diff --git a/gns3server/agent/gns3_copilot/agent/gns3_copilot.py b/gns3server/agent/gns3_copilot/agent/gns3_copilot.py
index f8271a287..f941cfad1 100644
--- a/gns3server/agent/gns3_copilot/agent/gns3_copilot.py
+++ b/gns3server/agent/gns3_copilot/agent/gns3_copilot.py
@@ -43,17 +43,17 @@ from typing_extensions import TypedDict
 
 import logging
 
-from gns3_copilot.agent.model_factory import (
+from gns3server.agent.gns3_copilot.agent.model_factory import (
     create_base_model_with_tools,
     create_title_model,
 )
-from gns3_copilot.gns3_client import GNS3TopologyTool
-from gns3_copilot.prompts import TITLE_PROMPT, load_system_prompt
+from gns3server.agent.gns3_copilot.gns3_client import GNS3TopologyTool
+from gns3server.agent.gns3_copilot.prompts import TITLE_PROMPT, load_system_prompt
 import sys
 from pathlib import Path
 # Add backend to path for prompt_manager
 sys.path.insert(0, str(Path(__file__).parent.parent.parent.parent / "backend"))
-from gns3_copilot.tools_v2 import (
+from gns3server.agent.gns3_copilot.tools_v2 import (
     ExecuteMultipleDeviceCommands,
     GNS3CreateNodeTool,
     GNS3LinkTool,
diff --git a/gns3server/agent/gns3_copilot/agent/model_factory.py b/gns3server/agent/gns3_copilot/agent/model_factory.py
index 6467a055e..17354b42b 100644
--- a/gns3server/agent/gns3_copilot/agent/model_factory.py
+++ b/gns3server/agent/gns3_copilot/agent/model_factory.py
@@ -12,7 +12,7 @@ from uuid import UUID
 
 from langchain.chat_models import init_chat_model
 
-from gns3_copilot.gns3_client import get_llm_config
+from gns3server.agent.gns3_copilot.gns3_client import get_llm_config
 
 logger = logging.getLogger(__name__)
 
diff --git a/gns3server/agent/gns3_copilot/agent_service.py b/gns3server/agent/gns3_copilot/agent_service.py
index c1c288771..410a5a00a 100644
--- a/gns3server/agent/gns3_copilot/agent_service.py
+++ b/gns3server/agent/gns3_copilot/agent_service.py
@@ -16,7 +16,7 @@ import aiosqlite
 from langchain_core.messages import HumanMessage, AIMessage, ToolMessage
 from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
 
-from gns3_copilot.agent.gns3_copilot import agent_builder
+from gns3server.agent.gns3_copilot.agent.gns3_copilot import agent_builder
 
 log = logging.getLogger(__name__)
 
diff --git a/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py b/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
index d817d265a..659cb88c1 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
@@ -14,7 +14,7 @@ Main Functions:
     get_gns3_connector: Create a Gns3Connector with JWT token
 
 Example:
-    from gns3_copilot.gns3_client import get_gns3_connector
+    from gns3server.agent.gns3_copilot.gns3_client import get_gns3_connector
 
     # Auto-detect URL from Controller or Config
     connector = get_gns3_connector(jwt_token="your_token")
@@ -29,7 +29,7 @@ Authentication:
 import logging
 from typing import Optional
 
-from gns3_copilot.gns3_client.custom_gns3fy import Gns3Connector
+from gns3server.agent.gns3_copilot.gns3_client.custom_gns3fy import Gns3Connector
 
 logger = logging.getLogger(__name__)
 
@@ -241,7 +241,7 @@ async def get_gns3_connector_with_llm_config(
             url = _detect_url_for_api()
 
         # Step 3: Get LLM config
-        from gns3_copilot.utils.llm_config_helper import get_user_llm_config
+        from gns3server.agent.gns3_copilot.utils.llm_config_helper import get_user_llm_config
 
         llm_config = await get_user_llm_config(
             user_id=user_id,
@@ -316,7 +316,7 @@ def get_gns3_server_host() -> str:
         Hostname/IP address string
 
     Example:
-        from gns3_copilot.gns3_client import get_gns3_server_host
+        from gns3server.agent.gns3_copilot.gns3_client import get_gns3_server_host
 
         host = get_gns3_server_host()
         print(f"GNS3 server host: {host}")
@@ -353,7 +353,7 @@ def get_llm_config(user_id, jwt_token: str) -> Optional[dict]:
         or None if not found.
 
