diff --git a/controllers/recommender_v1_controller.rb b/controllers/recommender_v1_controller.rb
index 5b0123a9..29991299 100644
--- a/controllers/recommender_v1_controller.rb
+++ b/controllers/recommender_v1_controller.rb
@@ -1,17 +1,10 @@
 class RecommenderController < ApplicationController
   namespace "/recommender_v1" do
 
-    # execute an annotator query
+    # Mark this route as deprecated
     get do
-      text = params["text"]
-      raise error 400, "A text to be analyzed by the recommender must be supplied using the argument text=<text>" if text.nil? || text.strip.empty?
-      acronyms = restricted_ontologies_to_acronyms(params)
-      display_classes = params['display_classes'].eql?('true')  # default will be false
-      recommender = Recommender::Models::NcboRecommender.new
-      recommendations = recommender.recommend(text, acronyms, display_classes)
-      reply 200, recommendations
+      reply 410, { message: "This API endpoint has been deprecated and is no longer available. Please use /recommender or refer to the API documentation for updated routes." }
     end
 
   end
 end
-
diff --git a/test/controllers/test_recommender_v1_controller.rb b/test/controllers/test_recommender_v1_controller.rb
index 01bde871..7ef09cee 100644
--- a/test/controllers/test_recommender_v1_controller.rb
+++ b/test/controllers/test_recommender_v1_controller.rb
@@ -1,40 +1,10 @@
 require_relative '../test_case'
-
+# recommender_v1 is deprecated as of 2024-10-27
+# TODO: remove completely after 2025-10-27
 class TestRecommenderV1Controller < TestCase
-
-  def before_suite
-    LinkedData::SampleData::Ontology.delete_ontologies_and_submissions
-    @@ontologies = LinkedData::SampleData::Ontology.sample_owl_ontologies(process_submission: true)
-    @@text = <<eos
-Ginsenosides chemistry, biosynthesis, analysis, and potential health effects in software concept or data." "Ginsenosides are a special group of triterpenoid saponins that can be classified into two groups by the skeleton of their aglycones, namely dammarane- and oleanane-type. Ginsenosides are found nearly exclusively in Panax species (ginseng) and up to now more than 150 naturally occurring ginsenosides have been isolated from roots, leaves/stems, fruits, and/or flower heads of ginseng. The same concept indicates Ginsenosides have been the target of a lot of research as they are believed to be the main active principles behind the claims of ginsengs efficacy. The potential health effects of ginsenosides that are discussed in this chapter include anticarcinogenic, immunomodulatory, anti-inflammatory, antiallergic, antiatherosclerotic, antihypertensive, and antidiabetic effects as well as antistress activity and effects on the central nervous system. Ginsensoides can be metabolized in the stomach (acid hydrolysis) and in the gastrointestinal tract (bacterial hydrolysis) or transformed to other ginsenosides by drying and steaming of ginseng to more bioavailable and bioactive ginsenosides. The metabolization and transformation of intact ginsenosides, which seems to play an important role for their potential health effects, are discussed. Qualitative and quantitative analytical techniques for the analysis of ginsenosides are important in relation to quality control of ginseng products and plant material and for the determination of the effects of processing of plant material as well as for the determination of the metabolism and bioavailability of ginsenosides. Analytical techniques for the analysis of ginsenosides that are described in this chapter are thin-layer chromatography (TLC), high-performance liquid chromatography (HPLC) combined with various detectors, gas chromatography (GC), colorimetry, enzyme immunoassays (EIA), capillary electrophoresis (CE), nuclear magnetic resonance (NMR) spectroscopy, and spectrophotometric methods.
-eos
-  end
-
-  def test_recommend_query_failure
-    params = {}
-    get "/recommender_v1", params
-    assert last_response.status == 400
-  end
-
-  def test_recommend_query
-    params = {
-       :text => @@text
-    }
+  def test_recommender_v1_deprecation
+    params = { text: 'recommender v1 is deprecated' }
     get "/recommender_v1", params
-    assert last_response.ok?
-    recommendations = MultiJson.load(last_response.body)
-    assert_instance_of(Array, recommendations)
-    assert_equal(3, recommendations.length, msg='Failed to return 3 recommendations')
-    rec = recommendations.first
-    assert_instance_of(Hash, rec)
-    ont_acronyms = @@ontologies.map {|o| o.bring(:acronym); o.acronym }
-    assert ont_acronyms.include? rec['ontology']['acronym']
-    assert rec['annotatedClasses'].length == 0  # no classes requested
-    assert rec['numTermsMatched'] > 0
-    assert rec['numTermsTotal'] > 0
-    assert rec['numTermsTotal'] >= rec['numTermsMatched']
-    assert recommendations[0]['score'].to_i >= recommendations[1]['score'].to_i
-    assert recommendations[1]['score'].to_i >= recommendations[2]['score'].to_i
+    assert_equal 410, last_response.status
   end
-
 end