| Connected account | The connected account to use for the request | Connected Account | Yes | |
| Board ID | The ID of the board that card belongs to | Text (Short) | Yes | |
| List ID | The ID of the list that card belongs to | Text (Short) | Yes | |
| Card ID | The ID of the card that checklistItem belongs to | Text (Short) | Yes | |
| Checklist ID | The ID of the checklistItem that card belongs to | Text (Short) | Yes | |
| Checklist item ID | The ID of the checklistItem item to update | Text (Short) | Yes | |
| Checklist item title | The new title for the checklist item | Text (Short) | No | |
| Finished? | Whether the item is checked | True/False | No | |