APIs used in Integration

API	Purpose
Collect Payment API – Server-to-Server	Initiate an S2S=4 payment request; the customer receives an OTP on the merchant or PayU page instead of being redirected to the bank's 3DS page.
Submit OTP API	Submit the OTP entered by the customer on the `postUrl`/`acsTemplate` page to complete card authentication.
Resend OTP API	Resend OTP when the customer enters an incorrect or expired OTP. Used in: all Native OTP Flow integration guides.
Get Checkout Details API	Check customer EMI eligibility before initiating Debit Card EMI or Cardless EMI native OTP payments.
Verify Payment API	Server-side reconciliation of transaction status after OTP submission.

Updated about 1 hour ago

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