diff --git a/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseApiController.php b/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseApiController.php
index c66488869..3a5f78faf 100644
--- a/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseApiController.php
+++ b/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseApiController.php
@@ -332,6 +332,23 @@ final class AccompanyingCourseApiController extends ApiController
         return $this->json($accompanyingCourse->isConfidential(), Response::HTTP_OK, [], ['groups' => ['read']]);
     }
 
+    /**
+     * @Route("/api/1.0/person/accompanying-course/{id}/intensity.json", name="chill_api_person_accompanying_period_intensity")
+     * @ParamConverter("accompanyingCourse", options={"id": "id"})
+     */
+    public function toggleIntensityApi(AccompanyingPeriod $accompanyingCourse, Request $request)
+    {
+        if ($request->getMethod() === 'POST') {
+            $this->denyAccessUnlessGranted(AccompanyingPeriodVoter::TOGGLE_INTENSITY, $accompanyingCourse);
+
+            $status = $accompanyingCourse->getIntensity() == 'regular' ? 'occasional' : 'regular';
+            $accompanyingCourse->setIntensity($status);
+            $this->getDoctrine()->getManager()->flush();
+        }
+
+        return $this->json($accompanyingCourse->getIntensity(), Response::HTTP_OK, [], ['groups' => ['read']]);
+    }
+
     public function workApi($id, Request $request, string $_format): Response
     {
         return $this->addRemoveSomething(
diff --git a/src/Bundle/ChillPersonBundle/DependencyInjection/ChillPersonExtension.php b/src/Bundle/ChillPersonBundle/DependencyInjection/ChillPersonExtension.php
index 01df460e3..b7fdd4836 100644
--- a/src/Bundle/ChillPersonBundle/DependencyInjection/ChillPersonExtension.php
+++ b/src/Bundle/ChillPersonBundle/DependencyInjection/ChillPersonExtension.php
@@ -405,6 +405,16 @@ class ChillPersonExtension extends Extension implements PrependExtensionInterfac
                                 Request::METHOD_POST => \Chill\PersonBundle\Security\Authorization\AccompanyingPeriodVoter::TOGGLE_CONFIDENTIAL,
                             ],
                         ],
+                        'intensity' => [
+                            'methods' => [
+                                Request::METHOD_POST => true,
+                                Request::METHOD_GET => true,
+                            ],
+                            'controller_action' => 'toggleIntensityApi',
+                            'roles' => [
+                                Request::METHOD_POST => \Chill\PersonBundle\Security\Authorization\AccompanyingPeriodVoter::TOGGLE_INTENSITY,
+                            ],
+                        ],
                         'findAccompanyingPeriodsByPerson' => [
                             'path' => '/by-person/{person_id}.{_format}',
                             'controller_action' => 'getAccompanyingPeriodsByPerson',
diff --git a/src/Bundle/ChillPersonBundle/chill.api.specs.yaml b/src/Bundle/ChillPersonBundle/chill.api.specs.yaml
index cd242e1c0..e6fefa5df 100644
--- a/src/Bundle/ChillPersonBundle/chill.api.specs.yaml
+++ b/src/Bundle/ChillPersonBundle/chill.api.specs.yaml
@@ -1177,6 +1177,44 @@ paths:
         422:
           description: "object with validation errors"
 
+  /1.0/person/accompanying-course/{id}/intensity.json:
+    post:
+      tags:
+        - person
+      summary: "Toggle intensity status of accompanying course"
+      parameters:
+        - name: id
+          in: path
+          required: true
+          description: The accompanying period's id
+          schema:
+            type: integer
+            format: integer
+            minimum: 1
+      requestBody:
+        description: "Intensity toggle"
+        required: true
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                type:
+                  type: string
+                  enum:
+                    - "accompanying_period"
+                intensity:
+                  type: string
+      responses:
+        401:
+          description: "Unauthorized"
+        404:
+          description: "Not found"
+        200:
+          description: "OK"
+        422:
+          description: "object with validation errors"
+
   /1.0/person/accompanying-course/by-person/{person_id}.json:
     get:
       tags: