mSIGNIA’s Payment Simulator (or PaySim) is a complete, end-to-end payment simulation platform for testing compliance and interoperability including enabling 3rd-party product demonstration for various payment initiatives such as EMV 3D-Secure versions 2.1 and 2.2, SCA, FIDO, and W3C related Web Authentication and Payment Request APIs.
The PaySim OOB App allows simulating Out Of Band (OOB) authentication with the PaySim Merchant app.