---
title: "Generate a Custom Server Token"
url: https://docs.catalyst.zoho.com/en/sdk/java/v1/cloud-scale/authentication/third-party-server-token/
description: "This page describes the method to add new end-users to your Java application using Catalyst Authentication with sample code snippets."
last_updated: 2025-11-19T15:07:41Z
service: Cloud Scale
type: general
related_links:
  - name: "Authentication"
    url: /en/cloud-scale/help/authentication/introduction
---

# Generate a Custom Server Token

Cloud Scale's Authentication component allows you to implement a [third-party authentication service](https://docs.catalyst.zoho.com/en/cloud-scale/help/authentication/third-party-authentication/introduction/) of your preference for your Catalyst application. The authorization and validation of the end-user is handled by the third-party service, and the data is passed on to Catalyst. 

> **Note:** 

* Since you are implementing a third-party authentication service, it is understood that the security infrastructure of your application is contingent on the efficiency of the third-party service that you have chosen.
* To enable a third-party authentication in your Catalyst application, you must ensure that you have enabled [Public Signup](https://docs.catalyst.zoho.com/en/cloud-scale/help/authentication/public-signup/) in the console.

When a user is re-directed from a third-party service after being authenticated, their credentials must be passed to an authentication function that you code. This function must include the Catalyst server-side logic to generate a custom server token, which will then be passed to the Web SDK incorporated in the client code.

A sample code to generate a custom server token is given below.

#### Sample Code Snippet

```java
ZCCustomTokenDetails customTokenDetails = ZCCustomTokenDetails.getInstance();
ZCCustomTokenUserDetails tokenUserDetails = ZCCustomTokenUserDetails.getInstance();
//Set token user details
tokenUserDetails.setEmailId("emma@zylker.com");
tokenUserDetails.setFirstName("Amelia");
tokenUserDetails.setLastName("Burrows");
tokenUserDetails.setRoleName("App Admin");
customTokenDetails.setUserDetails(tokenUserDetails);
ZCCustomTokenResponse customTokenResp = ZCUser.getInstance().generateCustomToken(customTokenDetails);

```

You can now pass this token to the client logic as explained in this [Web SDK help page](https://docs.catalyst.zoho.com/en/sdk/web/v4/cloud-scale/authentication/third-party-custom-token/).

> **Note:** The custom server token will have to be generated every single time the user logs in to your application using a third-party authentication service.