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ActionTrelloUpdated May 2026

How do I add an item to a Trello checklist?

Short answer: Drop the "TrelloAdd Checklist Item" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Inputs

The fields this action accepts.

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

FieldTypeRequiredDescription
Checklist ID
checklistId
stringRequiredChecklist ID
Item Name
name
stringRequiredItem Name
Pre-checked
checked
booleanOptionalPre-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.

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 workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.
Does Add Checklist Item support batch operations?
Yes. Run Add Checklist Item inside a Loop node to process arrays. Tiny Command handles Trello's rate limits automatically so you don't have to throttle manually.
More actions

Other Trello actions.

Send add checklist item from your workflows.

Triggered by anything in the catalog. Free tier available. No credit card.