GSO Tracking API

GSO United States

About GSO

Golden State Overnight (GSO) offers Priority Overnight Delivery to every address in California and select regions of Western Nevada and Arizona.

Auto-Track GSO Shipments

Our Multi-Carrier Tracking API will auto-track your GSO shipments

GSO Post-Shipping Automation

Fully integrate GSO tracking into your WooCommerce or Shopify store admin

GSO Delivery Notifications

Send your customers automated GSO shipment status & delivery emails or SMS

GSO Tracking on Your Store

Direct your customers to track GSO shipments on a tracking page on your store