diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index 12c9f45e4c462bcd43e2940ae78c0ed04a5f8092..a60813a36a7e8dc25d3ffb9df440b0c431ca7524 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -865,6 +865,10 @@ def steps
        Gitlab::Ci::Build::Step.from_after_script(self)].compact
     end
 
+    def runtime_hooks
+      Gitlab::Ci::Build::Hook.from_hooks(self)
+    end
+
     def image
       Gitlab::Ci::Build::Image.from_image(self)
     end
diff --git a/lib/api/entities/ci/job_request/hook.rb b/lib/api/entities/ci/job_request/hook.rb
new file mode 100644
index 0000000000000000000000000000000000000000..2d155bb1c4585bdfb423ffd878a6b3d647cac680
--- /dev/null
+++ b/lib/api/entities/ci/job_request/hook.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module API
+  module Entities
+    module Ci
+      module JobRequest
+        class Hook < Grape::Entity
+          expose :name, :script
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/entities/ci/job_request/response.rb b/lib/api/entities/ci/job_request/response.rb
index 9de415ebacbb6fac41ad14c5ad43d882142b1abe..cfdbeed79b6daa8c4a26d1b83c96ba583f58856b 100644
--- a/lib/api/entities/ci/job_request/response.rb
+++ b/lib/api/entities/ci/job_request/response.rb
@@ -23,6 +23,9 @@ class Response < Grape::Entity
 
           expose :runner_variables, as: :variables
           expose :steps, using: Entities::Ci::JobRequest::Step
+          expose :runtime_hooks, as: :hooks,
+                                 using: Entities::Ci::JobRequest::Hook,
+                                 if: ->(job) { ::Feature.enabled?(:ci_hooks_pre_get_sources_script, job.project) }
           expose :image, using: Entities::Ci::JobRequest::Image
           expose :services, using: Entities::Ci::JobRequest::Service
           expose :artifacts, using: Entities::Ci::JobRequest::Artifacts
diff --git a/lib/gitlab/ci/build/hook.rb b/lib/gitlab/ci/build/hook.rb
new file mode 100644
index 0000000000000000000000000000000000000000..b731228678c569723bb411c7dd43bbe48ee04758
--- /dev/null
+++ b/lib/gitlab/ci/build/hook.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    module Build
+      class Hook
+        attr_reader :name, :script
+
+        class << self
+          def from_hooks(job)
+            job.options[:hooks].to_a.map do |name, script|
+              new(name.to_s, script)
+            end
+          end
+        end
+
+        def initialize(name, script)
+          @name = name
+          @script = script
+        end
+      end
+    end
+  end
+end
diff --git a/spec/factories/ci/builds.rb b/spec/factories/ci/builds.rb
index b88d6b5fda46ef03a992b1d69285ff296ffcf6c4..eccaa76a52a6dc0a37063079271a1ca8e4a56bc4 100644
--- a/spec/factories/ci/builds.rb
+++ b/spec/factories/ci/builds.rb
@@ -545,9 +545,12 @@
       options do
         {
           image: { name: 'image:1.0', entrypoint: '/bin/sh' },
-          services: ['postgres', { name: 'docker:stable-dind', entrypoint: '/bin/sh', command: 'sleep 30', alias: 'docker' }, { name: 'mysql:latest', variables: { MYSQL_ROOT_PASSWORD: 'root123.' } }],
+          services: ['postgres',
+                     { name: 'docker:stable-dind', entrypoint: '/bin/sh', command: 'sleep 30', alias: 'docker' },
+                     { name: 'mysql:latest', variables: { MYSQL_ROOT_PASSWORD: 'root123.' } }],
           script: %w(echo),
           after_script: %w(ls date),
+          hooks: { pre_get_sources_script: ["echo 'hello pre_get_sources_script'"] },
           artifacts: {
             name: 'artifacts_file',
             untracked: false,
diff --git a/spec/lib/gitlab/ci/build/hook_spec.rb b/spec/lib/gitlab/ci/build/hook_spec.rb
new file mode 100644
index 0000000000000000000000000000000000000000..6ed40a44c97d2283107caf7cb80f3a91291d7886
--- /dev/null
+++ b/spec/lib/gitlab/ci/build/hook_spec.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Build::Hook, feature_category: :pipeline_authoring do
+  let_it_be(:build1) do
+    FactoryBot.build(:ci_build,
+                     options: { hooks: { pre_get_sources_script: ["echo 'hello pre_get_sources_script'"] } })
+  end
+
+  describe '.from_hooks' do
+    subject(:from_hooks) { described_class.from_hooks(build1) }
+
+    it 'initializes and returns hooks' do
+      expect(from_hooks.size).to eq(1)
+      expect(from_hooks[0].name).to eq('pre_get_sources_script')
+      expect(from_hooks[0].script).to eq(["echo 'hello pre_get_sources_script'"])
+    end
+  end
+end
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 22fa020ad025537bf3108bec3201bf31427f7784..c03bb61f1f8b2979b49916c7976dda69d3d47172 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -5616,4 +5616,19 @@ def run_job_without_exception
       end
     end
   end
+
+  describe '#runtime_hooks' do
+    let(:build1) do
+      FactoryBot.build(:ci_build,
+                       options: { hooks: { pre_get_sources_script: ["echo 'hello pre_get_sources_script'"] } })
+    end
+
+    subject(:runtime_hooks) { build1.runtime_hooks }
+
+    it 'returns an array of hook objects' do
+      expect(runtime_hooks.size).to eq(1)
+      expect(runtime_hooks[0].name).to eq('pre_get_sources_script')
+      expect(runtime_hooks[0].script).to eq(["echo 'hello pre_get_sources_script'"])
+    end
+  end
 end
diff --git a/spec/requests/api/ci/runner/jobs_request_post_spec.rb b/spec/requests/api/ci/runner/jobs_request_post_spec.rb
index 1cb4cc93ea569f96f6c42d1a396ce00f4f7fd282..232c339de57b584920a1e23dd0044fb4cd8ee342 100644
--- a/spec/requests/api/ci/runner/jobs_request_post_spec.rb
+++ b/spec/requests/api/ci/runner/jobs_request_post_spec.rb
@@ -175,6 +175,10 @@
                'allow_failure' => true }]
           end
 
