diff --git a/sentry_sdk/client.py b/sentry_sdk/client.py
index 8aad751470..846fc0a7b6 100644
--- a/sentry_sdk/client.py
+++ b/sentry_sdk/client.py
@@ -43,7 +43,10 @@
     from typing import Dict
     from typing import Optional
     from typing import Sequence
+    from typing import Type
+    from typing import Union
 
+    from sentry_sdk.integrations import Integration
     from sentry_sdk.scope import Scope
     from sentry_sdk._types import Event, Hint
     from sentry_sdk.session import Session
@@ -653,6 +656,22 @@ def capture_session(
         else:
             self.session_flusher.add_session(session)
 
+    def get_integration(
+        self, name_or_class  # type: Union[str, Type[Integration]]
+    ):
+        # type: (...) -> Any
+        """Returns the integration for this client by name or class.
+        If the client does not have that integration then `None` is returned.
+        """
+        if isinstance(name_or_class, str):
+            integration_name = name_or_class
+        elif name_or_class.identifier is not None:
+            integration_name = name_or_class.identifier
+        else:
+            raise ValueError("Integration has no name")
+
+        return self.integrations.get(integration_name)
+
     def close(
         self,
         timeout=None,  # type: Optional[float]
diff --git a/sentry_sdk/hub.py b/sentry_sdk/hub.py
index 2525dc56f1..032ccd09e7 100644
--- a/sentry_sdk/hub.py
+++ b/sentry_sdk/hub.py
@@ -3,7 +3,7 @@
 
 from contextlib import contextmanager
 
-from sentry_sdk._compat import datetime_utcnow, with_metaclass
+from sentry_sdk._compat import with_metaclass
 from sentry_sdk.consts import INSTRUMENTER
 from sentry_sdk.scope import Scope
 from sentry_sdk.client import Client
@@ -15,7 +15,6 @@
     BAGGAGE_HEADER_NAME,
     SENTRY_TRACE_HEADER_NAME,
 )
-from sentry_sdk.session import Session
 from sentry_sdk.tracing_utils import (
     has_tracing_enabled,
     normalize_incoming_data,
@@ -294,18 +293,9 @@ def get_integration(
         If the return value is not `None` the hub is guaranteed to have a
         client attached.
         """
-        if isinstance(name_or_class, str):
-            integration_name = name_or_class
-        elif name_or_class.identifier is not None:
-            integration_name = name_or_class.identifier
-        else:
-            raise ValueError("Integration has no name")
-
         client = self.client
         if client is not None:
-            rv = client.integrations.get(integration_name)
-            if rv is not None:
-                return rv
+            return client.get_integration(name_or_class)
 
     @property
     def client(self):
@@ -430,31 +420,9 @@ def add_breadcrumb(self, crumb=None, hint=None, **kwargs):
             logger.info("Dropped breadcrumb because no client bound")
             return
 
-        crumb = dict(crumb or ())  # type: Breadcrumb
-        crumb.update(kwargs)
-        if not crumb:
-            return
-
-        hint = dict(hint or ())  # type: Hint
-
-        if crumb.get("timestamp") is None:
-            crumb["timestamp"] = datetime_utcnow()
-        if crumb.get("type") is None:
-            crumb["type"] = "default"
-
-        if client.options["before_breadcrumb"] is not None:
-            new_crumb = client.options["before_breadcrumb"](crumb, hint)
-        else:
-            new_crumb = crumb
-
-        if new_crumb is not None:
-            scope._breadcrumbs.append(new_crumb)
-        else:
-            logger.info("before breadcrumb dropped breadcrumb (%s)", crumb)
+        kwargs["client"] = client
 
-        max_breadcrumbs = client.options["max_breadcrumbs"]  # type: int
-        while len(scope._breadcrumbs) > max_breadcrumbs:
-            scope._breadcrumbs.popleft()
+        scope.add_breadcrumb(crumb, hint, **kwargs)
 
     def start_span(self, span=None, instrumenter=INSTRUMENTER.SENTRY, **kwargs):
         # type: (Optional[Span], str, Any) -> Span
@@ -712,12 +680,9 @@ def start_session(
     ):
         # type: (...) -> None
         """Starts a new session."""
-        self.end_session()
         client, scope = self._stack[-1]
-        scope._session = Session(
-            release=client.options["release"] if client else None,
-            environment=client.options["environment"] if client else None,
-            user=scope._user,
+        scope.start_session(
+            client=client,
             session_mode=session_mode,
         )
 
