diff --git a/app/models/prefill_description.rb b/app/models/prefill_description.rb
index 3242f5481..a9f5514ce 100644
--- a/app/models/prefill_description.rb
+++ b/app/models/prefill_description.rb
@@ -30,6 +30,15 @@ class PrefillDescription < SimpleDelegator
     @prefill_link ||= commencer_url({ path: path }.merge(prefilled_champs_for_link))
   end
 
+  def prefill_query
+    @prefill_query ||=
+      <<~TEXT
+        curl --request POST '#{api_public_v1_dossiers_url(self)}' \\
+             --header 'Content-Type: application/json' \\
+             --data '{#{prefilled_champs_for_query}}'
+      TEXT
+  end
+
   def prefilled_champs
     @prefilled_champs ||= active_fillable_public_types_de_champ.where(id: selected_type_de_champ_ids)
   end
diff --git a/app/views/prefill_descriptions/_prefill_query.html.haml b/app/views/prefill_descriptions/_prefill_query.html.haml
new file mode 100644
index 000000000..180ff7e15
--- /dev/null
+++ b/app/views/prefill_descriptions/_prefill_query.html.haml
@@ -0,0 +1,14 @@
+= turbo_frame_tag "#{dom_id(prefill_description)}_query" do
+
+  - if prefill_description.prefilled_champs.any?
+
+    = render Dsfr::CalloutComponent.new(title: t("views.prefill_descriptions.edit.prefill_query_title"), theme: :success, icon: "fr-icon-code-box-fill") do |c|
+      - c.with_body do
+        = t("views.prefill_descriptions.edit.prefill_query_info")
+        %pre
+          %code.code-block
+            = prefill_description.prefill_query
+            %br
+            = t("views.prefill_descriptions.edit.prefill_query_response_html", url: commencer_url(prefill_description.path, prefill_token: "faketoken"))
+      - c.with_bottom do
+        = render Dsfr::CopyButtonComponent.new(title: t("views.prefill_descriptions.edit.prefill_query_copy"), text: prefill_description.prefill_query)
diff --git a/app/views/prefill_descriptions/edit.html.haml b/app/views/prefill_descriptions/edit.html.haml
index cba0b4dda..4557df0b4 100644
--- a/app/views/prefill_descriptions/edit.html.haml
+++ b/app/views/prefill_descriptions/edit.html.haml
@@ -17,3 +17,5 @@
   = render "types_de_champs", prefill_description: @prefill_description
 
   = render "prefill_link", prefill_description: @prefill_description
+
+  = render "prefill_query", prefill_description: @prefill_description
diff --git a/app/views/prefill_descriptions/update.turbo_stream.haml b/app/views/prefill_descriptions/update.turbo_stream.haml
index 711bdeceb..99f95c595 100644
--- a/app/views/prefill_descriptions/update.turbo_stream.haml
+++ b/app/views/prefill_descriptions/update.turbo_stream.haml
@@ -3,3 +3,6 @@
 
 = turbo_stream.replace "#{dom_id(@prefill_description)}_url" do
   = render "prefill_link", prefill_description: @prefill_description
+
+= turbo_stream.replace "#{dom_id(@prefill_description)}_query" do
+  = render "prefill_query", prefill_description: @prefill_description
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 57f37109d..becadfc11 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -137,6 +137,10 @@ en:
         prefill_link_info: Use the button to copy the link, then remplace the values with your data.
         prefill_link_too_long: Warning, the prefill link is too long and may not work on all browsers.
         prefill_link_copy: Copy prefill link
+        prefill_query_title: Prefill query (POST)
+        prefill_query_info: Use the button to copy the query, then remplace the values with your data.
+        prefill_query_response_html: '# Response:<br># {"dossier_url":"%{url}"}'
+        prefill_query_copy: Copy prefill query
     registrations:
       new:
         title: "Create an account %{name}"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 2b7911679..72e24d6ca 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -130,6 +130,10 @@ fr:
         prefill_link_info: Copiez le lien grâce au bouton ci-dessous et remplacez les valeurs par les données dont vous disposez.
         prefill_link_too_long: Attention, ce lien de préremplissage est trop long et risque de ne pas fonctionner sur certains navigateurs.
         prefill_link_copy: Copier le lien de préremplissage
+        prefill_query_title: Requête de préremplissage (POST)
+        prefill_query_info: Copiez la requête grâce au bouton ci-dessous et remplacez les valeurs par les données dont vous disposez.
+        prefill_query_response_html: '# Response:<br># {"dossier_url":"%{url}"}'
+        prefill_query_copy: Copier la requête de préremplissage
     registrations:
       new:
         title: "Creation de compte sur %{name}"
diff --git a/config/routes.rb b/config/routes.rb
index 4d165b3e7..1c9fbd196 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -322,6 +322,8 @@ Rails.application.routes.draw do
       end
     end
 
