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Overview of How to Set Up Your Visa Acceptance Solutions
Account
Visa Acceptance Solutions
AccountThis overview lists the tasks you must complete in order to set up your
Visa Acceptance Solutions
account for sending and receiving REST API messages using either JSON Web Token
messaging or HTTP signature messaging.WARNING
By
September 2026
, all merchants using HTTP signature
messaging must migrate to JSON Web Token (JWT) messaging in order to support
message-level encryption (MLE). You risk transaction failures if you do not
implement this update. If you are setting up your system to be REST-compliant for
the first time, Visa Acceptance Solutions
recommends using JWT messaging.Figure:
Set Up Your
Visa Acceptance Solutions
Account
To set up JSON web token messaging using P12 certificates, see Set Up a JSON Web Token Message Using P12 Certificates.
To set up JSON web token messaging using shared secret key pairs, see Set Up a JSON Web Token Message Using Shared Secret Keys.
To set up an HTTP signature messaging, see Set Up an HTTP Signature Message [DEPRECATING].