Cielo

This extensions allows your store to accept payments using credit cards with Cielo.

This module integrates Magento with a Cielo Web Service payment gateway, without intermediator payment gateway, making the taxes less expensive. It enables payment with credit and debit cards, accepting Mastercard, Visa, American Express, Dinerns Club, Discover and Elo. That module permits the use of the modalities Buy Page Loja and Buy Page Cielo.

More details: http://www.cerebrum.com.br/website/?p=535