{"message":"Welcome to BankSystem API","usage":{"auth_required":"Use Authorization: Bearer \u003ctoken\u003e","create_user":{"body":{"email":"string","full_name":"string","password":"string","username":"string"},"endpoint":"/users","method":"POST"},"login":{"endpoint":"/users/login","method":"POST"},"protected_routes":["POST /accounts","GET /accounts","GET /users/:username","POST /transfers"]}}