Asian stocks nudged up on Friday, helped by a rise in Chinese shares, while the dollar extended gains versus the euro and yen as economic indicators bolstered expectations for a US rate hike by year-end.

MSCI's broadest index of Asia-Pacific shares outside Japan was up 0.3 per cent. The performance of volatile Chinese stocks was eyed warily - mainland indexes began higher as a futures contract on the CSI300 Index set for delivery by the close of business finally rising above the level of its benchmark. Shanghai shares were up 1.4 per cent as of 0221 GMT.

Japan's Nikkei rose 0.2 per cent on a softer yen, while South Korea's Kospi shed 0.6 per cent. Australian shares were little changed.

Wall Street gained overnight, with the Nasdaq up more than 1 per cent to a record high after earnings reports from eBay and Netflix boosted optimism.

Moves in Europe on Thursday to reopen funding to near-bankrupt Greece also improved risk sentiment. Greece will receive bridge loans, enabling it to make a bond payment to the European Central Bank on Monday and clear arrears with the International Monetary Fund.

The lessening of foreseeable Greek risk also continued to push the euro lower, with focus back on U.S. and European monetary policy divergences.

"We have some sympathy with the argument that 'Grexit' would at least have resolved the doubts over Greece's position and that the euro should eventually end up stronger without its weakest member," analysts at Capital Economics wrote.

"The corollary is that a temporary deal which keeps Greece in the euro but fails to tackle the bigger issues, notably the need for a massive write-down of debt, simply prolongs the uncertainty and keeps the currency on the defensive."

The euro hovered close to a seven-week low of $1.0855 it tumbled to overnight. The dollar touched a three-week high of 124.235 yen, receiving a boost against its peers after Thursday's lower US jobless claims reinforced market expectations for a rate hike this year.

The dollar index stood at 97.56 after surging to a seven-week peak of 97.756 overnight.

In commodities, oil prices rose slightly in thin trade in Asia, underpinned by a power outage at Britain's largest oilfield, though risks of oversupply following the Iranian nuclear deal and mixed economic data held back prices.

US crude edged up 0.5 per cent to $51.14 a barrel and Brent gained 0.4 per cent to $57.16 a barrel.