| Connected account | The connected account to use for the request | Connected Account | Yes | |
| Card ID | The ID of the card | Text (Short) | Yes | |
| Attachment cover | The ID of the image attachment the card should use as its cover, or null for none | Text (Short) | No | |
| Board ID | The ID of the board the card should be on | Text (Short) | No | |
| Closed? | Whether the board is closed | True/False | No | |
| Description | New description of the board | Text (Long) | No | |
| Due date | A due date for the card | Datetime | No | |
| Due complete? | Whether the card is completed | True/False | No | |
| Label IDs | Comma-separated list of label IDs to set on card | Text (Long) | No | |
| List ID | The ID of the list the card should be in | Text (Short) | No | |
| Member IDs | Comma-separated list of member IDs to set on card | Text (Long) | No | |
| New board name | New name of the board | Text (Short) | No | |
| Position | The position of the card. top, bottom, or a positive float | Text (Short) | No | |
| Subscribed? | Whether the acting user is subscribed to the board | True/False | No | |