The International Monetary Fund said that Greece may need debt relief but rejected news reports that it had pushed for it at a eurozone meeting last month.
Greek Finance Minister Yanis Varoufakis insisted in a German newspaper interview that he is still in charge of Greece's team handling crucial talks with creditors.
Greece's president said he hoped to meet his German counterpart soon for talks on Athens' demands for reparations over the Nazi occupation of Greece during World War II.
European ministers heaped pressure on Greece to speed up negotiations to unblock critically needed bailout funds and avert a dangerous default.
The euro fell against the dollar as Greece ordered all public agencies to pony up their financial reserves to help the debt-riddled government meet urgent payments.
US President Barack Obama and Greek Finance Minister Yanis Varoufakis had a "brief interaction," after the finance chief caused a stir by saying he would meet with the US leader.
Greek Finance Minister Yanis Varoufakis said that his country is determined to remain in the eurozone.
Greece is due to make its 459 million euro ($495 million) April loan payment to the IMF following days of uncertainty.
Greek Prime Minister Alexis Tsipras was due to meet Kremlin strongman Vladimir Putin in Moscow.
Greece has agreed to repay its debt to the International Monetary Fund by April 9, IMF chief Christine Lagarde said after a meeting with Greek Finance Minister.
Greece will meet its financial obligations to the IMF, easing speculation that Athens could default on its debts with unknowable consequences for global markets.
Finger-pointing between Germany and Greece will only play into the hands of Europe's enemies, Greek Finance Minister Yanis Varoufakis saidю
Greek Prime Minister Alexis Tsipras said in remarks published he hoped key talks with international creditors would yield a "happy ending".
A major exhibition on the human body in ancient Greek art is to open at the British Museum from Thursday, exploring notions of ideal beauty.
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 has agreed to give creditors a new list of reforms within days in order to secure bailout funds.
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 has railed against what it sees as German dominance since the 2010 start of the eurozone financial crisis.