diff --git a/app/main.py b/app/main.py
index 46514ea..7391625 100644
--- a/app/main.py
+++ b/app/main.py
@@ -3047,6 +3047,46 @@ async def admin_sweep(request: Request):
     return result
 
 
+def _verify_sync_token(request: Request) -> None:
+    """Authenticate the LibreChat key-sync feed via X-Sync-Token.
+
+    Dedicated machine secret (least privilege): it only ever exposes the
+    members' own chat keys, never the admin API. The same secret is set on
+    the LibreChat sandbox app (LIBRECHAT_SYNC_TOKEN in /app/data/env).
+    """
+    expected = os.environ.get("LIBRECHAT_SYNC_TOKEN", "")
+    if not expected:
+        raise HTTPException(503, "Sync token not configured")
+    provided = request.headers.get("x-sync-token", "")
+    if not secrets.compare_digest(provided, expected):
+        raise HTTPException(401, "Invalid sync token")
+
+
+@app.get("/admin/librechat/keys")
+@limiter.limit("30/minute")
+async def admin_librechat_keys(request: Request):
+    """Key feed for the LibreChat sandbox's per-member key auto-load.
+
+    Returns every ACTIVE member's portal-provisioned chat key so the sandbox
+    can seed LibreChat's user-key store and members never see an API-key
+    prompt (chat bills to the member's own LiteLLM team/budget). Auth is the
+    dedicated X-Sync-Token header — NOT the admin token.
+    """
+    _verify_sync_token(request)
+
+    conn = get_db()
+    rows = conn.execute(
+        "SELECT email, key_token FROM members WHERE active = 1 AND key_token != ''"
+    ).fetchall()
+    conn.close()
+    return {
+        "members": [
+            {"email": email, "key": key_token}
+            for email, key_token in rows
+        ]
+    }
+
+
 @app.get("/")
 async def index():
     return {"service": "Inference Cooperative Member Portal", "version": "0.1.0"}