ActionTrelloUpdated September 2026

How do I add an item to a Trello checklist?

Short answer: You can add checklist item in Trello by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Trello Add Checklist Item action to a workflow, map its 3 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Add Checklist Item in Trello — start free All 21 Trello actions

Add Checklist Item in Trello — start free

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Checklist ID checklistId	string	Required	Checklist ID
Item Name name	string	Required	Item Name
Pre-checked checked	boolean	Optional	Pre-checked

Sample request

{
  "checklistId": "{{trigger.checklistId}}",
  "name": "{{trigger.name}}",
  "checked": "{{trigger.checked}}"
}

Returns

{
  "id": "item123",
  "name": "Write tests",
  "state": "incomplete"
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Add Checklist Item.

Any of these apps can fire this action as part of a workflow.

Google Sheets → Trello

2 Google Sheets triggers

HubSpot → Trello

18 HubSpot triggers

FAQ

Questions about Add Checklist Item.

What does the Add Checklist Item action do in Trello?

Adds an item to an existing Trello checklist on a card with optional pre-checked state. Used for templated work breakdowns or for capturing follow-ups from a meeting.

What inputs does Add Checklist Item require?

Required: Checklist ID, Item Name. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Trello returns an error?

The run history shows the failed step with its input and the error message Trello returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does Add Checklist Item support batch operations?

Run Add Checklist Item inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Trello's rate limits.

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