Introduction

PayMaster API lets merchants integrate with the PayMaster Gateway using HTTPS GET/POST URL parameters, without embedding the Merchant Plug-In (MPI).

Use the gateway field variable names from the PayMASTER Gateway Specification (for example h001_MTI, f001_MID, f263_MRN) as query parameters on the PayMaster endpoint URLs.

UPP Payment

Debit and credit cards

DuitNow Pay

Online DuitNow

For SDK / library-based integration, see PayMaster Plugin.