---
title: "Can I sign my users in to my Catalyst app using Java or Node SDK?"
url: https://docs.catalyst.zoho.com/en/faq/cloud-scale/authentication-sdk/
description: "Because user sign-in is a client side operation, we do not support it through the Java or Node SDK. However, it is available exclusively in the Web SDK."
last_updated: 2026-11-13T05:00:22Z
service: CloudScale
type: faq
---

Because user sign-in is a client side operation, we do not support it through the Java or Node SDK. However, it is available exclusively in the Web SDK.