European stocks rose after the European Central Bank announced the new pledges, but uncertainty clouds the issue.
Mario Draghi said the European Central Bank "continues to act on the assumption that Greece is and will remain a member of the euro area."
These short-term funds were estimated at 7 billion euro ($7.7 billion) and would go toward Greece's July budget.
The IMF opposition to the latest Greek bailout deal reflects years of growing trepidation over Greece's long-term debt sustainability.
Greece agreed to a bailout deal that would see punishing austerity measures imposed on it, but calls are growing for more debt relief.
After the IMF's shock move this week in calling for Greece to be given a write-down on its "highly unsustainable debt," Germany unexpectedly finds itself under pressure.
After scores of Syriza MPs voted against the government-backed international bailout deal, Prime Minister Alexis Tsipras' administration is facing stark challenges in governing.
Many German people have no interest in considering debt forgiveness for Greece.
Demonstrators threw rocks and set off molotovs iin the center of Athens, sending people fleeing through the smog of tear gas.
“What we learned in the last week is that not all the creditors are falling in line.”
Prime Minister Alex Tsripas faces opposition from 107 of 201 of his Syriza party central committee members.
The path to a third bailout is littered with stumbling blocks.
Greece and its creditors have reached an agreement to potentially keep the country in the eurozone, but getting the deal approved by Greek lawmakers remains a challenge.
Greece's creditors have tasked the government with scrounging up $55 billion in assets to serve as collateral -- a total some see as fantastical.
“The stability, economic prosperity [of Greece] is important for many reasons, but of course also important for the security of all our countries.”
A secret International Monetary Fund paper calls for "debt relief on a scale that would need to go well beyond what has been under consideration to date."
The Greece deal calls for "comprehensive pension reform" and is likely to ignite a political firestorm.
Eurozone leaders agree to a third Greece bailout, but reaction in Athens is muted.
Experts question the need for further restrictions on collective bargaining in the cash-strapped European country.
Many experts agree the country needs some kind of forbearance on its massive debt, beyond pension reforms and spending cuts.
The bailout deal reached Monday would require Athens to privatize its $1.5 billion power grid operator, a move Prime Minister Alexis Tsipras previously opposed.
It can’t be as simple as " 'Greek people are lazy’ or ‘the European Union wants to destroy Greece,' ” one student said.