diff --git a/engine/apps/base/models/live_setting.py b/engine/apps/base/models/live_setting.py
index abd5cf1e..129d7e94 100644
--- a/engine/apps/base/models/live_setting.py
+++ b/engine/apps/base/models/live_setting.py
@@ -35,6 +35,8 @@ class LiveSetting(models.Model):
     AVAILABLE_NAMES = (
         "TWILIO_ACCOUNT_SID",
         "TWILIO_AUTH_TOKEN",
+        "TWILIO_API_KEY_SID",
+        "TWILIO_API_KEY_SECRET",
         "TWILIO_NUMBER",
         "TWILIO_VERIFY_SERVICE_SID",
         "TELEGRAM_TOKEN",
@@ -80,14 +82,24 @@ class LiveSetting(models.Model):
             "after you update them."
         ),
         "TWILIO_ACCOUNT_SID": (
-            "Twilio username to allow amixr send sms and make phone calls, "
+            "Twilio account SID/username to allow OnCall send sms and make phone calls, "
             "<a href='https://support.twilio.com/hc/en-us/articles/223136027-Auth-Tokens-and-How-to-Change-Them' target='_blank'>"
-            "more info</a>."
+            "more info</a>. Required."
+        ),
+        "TWILIO_API_KEY_SID": (
+            "Twilio API key SID/username to allow OnCall send sms and make phone calls, "
+            "<a href='https://www.twilio.com/docs/iam/keys/api-key' target='_blank'>"
+            "more info</a>. Either (TWILIO_API_KEY_SID + TWILIO_API_KEY_SECRET) or TWILIO_AUTH_TOKEN is required."
+        ),
+        "TWILIO_API_KEY_SECRET": (
+            "Twilio API key secret/password to allow OnCall send sms and make phone calls, "
+            "<a href='https://www.twilio.com/docs/iam/keys/api-key' target='_blank'>"
+            "more info</a>. Either (TWILIO_API_KEY_SID + TWILIO_API_KEY_SECRET) or TWILIO_AUTH_TOKEN is required."
         ),
         "TWILIO_AUTH_TOKEN": (
-            "Twilio password to allow amixr send sms and make calls, "
+            "Twilio password to allow OnCall send sms and make calls, "
             "<a href='https://support.twilio.com/hc/en-us/articles/223136027-Auth-Tokens-and-How-to-Change-Them' target='_blank'>"
-            "more info</a>."
+            "more info</a>. Either (TWILIO_API_KEY_SID + TWILIO_API_KEY_SECRET) or TWILIO_AUTH_TOKEN is required."
         ),
         "TWILIO_NUMBER": (
             "Number from which you will receive calls and SMS, "
diff --git a/engine/apps/base/utils.py b/engine/apps/base/utils.py
index 0fe0d8a9..e57a78d7 100644
--- a/engine/apps/base/utils.py
+++ b/engine/apps/base/utils.py
@@ -50,24 +50,63 @@ class LiveSettingValidator:
         check_fn = getattr(self, check_fn_name)
         return check_fn(self.live_setting.value)
 
+    @classmethod
+    def _check_twilio_api_key_sid(cls, twilio_api_key_sid):
+        if live_settings.TWILIO_AUTH_TOKEN:
+            return
+
+        try:
+            Client(
+                twilio_api_key_sid, live_settings.TWILIO_API_KEY_SECRET, live_settings.TWILIO_ACCOUNT_SID
+            ).api.applications.list(limit=1)
+        except Exception as e:
+            return cls._prettify_twilio_error(e)
+
+    @classmethod
+    def _check_twilio_api_key_secret(cls, twilio_api_key_secret):
+        if live_settings.TWILIO_AUTH_TOKEN:
+            return
+
+        try:
+            Client(
+                live_settings.TWILIO_API_KEY_SID, twilio_api_key_secret, live_settings.TWILIO_ACCOUNT_SID
+            ).api.applications.list(limit=1)
+        except Exception as e:
+            return cls._prettify_twilio_error(e)
+
     @classmethod
     def _check_twilio_account_sid(cls, twilio_account_sid):
         try:
-            Client(twilio_account_sid, live_settings.TWILIO_AUTH_TOKEN).api.accounts.list(limit=1)
+            if live_settings.TWILIO_API_KEY_SID and live_settings.TWILIO_API_KEY_SECRET:
+                Client(
+                    live_settings.TWILIO_API_KEY_SID, live_settings.TWILIO_API_KEY_SECRET, twilio_account_sid
+                ).api.applications.list(limit=1)
+            else:
+                Client(twilio_account_sid, live_settings.TWILIO_AUTH_TOKEN).api.applications.list(limit=1)
         except Exception as e:
             return cls._prettify_twilio_error(e)
 
