diff --git a/src/citrine/__version__.py b/src/citrine/__version__.py
index d1a7f1e0d..62ee17b83 100644
--- a/src/citrine/__version__.py
+++ b/src/citrine/__version__.py
@@ -1 +1 @@
-__version__ = "3.12.0"
+__version__ = "3.13.0"
diff --git a/src/citrine/informatics/feature_effects.py b/src/citrine/informatics/feature_effects.py
index 947ba021d..d0cd04d6e 100644
--- a/src/citrine/informatics/feature_effects.py
+++ b/src/citrine/informatics/feature_effects.py
@@ -51,7 +51,10 @@ class FeatureEffects(Resource):
 
     @classmethod
     def _pre_build(cls, data: dict) -> Dict:
-        shapley = data["result"]
+        shapley = data.get("result")
+        if not shapley:
+            return data
+
         material_ids = shapley["materials"]
 
         outputs = []
@@ -73,4 +76,7 @@ def _pre_build(cls, data: dict) -> Dict:
     @property
     def as_dict(self) -> Dict[str, Dict[str, Dict[UUID, float]]]:
         """Presents the feature effects as a dictionary by output."""
-        return {output.output: output.feature_dict for output in self.outputs}
+        if self.outputs:
+            return {output.output: output.feature_dict for output in self.outputs}
+        else:
+            return {}
diff --git a/src/citrine/resources/predictor.py b/src/citrine/resources/predictor.py
index 08b69aaf0..f101a7366 100644
--- a/src/citrine/resources/predictor.py
+++ b/src/citrine/resources/predictor.py
@@ -196,6 +196,14 @@ def rename(self,
         entity = self.session.put_resource(path, json, version=self._api_version)
         return self.build(entity)
 
+    def generate_feature_effects(self,
+                                 uid: Union[UUID, str],
+                                 *,
+                                 version: Union[int, str] = MOST_RECENT_VER) -> GraphPredictor:
+        path = self._construct_path(uid, version, "shapley/generate")
+        self.session.put_resource(path, {}, version=self._api_version)
+        return self.get(uid, version=version)
+
     def delete(self, uid: Union[UUID, str], *, version: Union[int, str] = MOST_RECENT_VER):
         """Predictor versions cannot be deleted at this time."""
         msg = "Predictor versions cannot be deleted. Use 'archive_version' instead."
@@ -578,6 +586,26 @@ def rename(self,
             uid, version=version, name=name, description=description
         )
 
+    def generate_feature_effects_async(self,
+                                       uid: Union[UUID, str],
+                                       *,
+                                       version: Union[int, str]) -> GraphPredictor:
+        """Begin generation of feature effects.
+
+        version can be any numerical version (which exists), "latest", or "most_recent". Although
+        note that this will fail if the predictor is not already trained.
+
+        Feature effects are automatically generated for all new predictors after a successful
+        training as of the end of 2024. This call allows either regenerating those values, or
+        generating them for older predictors.
+
+        This call just begins the process; generation usually takes a few minutes, but can take
+        much longer. As soon as the call completes, the old values will be inaccessible. To wait
+        for the generation to complete, and to retrieve the new values once they're ready, use
+        GraphPredictor.feature_effects.
+        """
+        return self._versions_collection.generate_feature_effects(uid, version=version)
+
     def delete(self, uid: Union[UUID, str]):
         """Predictors cannot be deleted at this time."""
         msg = "Predictors cannot be deleted. Use 'archive_version' or 'archive_root' instead."
diff --git a/tests/informatics/test_predictors.py b/tests/informatics/test_predictors.py
index 570c96514..da98b2717 100644
--- a/tests/informatics/test_predictors.py
+++ b/tests/informatics/test_predictors.py
@@ -508,3 +508,21 @@ def test_feature_effects(graph_predictor):
         f"/versions/{graph_predictor.version}/shapley/query"
     assert session.calls == [FakeCall(method='POST', path=expected_path, json={})]
     assert fe.as_dict == feature_effects_as_dict
+
+
+def test_feature_effects_in_progress(graph_predictor):
+    feature_effects_response = FeatureEffectsResponseFactory(metadata__status="INPROGRESS", result=None)
+
+    session = FakeSession()
+    session.set_response(feature_effects_response)
+    
+    graph_predictor._session = session
+    graph_predictor._project_id = uuid.uuid4()
+
+    fe = graph_predictor.feature_effects
+
+    expected_path = f"/projects/{graph_predictor._project_id}/predictors/{graph_predictor.uid}" + \
+        f"/versions/{graph_predictor.version}/shapley/query"
+    assert session.calls == [FakeCall(method='POST', path=expected_path, json={})]
+    assert fe.outputs is None
+    assert fe.as_dict == {}
diff --git a/tests/resources/test_predictor.py b/tests/resources/test_predictor.py
index b877f1c62..e8fff5209 100644
--- a/tests/resources/test_predictor.py
+++ b/tests/resources/test_predictor.py
@@ -21,8 +21,8 @@
     FakeSession
 )
 from tests.utils.factories import (
-        AsyncDefaultPredictorResponseFactory, AsyncDefaultPredictorResponseMetadataFactory,
-        TableDataSourceDataFactory
+    AsyncDefaultPredictorResponseFactory, AsyncDefaultPredictorResponseMetadataFactory,
+    FeatureEffectsResponseFactory, TableDataSourceDataFactory
 )
 
 
@@ -734,6 +734,7 @@ def test_rename_name_only(valid_graph_predictor_data):
     expected_payload = {"name": new_name, "description": None}
     assert session.calls == [FakeCall(method="PUT", path=f"{versions_path}/{pred_version}/rename", json=expected_payload)]
 
+
 def test_rename_description_only(valid_graph_predictor_data):
     pred_id = valid_graph_predictor_data["id"]
     pred_version = valid_graph_predictor_data["metadata"]["version"]
@@ -751,3 +752,20 @@ def test_rename_description_only(valid_graph_predictor_data):
     versions_path = _PredictorVersionCollection._path_template.format(project_id=pc.project_id, uid=pred_id)
     expected_payload = {"name": None, "description": new_description}
     assert session.calls == [FakeCall(method="PUT", path=f"{versions_path}/{pred_version}/rename", json=expected_payload)]
+
+
+def test_generate_shapley(valid_graph_predictor_data):
+    pred_id = valid_graph_predictor_data["id"]
+    pred_version = valid_graph_predictor_data["metadata"]["version"]
+    session = FakeSession()
+    pc = PredictorCollection(uuid.uuid4(), session)
+    
+    fe_response = FeatureEffectsResponseFactory(metadata__status="INPROGRESS", result=None)
+    session.set_responses(fe_response, valid_graph_predictor_data)
+
+    versions_path = _PredictorVersionCollection._path_template.format(project_id=pc.project_id, uid=pred_id)
+    pred = pc.generate_feature_effects_async(pred_id, version=pred_version)
+    assert session.calls == [
+        FakeCall(method="PUT", path=f"{versions_path}/{pred_version}/shapley/generate", json={}),
+        FakeCall(method="GET", path=f"{versions_path}/{pred_version}")
+    ]
diff --git a/tests/utils/factories.py b/tests/utils/factories.py
index 83cf1fee4..d6d5c989a 100644
--- a/tests/utils/factories.py
+++ b/tests/utils/factories.py
@@ -893,6 +893,9 @@ class FeatureEffectsResponseFactory(factory.DictFactory):
 
 
 def _expand_condensed(result_obj):
+    if not result_obj:
+        return None
+
     whole_dict = {}
     for output, feature_dict in result_obj["outputs"].items():
         whole_dict[output] = {}