The Neuroscience Gateway (NSG) portal facilitates access and use of National Science Foundation (NSF) High Performance Computing (HPC) resources by neuroscientists. It will offer free computer time to neuroscientists acquired via the supercomputer time allocation process managed by the Extreme Science and Engineering Discovery Environment (XSEDE) Resource Allocation Committee (XRAC). The portal provides access to the popular computational neuroscience tools installed on various HPC resources. It also provides a community mailing list for neuroscientists to collaborate and share ideas.