     @classmethod
     def _check_twilio_auth_token(cls, twilio_auth_token):
+        if live_settings.TWILIO_API_KEY_SID and live_settings.TWILIO_API_KEY_SECRET:
+            return
+
         try:
-            Client(live_settings.TWILIO_ACCOUNT_SID, twilio_auth_token).api.accounts.list(limit=1)
+            Client(live_settings.TWILIO_ACCOUNT_SID, twilio_auth_token).api.applications.list(limit=1)
         except Exception as e:
             return cls._prettify_twilio_error(e)
 
     @classmethod
     def _check_twilio_verify_service_sid(cls, twilio_verify_service_sid):
         try:
-            twilio_client = Client(live_settings.TWILIO_ACCOUNT_SID, live_settings.TWILIO_AUTH_TOKEN)
+            if live_settings.TWILIO_API_KEY_SID and live_settings.TWILIO_API_KEY_SECRET:
+                twilio_client = Client(
+                    live_settings.TWILIO_API_KEY_SID,
+                    live_settings.TWILIO_API_KEY_SECRET,
+                    live_settings.TWILIO_ACCOUNT_SID,
+                )
+            else:
+                twilio_client = Client(live_settings.TWILIO_ACCOUNT_SID, live_settings.TWILIO_AUTH_TOKEN)
             twilio_client.verify.services(twilio_verify_service_sid).rate_limits.list(limit=1)
         except Exception as e:
             return cls._prettify_twilio_error(e)
diff --git a/engine/apps/twilioapp/twilio_client.py b/engine/apps/twilioapp/twilio_client.py
index 007d9e72..75d06403 100644
--- a/engine/apps/twilioapp/twilio_client.py
+++ b/engine/apps/twilioapp/twilio_client.py
@@ -17,7 +17,12 @@ logger = logging.getLogger(__name__)
 class TwilioClient:
     @property
     def twilio_api_client(self):
-        return Client(live_settings.TWILIO_ACCOUNT_SID, live_settings.TWILIO_AUTH_TOKEN)
+        if live_settings.TWILIO_API_KEY_SID and live_settings.TWILIO_API_KEY_SECRET:
+            return Client(
+                live_settings.TWILIO_API_KEY_SID, live_settings.TWILIO_API_KEY_SECRET, live_settings.TWILIO_ACCOUNT_SID
+            )
+        else:
+            return Client(live_settings.TWILIO_ACCOUNT_SID, live_settings.TWILIO_AUTH_TOKEN)
 
     @property
     def twilio_number(self):
diff --git a/engine/settings/base.py b/engine/settings/base.py
index d9ec9f36..9a5dd09d 100644
--- a/engine/settings/base.py
+++ b/engine/settings/base.py
@@ -56,6 +56,8 @@ FEATURE_WEB_SCHEDULES_ENABLED = getenv_boolean("FEATURE_WEB_SCHEDULES_ENABLED",
 GRAFANA_CLOUD_ONCALL_HEARTBEAT_ENABLED = getenv_boolean("GRAFANA_CLOUD_ONCALL_HEARTBEAT_ENABLED", default=True)
 GRAFANA_CLOUD_NOTIFICATIONS_ENABLED = getenv_boolean("GRAFANA_CLOUD_NOTIFICATIONS_ENABLED", default=True)
 
+TWILIO_API_KEY_SID = os.environ.get("TWILIO_API_KEY_SID")
+TWILIO_API_KEY_SECRET = os.environ.get("TWILIO_API_KEY_SECRET")
 TWILIO_ACCOUNT_SID = os.environ.get("TWILIO_ACCOUNT_SID")
 TWILIO_AUTH_TOKEN = os.environ.get("TWILIO_AUTH_TOKEN")
 TWILIO_NUMBER = os.environ.get("TWILIO_NUMBER")