@@ -725,13 +690,7 @@ def end_session(self):
         # type: (...) -> None
         """Ends the current session if there is one."""
         client, scope = self._stack[-1]
-        session = scope._session
-        self.scope._session = None
-
-        if session is not None:
-            session.close()
-            if client is not None:
-                client.capture_session(session)
+        scope.end_session(client=client)
 
     def stop_auto_session_tracking(self):
         # type: (...) -> None
@@ -740,9 +699,8 @@ def stop_auto_session_tracking(self):
         This temporarily session tracking for the current scope when called.
         To resume session tracking call `resume_auto_session_tracking`.
         """
-        self.end_session()
         client, scope = self._stack[-1]
-        scope._force_auto_session_tracking = False
+        scope.stop_auto_session_tracking(client=client)
 
     def resume_auto_session_tracking(self):
         # type: (...) -> None
@@ -750,8 +708,8 @@ def resume_auto_session_tracking(self):
         disabled earlier.  This requires that generally automatic session
         tracking is enabled.
         """
-        client, scope = self._stack[-1]
-        scope._force_auto_session_tracking = None
+        scope = self._stack[-1][1]
+        scope.resume_auto_session_tracking()
 
     def flush(
         self,
diff --git a/sentry_sdk/scope.py b/sentry_sdk/scope.py
index 5096eccce0..8e9724b4c5 100644
--- a/sentry_sdk/scope.py
+++ b/sentry_sdk/scope.py
@@ -5,7 +5,10 @@
 import uuid
 
 from sentry_sdk.attachments import Attachment
+from sentry_sdk._compat import datetime_utcnow
+from sentry_sdk.consts import FALSE_VALUES
 from sentry_sdk._functools import wraps
+from sentry_sdk.session import Session
 from sentry_sdk.tracing_utils import (
     Baggage,
     extract_sentrytrace_data,
@@ -20,9 +23,6 @@
 from sentry_sdk._types import TYPE_CHECKING
 from sentry_sdk.utils import logger, capture_internal_exceptions
 
-from sentry_sdk.consts import FALSE_VALUES
-
-
 if TYPE_CHECKING:
     from typing import Any
     from typing import Dict
@@ -36,6 +36,7 @@
 
     from sentry_sdk._types import (
         Breadcrumb,
+        BreadcrumbHint,
         Event,
         EventProcessor,
         ErrorProcessor,
@@ -46,7 +47,6 @@
 
     from sentry_sdk.profiler import Profile
     from sentry_sdk.tracing import Span
-    from sentry_sdk.session import Session
 
     F = TypeVar("F", bound=Callable[..., Any])
     T = TypeVar("T")
@@ -517,6 +517,97 @@ def add_attachment(
             )
         )
 
+    def add_breadcrumb(self, crumb=None, hint=None, **kwargs):
+        # type: (Optional[Breadcrumb], Optional[BreadcrumbHint], Any) -> None
+        """
+        Adds a breadcrumb.
+
+        :param crumb: Dictionary with the data as the sentry v7/v8 protocol expects.
+
+        :param hint: An optional value that can be used by `before_breadcrumb`
+            to customize the breadcrumbs that are emitted.
+        """
+        client = kwargs.pop("client", None)
+        if client is None:
+            return
+
+        before_breadcrumb = client.options.get("before_breadcrumb")
+        max_breadcrumbs = client.options.get("max_breadcrumbs")
+
+        crumb = dict(crumb or ())  # type: Breadcrumb
+        crumb.update(kwargs)
+        if not crumb:
+            return
+
+        hint = dict(hint or ())  # type: Hint
+
+        if crumb.get("timestamp") is None:
+            crumb["timestamp"] = datetime_utcnow()
+        if crumb.get("type") is None:
+            crumb["type"] = "default"
+
+        if before_breadcrumb is not None:
+            new_crumb = before_breadcrumb(crumb, hint)
+        else:
+            new_crumb = crumb
+
+        if new_crumb is not None:
+            self._breadcrumbs.append(new_crumb)
+        else:
+            logger.info("before breadcrumb dropped breadcrumb (%s)", crumb)
+
+        while len(self._breadcrumbs) > max_breadcrumbs:
+            self._breadcrumbs.popleft()
+
+    def start_session(self, *args, **kwargs):
+        # type: (*Any, **Any) -> None
+        """Starts a new session."""
+        client = kwargs.pop("client", None)
+        session_mode = kwargs.pop("session_mode", "application")
+
+        self.end_session(client=client)
+
+        self._session = Session(
+            release=client.options["release"] if client else None,
+            environment=client.options["environment"] if client else None,
+            user=self._user,
+            session_mode=session_mode,
+        )
+
+    def end_session(self, *args, **kwargs):
+        # type: (*Any, **Any) -> None
+        """Ends the current session if there is one."""
+        client = kwargs.pop("client", None)
+
+        session = self._session
+        self._session = None
+
+        if session is not None:
+            session.close()
+            if client is not None:
+                client.capture_session(session)
+
+    def stop_auto_session_tracking(self, *args, **kwargs):
+        # type: (*Any, **Any) -> None
+        """Stops automatic session tracking.
+
+        This temporarily session tracking for the current scope when called.
+        To resume session tracking call `resume_auto_session_tracking`.
+        """
+        client = kwargs.pop("client", None)
+
+        self.end_session(client=client)
+
+        self._force_auto_session_tracking = False
+
+    def resume_auto_session_tracking(self):
+        # type: (...) -> None
+        """Resumes automatic session tracking for the current scope if
+        disabled earlier.  This requires that generally automatic session
+        tracking is enabled.
+        """
+        self._force_auto_session_tracking = None
+
     def add_event_processor(
         self, func  # type: EventProcessor
     ):