The two development banks signed off on a framework for working together on infrastructure programs over the coming year which will give the World Bank some crucial oversight on how projects are planned and implemented.
In its first year of operation, the AIIB expects to approve about USD 1.2 billion in financing, with a "sizable share" of that to be in joint projects with the World Bank, the two said.
Under consideration are around a dozen projects including water, transportation, and energy developments in East, Southeast and Central Asia.
Critics led by the United States worried that the AIIB would set much lower standards for projects that would undermine principles of social, environmental and economic sustainability adhered to by the World Bank and other multilateral development finance institutions.
Also Read
The AIIB was formally created in December with 57 members, including India, and China the largest shareholder with 30 per cent.
But the United States and Japan declined to join, reserving their support for the World Bank and the Asian Development Bank, where Washington wields great influence.
World Bank President Jim Yong Kim called the agreement "an important first step toward working with a new partner to address the world's huge infrastructure needs.