This developer guide shows how to access Quantium shipping API via Postmen, and Quantium web XML services via Ezyparcels API. See also the list of required API credentials / keys for Quantium integration.

Get Quantium Developer Credentials

Email Quantium sales representative and cc
Tell Quantium you need to obtain Quantium Ezyparcels API credentials. 

Quantium will provide Ezyparcels API Documentation (Developer guide), and testing credentials for both Sandbox and production environment: Username and Password

Login to your Quantium account at their EzyParcels web portal to set default label size (under Admin > My Preferences)

Copy Shipby address code (under Admin > My Send by addresses)

Required Quantium API credentials

Read Quantium API docs
Supported Quantium service types
Postmen Quantium technical support:
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