Four big firms want to speed the adoption of P2P payment by smartphone.
A report by Reuters claims JPMorgan Chase & Co , Bank of America Corp and Wells Fargo & Co have convened to look at the issue.
They want to harmonise their digital payment systems so users can easily transfer money by phone or email.
The four banks already use a digital system called clearXchange, while 1,400 smaller banks use Fiserv's Popmoney. The idea is to connect them.
Of course, online and mobile banking have made progress but it's mostly in account management, with users checking their balances and setting up standing orders etc.
Using apps to make small transfers is less well-established, and it's why Barclay's PingIt system - debuted earlier this year in the UK but set to go international - has attracted so much interest.
Analyst Aite Group estimates users will transact about $50 billion in payments to other consumers via mobile and online in 2012. That's just six per cent of the $900 billion exchanged in cash and cheques.
Reuters quoted Vincent D'Agostino, head of payments strategy and business development at JPMorgan Chase, who said: "We want to make moving money to people with other banks really seamless."