diff --git a/memgpt/client/client.py b/memgpt/client/client.py
index a3fa5077..3e247e91 100644
--- a/memgpt/client/client.py
+++ b/memgpt/client/client.py
@@ -586,7 +586,10 @@ class RESTClient(AbstractClient):
         return Source(**response_json)
 
     def list_attached_sources(self, agent_id: str) -> List[Source]:
-        raise NotImplementedError
+        response = requests.get(f"{self.base_url}/api/agents/{agent_id}/sources", headers=self.headers)
+        if response.status_code != 200:
+            raise ValueError(f"Failed to list attached sources: {response.text}")
+        return [Source(**source) for source in response.json()]
 
     def update_source(self, source_id: str, name: Optional[str] = None) -> Source:
         request = SourceUpdate(id=source_id, name=name)
diff --git a/memgpt/server/rest_api/agents/index.py b/memgpt/server/rest_api/agents/index.py
index 9491f0a1..bfbcfb81 100644
--- a/memgpt/server/rest_api/agents/index.py
+++ b/memgpt/server/rest_api/agents/index.py
@@ -4,6 +4,7 @@ from typing import List
 from fastapi import APIRouter, Body, Depends, HTTPException
 
 from memgpt.schemas.agent import AgentState, CreateAgent, UpdateAgentState
+from memgpt.schemas.source import Source
 from memgpt.server.rest_api.auth_token import get_current_user
 from memgpt.server.rest_api.interface import QueuingInterface
 from memgpt.server.server import SyncServer
@@ -91,4 +92,15 @@ def setup_agents_index_router(server: SyncServer, interface: QueuingInterface, p
         except Exception as e:
             raise HTTPException(status_code=500, detail=f"{e}")
 
+    @router.get("/agents/{agent_id}/sources", tags=["agents"], response_model=List[Source])
+    def get_agent_sources(
+        agent_id: str,
+        user_id: str = Depends(get_current_user_with_server),
+    ):
+        """
+        Get the sources associated with an agent.
+        """
+        interface.clear()
+        return server.list_attached_sources(agent_id)
+
     return router
diff --git a/tests/test_client.py b/tests/test_client.py
index fb168046..5da524f1 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -281,6 +281,11 @@ def test_sources(client, agent):
     # attach a source
     client.attach_source_to_agent(source_id=source.id, agent_id=agent.id)
 
+    # list attached sources
+    attached_sources = client.list_attached_sources(agent_id=agent.id)
+    print("attached sources", attached_sources)
+    assert source.id in [s.id for s in attached_sources], f"Attached sources: {attached_sources}"
+
     # list archival memory
     archival_memories = client.get_archival_memory(agent_id=agent.id)
     # print(archival_memories)