diff --git a/chain_service/controllers/chain.py b/chain_service/controllers/chain.py
index 931010b..a415206 100644
--- a/chain_service/controllers/chain.py
+++ b/chain_service/controllers/chain.py
@@ -37,9 +37,12 @@ async def chain_upsert_controller(
 
 
 @router.get("/list")
-async def chain_list_controller(chain_repository: ChainRepositoryDependency):
+async def chain_list_controller(
+    namespace_id: str, chain_repository: ChainRepositoryDependency
+):
+
     try:
-        chains = await chain_repository.get_list()
+        chains = await chain_repository.get_list(namespace_id=namespace_id)
         return chains
 
     except Exception:
diff --git a/chain_service/repositories/chain.py b/chain_service/repositories/chain.py
index 08f571a..0d03fb5 100644
--- a/chain_service/repositories/chain.py
+++ b/chain_service/repositories/chain.py
@@ -2,6 +2,7 @@ from loguru import logger
 
 from uuid import UUID
 from typing import List
+from bson import ObjectId
 from pydantic import TypeAdapter
 
 from chain_service.database.database import Database
@@ -19,9 +20,12 @@ class ChainRepository:
         await self.collection.replace_one(query, payload, upsert=True)
         return chain
 
-    async def get_list(self) -> List[Chain]:
+    async def get_list(self, namespace_id: str) -> List[Chain]:
         # sort_order = ("lastModified", pymongo.DESCENDING)
-        chains = [chain async for chain in self.collection.find()]
+        query = {"namespaceId": namespace_id}
+        chains = [
+            chain async for chain in self.collection.find({"namespaceId": namespace_id})
+        ]
         return TypeAdapter(List[Chain]).validate_python(chains)
 
     async def get_by_id(self, chain_id: str) -> Chain | None: