Mastercard <em>PayPass</em> Documentation

ALERT: Due to licensing changes and rebranding efforts, the MasterCard contactless (formerly known as PayPass) documentation has been moved to the Chip Information Center located on MasterCard Connect and to a new restricted site, Chip and Chip Related Publications, located on MasterCard Connect.

Effective immediately, if you are an issuer, acquirer, or processor, please begin accessing Publications> Chip Information Center for the most updated MasterCard contactless documentation.

If you are a vendor, please ensure you have the appropriate development licenses, register for MasterCard Connect if needed, and order Chip and Chip Related Publications in the MasterCard Connect store.