diff --git a/app/serializers/procedure_serializer.rb b/app/serializers/procedure_serializer.rb
index c243851c1..c2608a9ff 100644
--- a/app/serializers/procedure_serializer.rb
+++ b/app/serializers/procedure_serializer.rb
@@ -17,6 +17,7 @@ class ProcedureSerializer < ActiveModel::Serializer
   has_many :types_de_champ, serializer: TypeDeChampSerializer
   has_many :types_de_champ_private, serializer: TypeDeChampSerializer
   has_many :types_de_piece_justificative
+  belongs_to :service, serializer: ServiceSerializer
 
   def archived_at
     object.archived_at&.in_time_zone('UTC')
diff --git a/app/serializers/service_serializer.rb b/app/serializers/service_serializer.rb
new file mode 100644
index 000000000..460c580df
--- /dev/null
+++ b/app/serializers/service_serializer.rb
@@ -0,0 +1,9 @@
+class ServiceSerializer < ActiveModel::Serializer
+  attributes :id, :email
+  attribute :nom, key: :name
+  attribute :type_organisme, key: :type_organization
+  attribute :organisme, key: :organization
+  attribute :telephone, key: :phone
+  attribute :horaires, key: :schedule
+  attribute :adresse, key: :address
+end
diff --git a/spec/controllers/api/v1/procedures_controller_spec.rb b/spec/controllers/api/v1/procedures_controller_spec.rb
index 3041ec6de..87b8d2410 100644
--- a/spec/controllers/api/v1/procedures_controller_spec.rb
+++ b/spec/controllers/api/v1/procedures_controller_spec.rb
@@ -25,7 +25,7 @@ describe API::V1::ProceduresController, type: :controller do
       it { is_expected.to have_http_status(200) }
 
       describe 'body' do
-        let(:procedure) { create(:procedure, :with_type_de_champ, administrateur: admin) }
+        let(:procedure) { create(:procedure, :with_type_de_champ, :with_service, administrateur: admin) }
         let(:response) { get :show, params: { id: procedure.id, token: token } }
 
         subject { JSON.parse(response.body, symbolize_names: true)[:procedure] }
@@ -51,6 +51,21 @@ describe API::V1::ProceduresController, type: :controller do
           it { expect(subject[:order_place]).to eq(champ.order_place) }
           it { expect(subject[:description]).to eq(champ.description) }
         end
+
+        describe 'service' do
+          subject { super()[:service] }
+
+          let(:service) { procedure.service }
+
+          it { expect(subject[:id]).to eq(service.id) }
+          it { expect(subject[:email]).to eq(service.email) }
+          it { expect(subject[:name]).to eq(service.nom) }
+          it { expect(subject[:type_organization]).to eq(service.type_organisme) }
+          it { expect(subject[:organization]).to eq(service.organisme) }
+          it { expect(subject[:phone]).to eq(service.telephone) }
+          it { expect(subject[:schedule]).to eq(service.horaires) }
+          it { expect(subject[:address]).to eq(service.adresse) }
+        end
       end
     end
   end