Amazon's tentacles have reached a new corner of the e-commerce world.
The company launched a new service Monday allowing customers to automatically pay recurring charges, like monthly subscription fees or phone bills, using their Amazon log-in details.
Amazon said it had been testing the service in recent months with fledgling mobile carrier Ting to "impressive" results.
With more than 244 million active customer accounts, Amazon already has a massive base of potential users for the service. The effort represents a new front in its assault on eBay, which owns online payments service PayPal.
The launch comes ahead of an event scheduled for June 18 in which CEO Jeff Bezos is expected to unveil a 3-D smartphone, potentially giving Amazon another boost in mobile payments.
The sector has drawn interest from a number of large tech companies of late. Google has for several years offered a phone-based payment system known as Google Wallet that works with certain phones using the company's Android operating system.