     Example:
-        from gns3_copilot.gns3_client import get_llm_config
+        from gns3server.agent.gns3_copilot.gns3_client import get_llm_config
 
         config = get_llm_config(user_id, jwt_token)
         if config:
@@ -372,7 +372,7 @@ def get_llm_config(user_id, jwt_token: str) -> Optional[dict]:
         url = _detect_url_for_api()
 
         # Import the async helper
-        from gns3_copilot.utils.llm_config_helper import get_user_llm_config
+        from gns3server.agent.gns3_copilot.utils.llm_config_helper import get_user_llm_config
 
         # Run async function in sync context
         loop = asyncio.get_event_loop()
diff --git a/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py b/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py
index c9d094433..939144133 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py
@@ -9,7 +9,7 @@ from typing import Any
 
 from langchain.tools import BaseTool
 
-from gns3_copilot.gns3_client import Project, get_gns3_connector
+from gns3server.agent.gns3_copilot.gns3_client import Project, get_gns3_connector
 
 # Configure logging
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py b/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py
index 762c73b7e..496536daf 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py
@@ -8,7 +8,7 @@ import logging
 import os
 from typing import Any
 
-from gns3_copilot.gns3_client import get_gns3_server_host
+from gns3server.agent.gns3_copilot.gns3_client import get_gns3_server_host
 
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
@@ -18,7 +18,7 @@ from nornir.core import Nornir
 from nornir.core.task import AggregatedResult, Result, Task
 from nornir_netmiko.tasks import netmiko_send_config
 
-from gns3_copilot.utils import get_device_ports_from_topology
+from gns3server.agent.gns3_copilot.utils import get_device_ports_from_topology
 
 # config log
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py b/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py
index 35f4ea10e..c7ce08404 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py
@@ -9,7 +9,7 @@ import os
 import re
 from typing import Any
 
-from gns3_copilot.gns3_client import get_gns3_server_host
+from gns3server.agent.gns3_copilot.gns3_client import get_gns3_server_host
 
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
@@ -19,7 +19,7 @@ from nornir.core import Nornir
 from nornir.core.task import AggregatedResult, Result, Task
 from nornir_netmiko.tasks import netmiko_multiline
 
-from gns3_copilot.utils import get_device_ports_from_topology
+from gns3server.agent.gns3_copilot.utils import get_device_ports_from_topology
 
 # config log
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py
index 206455e82..556e9efd9 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py
@@ -13,7 +13,7 @@ from typing import Any
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
 
-from gns3_copilot.gns3_client import Link, get_gns3_connector
+from gns3server.agent.gns3_copilot.gns3_client import Link, get_gns3_connector
 
 # Configure logging
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py
index c7e53418d..82b9a35d6 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py
@@ -13,7 +13,7 @@ from typing import Any
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
 
-from gns3_copilot.gns3_client import Node, get_gns3_connector
+from gns3server.agent.gns3_copilot.gns3_client import Node, get_gns3_connector
 
 # Configure logging
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py
index ae8370621..88bf62862 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py
@@ -13,7 +13,7 @@ from typing import Any
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
 
-from gns3_copilot.gns3_client import get_gns3_connector
+from gns3server.agent.gns3_copilot.gns3_client import get_gns3_connector
 
 # Configure logging
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py
index 1b556c110..4a539d0fc 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py
@@ -14,7 +14,7 @@ from typing import Any
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
 
-from gns3_copilot.gns3_client import Node, get_gns3_connector
+from gns3server.agent.gns3_copilot.gns3_client import Node, get_gns3_connector
 
 # Configure logging
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py
index b0bb45113..983ef5f51 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py
@@ -12,7 +12,7 @@ from typing import Any
 from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
 
