diff --git a/doap.xml b/doap.xml
index 72259669..b22af3b1 100644
--- a/doap.xml
+++ b/doap.xml
@@ -863,6 +863,14 @@
             <xmpp:since>NEXT</xmpp:since>
         </xmpp:SupportedXep>
     </implements>
+    <implements>
+        <xmpp:SupportedXep>
+            <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0437.html"/>
+            <xmpp:status>complete</xmpp:status>
+            <xmpp:version>0.2.0</xmpp:version>
+            <xmpp:since>NEXT</xmpp:since>
+        </xmpp:SupportedXep>
+    </implements>
     <implements>
         <xmpp:SupportedXep>
             <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0439.html"/>
diff --git a/slixmpp/plugins/__init__.py b/slixmpp/plugins/__init__.py
index f37fdcfb..a0159ad1 100644
--- a/slixmpp/plugins/__init__.py
+++ b/slixmpp/plugins/__init__.py
@@ -109,6 +109,7 @@ __all__ = [
     'xep_0424',  # Message Retraction
     'xep_0425',  # Message Moderation
     'xep_0428',  # Message Fallback
+    'xep_0437',  # Room Activity Indicators
     'xep_0439',  # Quick Response
     'xep_0444',  # Message Reactions
 ]
diff --git a/slixmpp/plugins/xep_0437/__init__.py b/slixmpp/plugins/xep_0437/__init__.py
new file mode 100644
index 00000000..d84d18a1
--- /dev/null
+++ b/slixmpp/plugins/xep_0437/__init__.py
@@ -0,0 +1,11 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2020 Mathieu Pasquet
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+from slixmpp.plugins.base import register_plugin
+from slixmpp.plugins.xep_0437.rai import XEP_0437
+
+register_plugin(XEP_0437)
diff --git a/slixmpp/plugins/xep_0437/rai.py b/slixmpp/plugins/xep_0437/rai.py
new file mode 100644
index 00000000..c3c4d325
--- /dev/null
+++ b/slixmpp/plugins/xep_0437/rai.py
@@ -0,0 +1,67 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2020 Mathieu Pasquet
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+from typing import Iterable, Optional
+
+from slixmpp import JID
+from slixmpp.plugins import BasePlugin
+from slixmpp.stanza import Presence
+from slixmpp.xmlstream.matcher import StanzaPath
+from slixmpp.xmlstream.handler import Callback
+
+from slixmpp.plugins.xep_0437 import stanza
+
+
+class XEP_0437(BasePlugin):
+    name = 'xep_0437'
+    description = 'XEP-0437: Room Activity Indicators'
+    stanza = stanza
+    namespace = stanza.NS
+
+    def plugin_init(self):
+        stanza.register_plugins()
+        self.xmpp.register_handler(Callback(
+            'RAI Received',
+            StanzaPath("presence/rai"),
+            self._handle_rai,
+        ))
+        self.xmpp.register_handler(Callback(
+            'RAI Activity Received',
+            StanzaPath("presence/rai/activity"),
+            self._handle_rai_activity,
+        ))
+
+    def plugin_end(self):
+        self.xmpp.remove_handler('RAI received')
+        self.xmpp.remove_handler('RAI Activity received')
+
+    def _handle_rai(self, presence: Presence):
+        self.xmpp.event('room_activity_bare', presence)
+
+    def _handle_rai_activity(self, presence: Presence):
+        self.xmpp.event('room_activity', presence)
+
+    def subscribe(self, service: JID, *,
+                  pfrom: Optional[JID] = None):
+        """
+        Subscribe to room activty on a MUC service.
+        :param JID service: MUC service
+        """
+        pres = self.xmpp.make_presence(pto=service, pfrom=pfrom)
+        pres.enable('rai')
+        pres.send()
+
+    def unsubscribe(self, service: JID, *,
+                    pfrom: Optional[JID] = None):
+        """
+        Unsubscribe from room activty on a MUC service.
+        :param JID service: MUC service
+        """
+        pres = self.xmpp.make_presence(
+            pto=service, pfrom=pfrom, ptype='unavailable',
+        )
+        pres.send()
diff --git a/slixmpp/plugins/xep_0437/stanza.py b/slixmpp/plugins/xep_0437/stanza.py
new file mode 100644
index 00000000..cd3a2c84
--- /dev/null
+++ b/slixmpp/plugins/xep_0437/stanza.py
@@ -0,0 +1,47 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2020 Mathieu Pasquet
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+from typing import Iterable
+from slixmpp import JID, Presence
+from slixmpp.xmlstream import (
+    ElementBase,
+    register_stanza_plugin,
+)
+
+NS = 'urn:xmpp:rai:0'
+
+class RAI(ElementBase):
+    name = 'rai'
+    plugin_attrib = 'rai'
+    namespace = NS
+    interfaces = {'activities'}
+
+    def get_activities(self) -> Iterable[JID]:
+        return [JID(el.xml.text) for el in self if isinstance(el, Activity)]
+
+    def del_activities(self):
+        for el in self.xml.findall('{%s}activity' % NS):
+            self.xml.remove(el)
+
+    def set_activities(self, activities: Iterable[JID]):
+        self.del_activities()
+        for jid in activities:
+            act = Activity()
+            act.xml.text = str(jid)
+            self.append(act)
+
+
+class Activity(ElementBase):
+    name = 'activity'
+    plugin_attrib = 'activity'
+    namespace = NS
+
+
+def register_plugins():
+    register_stanza_plugin(RAI, Activity, iterable=True)
+    register_stanza_plugin(Presence, RAI)
diff --git a/tests/test_stanza_xep_0437.py b/tests/test_stanza_xep_0437.py
new file mode 100644
index 00000000..b210660b
--- /dev/null
+++ b/tests/test_stanza_xep_0437.py
@@ -0,0 +1,28 @@
+import unittest
+from slixmpp import Presence, JID
+from slixmpp.test import SlixTest
+from slixmpp.plugins.xep_0437 import stanza
+
+
+class TestRAI(SlixTest):
+
+    def setUp(self):
+        stanza.register_plugins()
+
+    def testResponse(self):
+        presence = Presence()
+        presence['rai']['activities'] = [
+            JID('toto@titi'),
+            JID('coucou@coucou'),
+        ]
+        self.check(presence, """
+<presence>
+  <rai xmlns="urn:xmpp:rai:0">
+    <activity>toto@titi</activity>
+    <activity>coucou@coucou</activity>
+  </rai>
+</presence>
+        """, use_values=False)
+
+
+suite = unittest.TestLoader().loadTestsFromTestCase(TestRAI)