diff --git a/surfsense_backend/app/agents/multi_agent_chat/integration/__init__.py b/surfsense_backend/app/agents/multi_agent_chat/integration/__init__.py
new file mode 100644
index 000000000..6dee8c1be
--- /dev/null
+++ b/surfsense_backend/app/agents/multi_agent_chat/integration/__init__.py
@@ -0,0 +1,5 @@
+"""Full-stack wiring (DB-scoped) on top of :mod:`routing` and :mod:`supervisor`."""
+
+from app.agents.multi_agent_chat.integration.create_multi_agent_chat import create_multi_agent_chat
+
+__all__ = ["create_multi_agent_chat"]
diff --git a/surfsense_backend/app/agents/multi_agent_chat/integration/create_multi_agent_chat.py b/surfsense_backend/app/agents/multi_agent_chat/integration/create_multi_agent_chat.py
new file mode 100644
index 000000000..2d4046134
--- /dev/null
+++ b/surfsense_backend/app/agents/multi_agent_chat/integration/create_multi_agent_chat.py
@@ -0,0 +1,37 @@
+"""Single entry: SurfSense connectors + multi-agent stack → compiled supervisor graph."""
+
+from __future__ import annotations
+
+from langchain_core.language_models import BaseChatModel
+from langgraph.types import Checkpointer
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.agents.multi_agent_chat.calendar import build_google_calendar_connector_tools
+from app.agents.multi_agent_chat.gmail import build_gmail_connector_tools
+from app.agents.multi_agent_chat.routing.supervisor_routing import build_supervisor_routing_tools
+from app.agents.multi_agent_chat.supervisor import build_supervisor_agent
+
+
+def create_multi_agent_chat(
+    llm: BaseChatModel,
+    *,
+    db_session: AsyncSession,
+    search_space_id: int,
+    user_id: str,
+    checkpointer: Checkpointer | None = None,
+):
+    """Build the full multi-agent chat graph (supervisor + Gmail + Calendar sub-agents via ``new_chat`` tools)."""
+    routing_tools = build_supervisor_routing_tools(
+        llm,
+        gmail_tools=build_gmail_connector_tools(
+            db_session=db_session,
+            search_space_id=search_space_id,
+            user_id=user_id,
+        ),
+        calendar_tools=build_google_calendar_connector_tools(
+            db_session=db_session,
+            search_space_id=search_space_id,
+            user_id=user_id,
+        ),
+    )
+    return build_supervisor_agent(llm, tools=routing_tools, checkpointer=checkpointer)