diff --git a/pymisp/__init__.py b/pymisp/__init__.py
index b93f00e..c944af5 100644
--- a/pymisp/__init__.py
+++ b/pymisp/__init__.py
@@ -33,7 +33,7 @@ try:
                             MISPNoticelist, MISPObjectTemplate, MISPSharingGroup, MISPRole, MISPServer, MISPFeed,
                             MISPEventDelegation, MISPUserSetting, MISPInbox, MISPEventBlocklist, MISPOrganisationBlocklist,
                             MISPEventReport, MISPGalaxyCluster, MISPGalaxyClusterElement, MISPGalaxyClusterRelation,
-                            MISPCorrelationExclusion, MISPGalaxy)
+                            MISPCorrelationExclusion, MISPGalaxy, MISPDecayingModel)
     from .tools import AbstractMISPObjectGenerator  # noqa
     from .tools import Neo4j  # noqa
     from .tools import stix  # noqa
diff --git a/pymisp/api.py b/pymisp/api.py
index 5129f4e..cd2a74a 100644
--- a/pymisp/api.py
+++ b/pymisp/api.py
@@ -25,7 +25,7 @@ from .mispevent import MISPEvent, MISPAttribute, MISPSighting, MISPLog, MISPObje
     MISPGalaxy, MISPNoticelist, MISPObjectReference, MISPObjectTemplate, MISPSharingGroup, \
     MISPRole, MISPServer, MISPFeed, MISPEventDelegation, MISPCommunity, MISPUserSetting, \
     MISPInbox, MISPEventBlocklist, MISPOrganisationBlocklist, MISPEventReport, \
-    MISPGalaxyCluster, MISPGalaxyClusterRelation, MISPCorrelationExclusion
+    MISPGalaxyCluster, MISPGalaxyClusterRelation, MISPCorrelationExclusion, MISPDecayingModel
 from .abstract import pymisp_json_default, MISPTag, AbstractMISP, describe_types
 
 
@@ -2420,6 +2420,49 @@ class PyMISP:
 
     # ## END Role ###
 
+    # ## BEGIN Decaying Models ###
+
+    def update_decaying_models(self) -> Dict:
+        """Update all the Decaying models"""
+        response = self._prepare_request('POST', 'decayingModel/update')
+        return self._check_json_response(response)
+
+    def decaying_models(self, pythonify: bool = False) -> Union[Dict, List[MISPDecayingModel]]:
+        """Get all the decaying models
+
+        :param pythonify: Returns a list of PyMISP Objects instead of the plain json output
+        """
+        r = self._prepare_request('GET', 'decayingModel/index')
+        models = self._check_json_response(r)
+        if not (self.global_pythonify or pythonify) or 'errors' in models:
+            return models
+        to_return = []
+        for model in models:
+            n = MISPDecayingModel()
+            n.from_dict(**model)
+            to_return.append(n)
+        return to_return
+
+    def enable_decaying_model(self, decaying_model: Union[MISPDecayingModel, int, str]) -> Dict:
+        """Enable a decaying Model"""
+        if isinstance(decaying_model, MISPDecayingModel):
+            decaying_model_id = decaying_model.id
+        else:
+            decaying_model_id = int(decaying_model)
+        response = self._prepare_request('POST', f'decayingModel/enable/{decaying_model_id}')
+        return self._check_json_response(response)
+
+    def disable_decaying_model(self, decaying_model: Union[MISPDecayingModel, int, str]) -> Dict:
+        """Disable a decaying Model"""
+        if isinstance(decaying_model, MISPDecayingModel):
+            decaying_model_id = decaying_model.id
+        else:
+            decaying_model_id = int(decaying_model)
+        response = self._prepare_request('POST', f'decayingModel/disable/{decaying_model_id}')
+        return self._check_json_response(response)
+
+    # ## END Decaying Models ###
+
     # ## BEGIN Search methods ###
 
     def search(self, controller: str = 'events', return_format: str = 'json',
diff --git a/pymisp/mispevent.py b/pymisp/mispevent.py
index d1847c4..3bc9d13 100644
--- a/pymisp/mispevent.py
+++ b/pymisp/mispevent.py
@@ -2349,3 +2349,19 @@ class MISPOrganisationBlocklist(AbstractMISP):
 
     def __repr__(self):
         return f'<{self.__class__.__name__}(org_uuid={self.org_uuid}'
+
+
+class MISPDecayingModel(AbstractMISP):
+
+    def __init__(self, **kwargs: Dict) -> None:
+        super().__init__(**kwargs)
+        self.uuid: str
+        self.id: int
+
+    def from_dict(self, **kwargs):
+        if 'DecayingModel' in kwargs:
+            kwargs = kwargs['DecayingModel']
+        super().from_dict(**kwargs)
+
+    def __repr__(self):
+        return f'<{self.__class__.__name__}(uuid={self.uuid})>'
diff --git a/tests/testlive_comprehensive.py b/tests/testlive_comprehensive.py
index 4e9370a..b12d216 100644
--- a/tests/testlive_comprehensive.py
+++ b/tests/testlive_comprehensive.py
@@ -679,6 +679,31 @@ class TestComprehensive(unittest.TestCase):
             self.admin_misp_connector.delete_event(first)
             self.admin_misp_connector.delete_event(second)
 
+    def test_search_decay(self):
+        # Creating event 1
+        first = self.create_simple_event()
+        first.add_attribute('ip-dst', '8.8.8.8')
+        first.publish()
+        try:
+            r = self.admin_misp_connector.update_decaying_models()
+            self.assertTrue(r['success'], r)
+            simple_decaying_model = None
+            models = self.admin_misp_connector.decaying_models(pythonify=True)
+            for model in models:
+                if model.name == 'NIDS Simple Decaying Model':
+                    simple_decaying_model = model
+            self.assertTrue(simple_decaying_model, models)
+            self.admin_misp_connector.enable_decaying_model(simple_decaying_model)
+            # TODO: check the response, it is curently an empty list
+            first = self.pub_misp_connector.add_event(first, pythonify=True)
+            result = self.pub_misp_connector.search('attributes', to_ids=1, includeDecayScore=True, pythonify=True)
+            self.assertTrue(result[0].decay_score, result[0].to_json(indent=2))
+            self.admin_misp_connector.disable_decaying_model(simple_decaying_model)
+            # TODO: check the response, it is curently a list of all the models
+        finally:
+            # Delete event
+            self.admin_misp_connector.delete_event(first)
+
     def test_default_distribution(self):
         '''The default distributions on the VM are This community only for the events and Inherit from event for attr/obj)'''
         first = self.create_simple_event()