Articles on: Shipper Account

Mondial Relay Developer Guide & API Credentials

Overview

This developer guide shows how to access Mondial Relay shipping API via AfterShip Shipping. See also the list of required API credentials / keys for Mondial Relay integration.

Get Mondial Relay Developer Credentials

Email Mondial Relay API support and cc support+shipping@aftership.com. Tell Mondial Relay you need to obtain API credentials to access Mondial Relay API.
Mondial Relay will provide credentials for both Sandbox and Production environment: Key and Merchant ID

Required Mondial Relay API credentials

Credentials	Environment	Description
Key	Sandbox / Production	Your Mondial Relay Private
Merchant	Sandbox / Production	Merchant ID to access Mondial Relay web service and Postmen API.

Mondial Relay Developer Resources

Read Mondial Relay docs
Supported Mondial Relay service types and service options
AfterShip Shipping Mondial Relay technical support: support+shipping@aftership.com

Updated on: 27/10/2025