Apple Pay session
Create an Apple Pay merchant session for the payment sheet. Called from the browser to validate the merchant with Apple.
Create an Apple Pay merchant session for the payment sheet. Called from the browser to validate the merchant with Apple.
SDK endpoint to pay a charge. Used by A55Pay SDK's payV2() method. Public endpoint — no Bearer token required.
3DS Device Data Collection setup. Called by A55Pay.authentication() to initialize the 3DS fingerprinting process.
Simulate installment options for a charge amount. Returns available installment plans with per-installment values and interest rates.
3DS challenge validation callback. Called after the payer completes the issuer's 3DS challenge to finalize authentication.