The Miami Postal Service Credit Union All Credit Levels is a cdfi lender from Miami Postal Service Credit Union. The ongoing APR is 5.24 %. This product reports activity to your personal credit report. Miami Postal Service Credit Union is a financial institution that provides a range of banking services and lending products to its members in Miami, FL. It serves individuals and families within the community, offering various loan options to meet their financial needs. Services include: auto loans, home equity loans, personal loans, credit cards. US Treasury certified CDFI Credit Union in Miami, FL. Membership required.