3DS Server APIs

• 3DS 2.x API
• 3DS 1.0 / Union Pay API

Here you can see how our 3DS Server is involved within the 3D-Secure authentication flow for both protocol versions, 3DS 2.x API and 3DS 1.0 / Union Pay API. Diving deeper with the actual process of transaction authentication with 3DS 2.x by explaining 3DS Versioning (needed to identify which protocol version a card is enrolled for) and showing Authentication Request and Response Models in 3DS Authentication. You’ll also find code snippets for several important fields related to card account, cardholder, merchants, purchase and more.