The International Monetary Fund (IMF) is an intergovernmental organization established in 1945 to promote global economic cooperation and stability, initially with 29 member countries, currently totaling 189. Its key functions include providing financial assistance, facilitating international payments, and offering technical support to member nations during economic crises. The IMF also plays a critical role in determining currency exchange rates and fostering international trade while addressing challenges such as monetary instability and market imbalances.