Visa's RFID payments infrastructure is open for business, but analysts say it's up to merchants to make the move.

The nation's largest credit card issuer announced the availability of Visa Contactless on Thursday, in advance of the RFID World trade show next week. Visa was the last of the big three payment processors to provide the works for credit card issuers and merchants to let consumers pay with a wave of their hands.

Proximity payment systems, also known as contactless payments, use very short-range radio frequency technology to send information from a chip in a credit card, phone or fob to a reader. The reader transmits the information to the merchant's standard credit card processing system. The technology is similar to RFID used in the supply chain.

Some national retailers have signed on. McDonalds plans to roll out MasterCard PayPass throughout North America this year, while pharmacy giant CVS plans to offer American Express' ExpressPay system in most of its retail stores.

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