,3 +33,6 @@ def _url_for_search_recent_active_threads():
 
 def _url_for_search_trending_tags():
     return "{prefix}/search/tags/trending".format(prefix=settings.PREFIX)
+
+def _url_for_threads_tags_autocomplete():
+    return "{prefix}/threads/tags/autocomplete".format(prefix=settings.PREFIX)