diff --git a/agent-office/app/service_proxy.py b/agent-office/app/service_proxy.py
index 15af394..cace022 100644
--- a/agent-office/app/service_proxy.py
+++ b/agent-office/app/service_proxy.py
@@ -352,6 +352,25 @@ async def list_active_pipelines() -> list[dict]:
         return resp.json().get("pipelines", [])
 
 
+async def list_failed_pipelines() -> list[dict]:
+    async with httpx.AsyncClient(timeout=10) as client:
+        resp = await client.get(f"{MUSIC_LAB_URL}/api/music/pipeline?status=failed")
+        resp.raise_for_status()
+        data = resp.json()
+        return data if isinstance(data, list) else data.get("items", data.get("pipelines", []))
+
+
+async def pipeline_retry(pid: int) -> dict:
+    async with httpx.AsyncClient(timeout=15) as client:
+        resp = await client.post(f"{MUSIC_LAB_URL}/api/music/pipeline/{pid}/retry")
+        out = {"status_code": resp.status_code}
+        try:
+            out.update(resp.json())
+        except Exception:
+            pass
+        return out
+
+
 async def get_pipeline(pid: int) -> dict:
     async with httpx.AsyncClient(timeout=15) as client:
         resp = await client.get(f"{MUSIC_LAB_URL}/api/music/pipeline/{pid}")
diff --git a/music-lab/app/db.py b/music-lab/app/db.py
index e1d9ea1..fe71a2f 100644
--- a/music-lab/app/db.py
+++ b/music-lab/app/db.py
@@ -1135,6 +1135,21 @@ def list_pipelines(active_only: bool = False) -> List[Dict[str, Any]]:
     return [_parse_pipeline_row(r) for r in rows]
 
 
+def list_pipelines_by_state(state: str) -> List[Dict[str, Any]]:
+    """특정 state의 파이프라인만 조회 (예: 'failed')."""
+    sql = """
+        SELECT vp.*, ml.title AS track_title, cj.title AS compile_title
+        FROM video_pipelines vp
+        LEFT JOIN music_library ml ON ml.id = vp.track_id
+        LEFT JOIN compile_jobs cj ON cj.id = vp.compile_job_id
+        WHERE vp.state = ?
+        ORDER BY vp.created_at DESC
+    """
+    with _conn() as conn:
+        rows = conn.execute(sql, (state,)).fetchall()
+    return [_parse_pipeline_row(r) for r in rows]
+
+
 def increment_feedback_count(pid: int, step: str) -> int:
     """원자적으로 feedback_count_per_step.<step>를 +1 한 뒤 새 값을 반환.
 
diff --git a/music-lab/app/main.py b/music-lab/app/main.py
index 0574030..7747579 100644
--- a/music-lab/app/main.py
+++ b/music-lab/app/main.py
@@ -1030,7 +1030,12 @@ def create_pipeline(req: PipelineCreate):
 
 @app.get("/api/music/pipeline")
 def list_pipelines_endpoint(status: str = "all"):
-    pipelines = _db_module.list_pipelines(active_only=(status == "active"))
+    if status == "active":
+        pipelines = _db_module.list_pipelines(active_only=True)
+    elif status == "failed":
+        pipelines = _db_module.list_pipelines_by_state("failed")
+    else:
+        pipelines = _db_module.list_pipelines(active_only=False)
     return {"pipelines": pipelines}
 
 
diff --git a/music-lab/tests/test_pipeline_endpoints.py b/music-lab/tests/test_pipeline_endpoints.py
index abbcad7..208319b 100644
--- a/music-lab/tests/test_pipeline_endpoints.py
+++ b/music-lab/tests/test_pipeline_endpoints.py
@@ -52,6 +52,19 @@ def test_list_pipelines_active_filter(client):
     assert all(p["state"] != "published" for p in r.json()["pipelines"])
 
 
+def test_list_pipelines_failed_filter(client):
+    """status=failed 필터는 state='failed' 파이프라인만 반환한다."""
+    # failed 파이프라인 생성
+    pid_f = client.post("/api/music/pipeline", json={"track_id": 1}).json()["id"]
+    db.update_pipeline_state(pid_f, "failed", failed_reason="cover: oops")
+    r = client.get("/api/music/pipeline?status=failed")
+    assert r.status_code == 200
+    pipelines = r.json()["pipelines"]
+    assert len(pipelines) == 1
+    assert pipelines[0]["state"] == "failed"
+    assert pipelines[0]["id"] == pid_f
+
+
 def test_feedback_reject_records_feedback_and_increments_count(client):
     pid = client.post("/api/music/pipeline", json={"track_id": 1}).json()["id"]
     db.update_pipeline_state(pid, "cover_pending")