Get Credentials to Access GLS US Shipping API

Overview

AfterShip Shipping is the best multi-carrier shipping software and API that enables you to automate shipping processes across USPS, UPS, FedEx, DHL, and 90+ other couriers. Get the required credentials and access GLS US shipping API via AfterShip Shipping in just a few steps.

Get GLS US Developer Credentials

1. Email GLS US sales representative and cc [email protected]. Tell GLS US you need to obtain GLS US API credentials. 
2. GLS US will provide testing credentials for both Sandbox and production environment: Account Number, Username, Password

Required GLS US API credentials

• account_number
• username
• passsword

Developer Resources

• Read GLS US docs
• Supported GLS US service types and service options
• AfterShip Shipping GLS US technical support: [email protected]

Updated on: 27/10/2025