-from gns3_copilot.gns3_client import Node, get_gns3_connector
+from gns3server.agent.gns3_copilot.gns3_client import Node, get_gns3_connector
 
 # Configure logging
 logger = logging.getLogger(__name__)
diff --git a/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py b/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py
index 215cea76d..8d4ea969c 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py
@@ -15,8 +15,8 @@ from langchain.tools import BaseTool
 from langchain_core.callbacks import CallbackManagerForToolRun
 from telnetlib3 import Telnet
 
-from gns3_copilot.gns3_client import get_gns3_server_host
-from gns3_copilot.utils import get_device_ports_from_topology
+from gns3server.agent.gns3_copilot.gns3_client import get_gns3_server_host
+from gns3server.agent.gns3_copilot.utils import get_device_ports_from_topology
 
 logger = logging.getLogger(__name__)
 
diff --git a/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py b/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py
index fa2685efb..368b9d7bd 100644
--- a/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py
+++ b/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py
@@ -34,7 +34,7 @@ def get_device_ports_from_topology(
 
     try:
         # Lazy import to avoid circular dependency
-        from gns3_copilot.gns3_client import GNS3TopologyTool
+        from gns3server.agent.gns3_copilot.gns3_client import GNS3TopologyTool
 
         # Get topology information
         topo = GNS3TopologyTool()
diff --git a/gns3server/agent/gns3_copilot/utils/llm_config_helper.py b/gns3server/agent/gns3_copilot/utils/llm_config_helper.py
index 748feb986..3b5df270a 100644
--- a/gns3server/agent/gns3_copilot/utils/llm_config_helper.py
+++ b/gns3server/agent/gns3_copilot/utils/llm_config_helper.py
@@ -11,7 +11,7 @@ This allows the copilot module to access API keys that are hidden from API respo
 while leveraging the API's default_config selection logic.
 
 Usage:
-    from gns3_copilot.utils.llm_config_helper import get_user_llm_config
+    from gns3server.agent.gns3_copilot.utils.llm_config_helper import get_user_llm_config
 
     # Get user's default LLM config (with API key)
     config = get_user_llm_config(user_id, jwt_token, gns3_url)
@@ -232,7 +232,7 @@ def _detect_gns3_url() -> Optional[str]:
         GNS3 server URL, or None if detection failed
     """
     try:
-        from gns3_copilot.gns3_client.connector_factory import (
+        from gns3server.agent.gns3_copilot.gns3_client.connector_factory import (
             _get_url_from_controller,
             _get_url_from_config,
             DEFAULT_GNS3_URL
diff --git a/gns3server/api/routes/controller/chat.py b/gns3server/api/routes/controller/chat.py
index 856162b75..093aeebde 100644
--- a/gns3server/api/routes/controller/chat.py
+++ b/gns3server/api/routes/controller/chat.py
@@ -21,7 +21,7 @@ API routes for GNS3 Copilot Chat integration.
 import json
 import logging
 import uuid
-from typing import Optional
+from typing import Optional, List
 
 from fastapi import APIRouter, Depends, HTTPException, Request, status
 from fastapi.responses import StreamingResponse
diff --git a/gns3server/schemas/__init__.py b/gns3server/schemas/__init__.py
index 33f4c7337..843349891 100644
--- a/gns3server/schemas/__init__.py
+++ b/gns3server/schemas/__init__.py
@@ -39,6 +39,14 @@ from .controller.llm_model_configs import (
     LLMModelConfigInheritedResponse,
     LLMModelConfigListResponse
 )
+from .controller.chat import (
+    OpenAIToolCall,
+    ChatRequest,
+    ChatResponse,
+    OpenAIMessage,
+    ConversationHistory,
+    ChatSession
+)
 from .controller.rbac import RoleCreate, RoleUpdate, Role, Privilege, ACECreate, ACEUpdate, ACE
 from .controller.pools import Resource, ResourceCreate, ResourcePoolCreate, ResourcePoolUpdate, ResourcePool
 from .controller.tokens import Token