Installment Transaction Service
Authentication method for Installment Transaction Service
Available for use by:
Acquirer banks
Merchants
X-pay Token
Some Visa Developer APIs require an API Key-Shared Secret Authentication, which Visa refers to as x-pay-token. To invoke an API using x-pay-token, you will need an API Key and a Shared Secret, which is provided via the link below.
Visit the X-pay Token Guide to learn more.