Gusto OAuth 2.0 connector profile – StackOne setup guide

Go to the Gusto Developer Portal and create an account if you don’t have one.

• Click Sign Up to create a new developer account
• Accept the terms of service
• Complete account verification

Once signed in, click Applications in the left sidebar, then click Create application and fill in the application details.

• Application name: Enter a name for your application (e.g., StackOne Integration)
• Organization: Select your organization from the dropdown
• Redirect URI: Enter https://api.stackone.com/connect/oauth2/gusto/callback
• Category: Select the appropriate category for your integration
• If building a time tracking integration, check Disable Gusto’s time tracking features
• Click Create to register the application

After creating your application, copy the Client ID and Client Secret from the application credentials page and store them securely for use later.

Initial credentials provide access to the Demo environment for development and testing.

• API Base URL: https://api.gusto-demo.com
• Use demo accounts to build and test your integration
• No real payroll data is processed in this environment

Production credentials are issued after your integration is approved.

• Complete the Production Pre-Approval application in the Developer Portal
• Wait for approval from Gusto’s Partnerships team
• Once approved, production credentials will be available in your Developer Portal
• Production API Base URL: https://api.gusto.com

Only users with specific admin roles can authorize applications.

• Primary admins can authorize applications
• Full-access admins can authorize applications
• Multi-company administrators must complete OAuth separately for each company