Federal Student Aid is an office of the Department of Education that manages applying for and receiving financial aid for attending school. You might be familiar with their website https://studentaid.gov/ or the FAFSA form (Free Application for Federal Student Aid) that determines financial aid eligibility. They also oversee grants, work-study, scholarships, and other school funding options.
Anyone with federal student loans can access their comprehensive loan history and details through Federal Student Aid by creating an account on their website.