Getting a cash advance directly on an SSI (Supplemental Security Income) card may not be possible, as these cards typically receive federal benefit payments and are not linked to a credit line for cash advances. However, some payday lenders or other financial institutions might provide short-term loans or cash advances to individuals with SSI, considering the regular payments as income. It's crucial to understand the terms and potential fees, as these types of loans can be expensive and might impact your overall financial stability.