+          let(:expected_hooks) do
+            [{ 'name' => 'pre_get_sources_script', 'script' => ["echo 'hello pre_get_sources_script'"] }]
+          end
+
           let(:expected_variables) do
             [{ 'key' => 'CI_JOB_NAME', 'value' => 'spinach', 'public' => true, 'masked' => false },
              { 'key' => 'CI_JOB_STAGE', 'value' => 'test', 'public' => true, 'masked' => false },
@@ -230,6 +234,7 @@
                   'variables' => [{ 'key' => 'MYSQL_ROOT_PASSWORD', 'value' => 'root123.' }], 'pull_policy' => nil }
               ])
             expect(json_response['steps']).to eq(expected_steps)
+            expect(json_response['hooks']).to eq(expected_hooks)
             expect(json_response['artifacts']).to eq(expected_artifacts)
             expect(json_response['cache']).to match(expected_cache)
             expect(json_response['variables']).to include(*expected_variables)
@@ -769,6 +774,19 @@
               end
             end
           end
+
+          context 'when the FF ci_hooks_pre_get_sources_script is disabled' do
+            before do
+              stub_feature_flags(ci_hooks_pre_get_sources_script: false)
+            end
+
+            it 'does not return the pre_get_sources_script' do
+              request_job
+
+              expect(response).to have_gitlab_http_status(:created)
+              expect(json_response).not_to have_key('hooks')
+            end
+          end
         end
 
         describe 'port support' do