+    resources :prefills, only: :show
+
     resource :feedback, only: [:create]
     get 'demarches' => 'demarches#index'
 
diff --git a/spec/controllers/prefillings_controller_spec.rb b/spec/controllers/prefillings_controller_spec.rb
index 078236f4a..ee190a424 100644
--- a/spec/controllers/prefillings_controller_spec.rb
+++ b/spec/controllers/prefillings_controller_spec.rb
@@ -77,6 +77,16 @@ describe PrefillDescriptionsController, type: :controller do
           "champ_#{type_de_champ_to_add.to_typed_id}" => I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ_to_add.type_champ}")
         }.to_query)
       end
+
+      it "includes the prefill query" do
+        type_de_champ_value = I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ.type_champ}")
+        type_de_champ_to_add_value = I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ_to_add.type_champ}")
+
+        expect(response.body).to include(api_public_v1_dossiers_path(procedure))
+        expect(response.body).to include(
+          "&quot;champ_#{type_de_champ.to_typed_id}&quot;: &quot;#{type_de_champ_value}&quot;, &quot;champ_#{type_de_champ_to_add.to_typed_id}&quot;: &quot;#{type_de_champ_to_add_value}&quot"
+        )
+      end
     end
 
     context 'when removing a type_de_champ_id' do
@@ -94,6 +104,19 @@ describe PrefillDescriptionsController, type: :controller do
           "champ_#{type_de_champ_to_remove.to_typed_id}" => I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ_to_remove.type_champ}")
         }.to_query)
       end
+
+      it "includes the prefill query" do
+        type_de_champ_value = I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ.type_champ}")
+        type_de_champ_to_remove_value = I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ_to_remove.type_champ}")
+
+        expect(response.body).to include(api_public_v1_dossiers_path(procedure))
+        expect(response.body).to include(
+          "&quot;champ_#{type_de_champ.to_typed_id}&quot;: &quot;#{type_de_champ_value}&quot;"
+        )
+        expect(response.body).not_to include(
+          "&quot;champ_#{type_de_champ_to_remove.to_typed_id}&quot;: &quot;#{type_de_champ_to_remove_value}&quot;"
+        )
+      end
     end
 
     context 'when removing the last type de champ' do
@@ -105,6 +128,10 @@ describe PrefillDescriptionsController, type: :controller do
       it "does not include the prefill URL" do
         expect(response.body).not_to include(commencer_path(path: procedure.path))
       end
+
+      it "does not include the prefill query" do
+        expect(response.body).not_to include(api_public_v1_dossiers_path(procedure))
+      end
     end
   end
 end
diff --git a/spec/models/prefill_description_spec.rb b/spec/models/prefill_description_spec.rb
index 5ae5a327d..99cd40691 100644
--- a/spec/models/prefill_description_spec.rb
+++ b/spec/models/prefill_description_spec.rb
@@ -100,4 +100,23 @@ RSpec.describe PrefillDescription, type: :model do
       )
     end
   end
+
+  describe '#prefill_query' do
+    let(:procedure) { create(:procedure) }
+    let(:type_de_champ) { create(:type_de_champ_text, procedure: procedure) }
+    let(:prefill_description) { described_class.new(procedure) }
+    let(:expected_query) do
+      <<~TEXT
+        curl --request POST '#{api_public_v1_dossiers_url(procedure)}' \\
+             --header 'Content-Type: application/json' \\
+             --data '{"champ_#{type_de_champ.to_typed_id}": "#{I18n.t("views.prefill_descriptions.edit.examples.#{type_de_champ.type_champ}")}"}'
+      TEXT
+    end
+
+    before { prefill_description.update(selected_type_de_champ_ids: [type_de_champ.id]) }
+
+    it "builds the query to create a new prefilled dossier" do
+      expect(prefill_description.prefill_query).to eq(expected_query)
+    end
+  end
 end
diff --git a/spec/system/integrateurs/procedure_prefilling_spec.rb b/spec/system/integrateurs/procedure_prefilling_spec.rb
index 59cabefb3..968f98e5b 100644
--- a/spec/system/integrateurs/procedure_prefilling_spec.rb
+++ b/spec/system/integrateurs/procedure_prefilling_spec.rb
@@ -11,11 +11,12 @@ describe 'As an integrator:', js: true do
     expect(page).to have_content(type_de_champ.description)
   end
 
-  scenario 'I can select champs to prefill' do
+  scenario 'I can select champs to prefill and get prefill link and prefill query' do
     click_on 'Ajouter'
 
     prefill_description = PrefillDescription.new(procedure)
     prefill_description.update(selected_type_de_champ_ids: [type_de_champ.id.to_s])
     expect(page).to have_content(prefill_description.prefill_link)
+    expect(page).to have_content(prefill_description.prefill_query.gsub("\n    ", "").delete("\n"))
   end
 end