Greece will meet its financial obligations to the IMF, easing speculation that Athens could default on its debts with unknowable consequences for global markets.
A charm offensive by Greece's prime minister this week calmed bruised relations with Germany, but pressure remains on Athens to deliver on promised reforms.
Greece's Prime Minister Alexis Tsipras will plead with European counterparts at a summit in Brussels to release vital funds to help his debt-laden country.
The Greek parliament overwhelmingly adopted a "humanitarian crisis" bill to help its poorest people, ignoring apparent pressure from the European Union to halt the legislation.
EU Commission chief Jean-Claude Juncker has warned of an alarming lack of progress in talks on Greece's bailout, as Germany raised the spectre of a tumultuous Greek exit from the euro.
Greece's new anti-austerity government will put before parliament early next week its first legislation tackling the "humanitarian crisis" caused by years of cuts.
Prokopis Pavlopoulos, who was elected Greece's new president, is a veteran conservative insider whose selection has raised its share of eyebrows among the ruling left.
Greece was expected to bid for extra debt crisis aid from the EU without strings attached, ahead of a closely-watched ECB meeting on the country's emergency funds.
Greece's radical new government was fine-turning details of a controversial reform deal it hopes to seal with sceptical EU creditors at critical talks.