diff --git a/app/experimenter/docs/openapi-schema.json b/app/experimenter/docs/openapi-schema.json
index 955d83e329..92fefea1a8 100644
--- a/app/experimenter/docs/openapi-schema.json
+++ b/app/experimenter/docs/openapi-schema.json
@@ -3040,6 +3040,10 @@
             "type": "string",
             "readOnly": true
           },
+          "isRollout": {
+            "type": "string",
+            "readOnly": true
+          },
           "bucketConfig": {
             "type": "object",
             "properties": {
diff --git a/app/experimenter/docs/swagger-ui.html b/app/experimenter/docs/swagger-ui.html
index 0f9ffa981d..402f6a8cc9 100644
--- a/app/experimenter/docs/swagger-ui.html
+++ b/app/experimenter/docs/swagger-ui.html
@@ -3052,6 +3052,10 @@
             "type": "string",
             "readOnly": true
           },
+          "isRollout": {
+            "type": "string",
+            "readOnly": true
+          },
           "bucketConfig": {
             "type": "object",
             "properties": {
diff --git a/app/experimenter/experiments/api/v6/serializers.py b/app/experimenter/experiments/api/v6/serializers.py
index 93116b9618..d3698fade6 100644
--- a/app/experimenter/experiments/api/v6/serializers.py
+++ b/app/experimenter/experiments/api/v6/serializers.py
@@ -113,6 +113,7 @@ class NimbusExperimentSerializer(serializers.ModelSerializer):
     userFacingName = serializers.ReadOnlyField(source="name")
     userFacingDescription = serializers.ReadOnlyField(source="public_description")
     isEnrollmentPaused = serializers.ReadOnlyField(source="is_paused")
+    isRollout = serializers.ReadOnlyField(source="is_rollout")
     bucketConfig = NimbusBucketRangeSerializer(source="bucket_range")
     featureIds = serializers.SerializerMethodField()
     probeSets = serializers.ReadOnlyField(default=[])
@@ -138,6 +139,7 @@ class Meta:
             "userFacingName",
             "userFacingDescription",
             "isEnrollmentPaused",
+            "isRollout",
             "bucketConfig",
             "featureIds",
             "probeSets",
diff --git a/app/experimenter/experiments/tests/api/v6/test_serializers.py b/app/experimenter/experiments/tests/api/v6/test_serializers.py
index 4f89aaecf0..565b78373a 100644
--- a/app/experimenter/experiments/tests/api/v6/test_serializers.py
+++ b/app/experimenter/experiments/tests/api/v6/test_serializers.py
@@ -51,6 +51,7 @@ def test_expected_schema_with_desktop_single_feature(self):
                 "endDate": experiment.end_date.isoformat().replace("+00:00", "Z"),
                 "id": experiment.slug,
                 "isEnrollmentPaused": True,
+                "isRollout": False,
                 "proposedDuration": experiment.proposed_duration,
                 "proposedEnrollment": experiment.proposed_enrollment,
                 "referenceBranch": experiment.reference_branch.slug,
@@ -117,7 +118,6 @@ def test_expected_schema_with_desktop_multifeature(self):
             primary_outcomes=["foo", "bar", "baz"],
             secondary_outcomes=["quux", "xyzzy"],
         )
-
         serializer = NimbusExperimentSerializer(experiment)
         experiment_data = serializer.data.copy()
         bucket_data = dict(experiment_data.pop("bucketConfig"))
@@ -142,6 +142,7 @@ def test_expected_schema_with_desktop_multifeature(self):
                 "endDate": experiment.end_date.isoformat().replace("+00:00", "Z"),
                 "id": experiment.slug,
                 "isEnrollmentPaused": True,
+                "isRollout": False,
                 "proposedDuration": experiment.proposed_duration,
                 "proposedEnrollment": experiment.proposed_enrollment,
                 "referenceBranch": experiment.reference_branch.slug,