diff --git a/controllers/federation_controller.rb b/controllers/federation_controller.rb
new file mode 100644
index 000000000..000ac81bd
--- /dev/null
+++ b/controllers/federation_controller.rb
@@ -0,0 +1,72 @@
+require 'faraday'
+
+class FederationController < ApplicationController
+
+  GATEWAY_URL = "https://terminology.services.base4nfdi.de/api-gateway"
+  GATEWAY_CONNECTION = Faraday.new(url: GATEWAY_URL) do |conn|
+    conn.headers['Accept'] = 'application/json'
+  end
+
+
+  namespace "/api/federation" do
+
+    get'/search' do
+      query = params[:query] || params[:q]
+
+      if query.nil? || query.strip.empty?
+        error 400, "You must provide a 'query' parameter to execute a search"
+      end
+
+      gateway_params = { query: query, database: "ontoportal" }
+
+      response = GATEWAY_CONNECTION.get("search", gateway_params)
+
+      unless response.success?
+        error response.status, "API Gateway error: #{response.body}"
+      end
+
+      gateway_response_data = JSON.parse(response.body)
+      results = gateway_response_data.is_a?(Array) ? gateway_response_data : []
+
+      docs = []
+
+      results.each do |item|                   
+        acronym      = item["ontology"]                                                       
+        ontology_iri = item["ontology_iri"] || item["source"].to_s + "/ontologies/" + acronym.to_s                                                                                          
+                                                                                              
+        doc = {                                                                               
+          id:         item["@id"] || item["iri"],                                             
+          prefLabel:  item["label"],                                                          
+          synonym:    item["synonyms"] || [],                                                 
+          definition: item["descriptions"] || [],                                             
+          obsolete:   item["obsolete"] || false,                                              
+          matchType:  "",                 
+          ontologyType: "",                                           
+          ontology_rank: 0.0                                                                  
+        }   
+
+        ontology = LinkedData::Models::Ontology.read_only(
+          id: ontology_iri,
+          acronym: acronym
+        )
+        
+        submission = LinkedData::Models::OntologySubmission.read_only(
+          id: ontology_iri ,
+          ontology: ontology
+        )
+
+        doc[:submission] = submission
+
+        instance = LinkedData::Models::Class.read_only(doc)
+        docs.push(instance)
+
+      end
+
+      total_found = results.size
+
+      reply 200, page_object(docs, total_found)
+    end
+
+  end
+
+end