Trello

Project Management integration · 43 node(s) including 1 trigger.

00Overview

Every field below is exactly what you see in the Flomation editor. Fields marked ● live picker let you choose from a list pulled live from your account — no IDs to look up.

01Connecting Trello

Add your credentials as a Flomation environment secret, then pick them in each node. The connection fields are:

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
API Token	`secret`	Required	Your Trello API token

Pick an Environment on your flow (Flow Settings → Environment) so the secret resolves. Secret fields never show the value — they reference ${secrets.your_secret}.

02Attachment

Create Attachment

trello/attachment_create · Action

Attach a URL to a Trello card, optionally naming it.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card to attach to
URL	`string`	Required	The URL to attach, e.g. https://example.com/file.pdf
Name	`string`		A display name for the attachment (optional)
MIME Type	`string`		The MIME type of the attachment (optional)

Returns: id, result, tool_result, success, error

Delete Attachment

trello/attachment_delete · Action

Delete an attachment from a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the attachment is on
Attachment ID	`string`	Required	The ID of the attachment to delete

Returns: id, result, tool_result, success, error

Get Attachment

trello/attachment_get · Action

Fetch a single attachment on a Trello card by its ID.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the attachment is on
Attachment ID	`string`	Required	The ID of the attachment to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: id, result, tool_result, success, error

Get Attachments

trello/attachment_get_all · Action

List the attachments on a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card whose attachments to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: results, count, total, tool_result, success, error

03Board

Create Board

trello/board_create · Action

Create a new Trello board. Give it a name and an optional description; use Additional Fields for board preferences (visibility, background, etc.).

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Name	`string`	Required	The name of the new board
Description	`text`		An optional description for the board
Additional Fields	`object`		Extra Trello fields as JSON, e.g. {"prefs_permissionLevel":"org","idOrganization":"..."}

Returns: id, result, tool_result, success, error

Delete Board

trello/board_delete · Action

Permanently delete a Trello board by its ID. This cannot be undone.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to delete

Returns: id, result, tool_result, success, error

Get Board

trello/board_get · Action

Fetch a single Trello board by its ID. Optionally narrow the returned data with a comma-separated Fields list.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to fetch
Fields	`string`		Comma-separated fields to return, e.g. name,desc,url (default: all)

Returns: id, result, tool_result, success, error

Get Boards

trello/board_get_all · Action

List the Trello boards you can access. Optionally filter (e.g. open, closed, starred) and narrow the returned Fields.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Filter	`string`		Which boards to include — choices: All, Open, Closed, Starred
Fields	`string`		Comma-separated fields to return, e.g. name,url (default: all)

Returns: results, count, total, tool_result, success, error

Add Board Member

trello/board_member_add · Action

Add an existing Trello member to a board and set their membership type (normal, admin, or observer).

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to add the member to
Member	`string`	Required · ● live picker	The member to add
Member Type	`string`	Required	The member's role on the board — choices: Normal, Admin, Observer
Allow Billable Guest	`boolean`		Optionally allow adding a billable guest without a confirmation

Returns: id, result, tool_result, success, error

Get Board Members

trello/board_member_get_all · Action

List the members of a Trello board. Leave Return All on (the default behaviour when no Limit is set) to get every member; set a Limit and turn Return All off to cap how many are returned.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board whose members to list
Return All	`boolean`		Return every member (ignores Limit)
Limit	`integer`		Maximum number of members to return

Returns: results, count, total, tool_result, success, error

Invite Board Member by Email

trello/board_member_invite · Action

Invite someone to a Trello board by email address, optionally setting their membership type and full name.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to invite the member to
Email	`string`	Required	The email address to invite
Member Type	`string`		The member's role on the board — choices: Normal, Admin, Observer
Full Name	`string`		The invitee's full name (optional)

Returns: id, result, tool_result, success, error

Remove Board Member

trello/board_member_remove · Action

Remove a member from a Trello board.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to remove the member from
Member	`string`	Required · ● live picker	The member to remove

Returns: id, result, tool_result, success, error

Update Board

trello/board_update · Action

Change an existing Trello board — rename it, edit its description, open/close it, or set any other field via Additional Fields.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to update
Name	`string`		A new name for the board
Description	`text`		A new description for the board
Closed	`boolean`		Close (archive) the board, or reopen it
Subscribed	`boolean`		Subscribe to the board
Additional Fields	`object`		Extra Trello fields as JSON, e.g. {"prefs/background":"blue"}

Returns: id, result, tool_result, success, error

04Card

Create Comment

trello/card_comment_create · Action

Add a comment to a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card to comment on
Comment	`text`	Required	The comment text

Returns: id, result, tool_result, success, error

Delete Comment

trello/card_comment_delete · Action

Delete a comment from a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the comment belongs to
Comment ID	`string`	Required	The ID of the comment to delete

Returns: id, result, tool_result, success, error

Update Comment

trello/card_comment_update · Action

Change the text of an existing comment on a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the comment belongs to
Comment ID	`string`	Required	The ID of the comment to update
Comment	`text`	Required	The new comment text

Returns: id, result, tool_result, success, error

Create Card

trello/card_create · Action

Create a new card in a Trello list. Pick a board to load its lists, choose the list, and give the card a name plus optional description, due date, members, and labels.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the list (used to load the list picker)
List	`string`	Required · ● live picker	The list to create the card in
Name	`string`	Required	The name of the card
Description	`text`		An optional description for the card
Due Date	`datetime`		An optional due date for the card
Position	`string`		top, bottom, or a positive number
Member IDs	`string`		Comma-separated member IDs to assign
Label IDs	`string`		Comma-separated label IDs to attach
Additional Fields	`object`		Extra Trello fields as JSON, e.g. {"urlSource":"https://..."}

Returns: id, result, tool_result, success, error

Delete Card

trello/card_delete · Action

Permanently delete a Trello card by its ID. This cannot be undone.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The ID of the card to delete

Returns: id, result, tool_result, success, error

Get Card

trello/card_get · Action

Fetch a single Trello card by its ID. Optionally narrow the returned data with a comma-separated Fields list.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The ID of the card to fetch
Fields	`string`		Comma-separated fields to return, e.g. name,desc,due (default: all)

Returns: id, result, tool_result, success, error

Update Card

trello/card_update · Action

Change an existing Trello card — rename it, edit the description, set a due date, move it to another list or board, or update members and labels.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The ID of the card to update
Name	`string`		A new name for the card
Description	`text`		A new description for the card
Due Date	`datetime`		A due date for the card
Due Complete	`boolean`		Mark the due date complete
Move to List	`string`	● live picker	Move the card to this list ID
Move to Board	`string`	● live picker	Move the card to this board ID
Position	`string`		top, bottom, or a positive number
Member IDs	`string`		Comma-separated member IDs (replaces the set)
Label IDs	`string`		Comma-separated label IDs (replaces the set)
Closed	`boolean`		Archive the card, or reopen it
Subscribed	`boolean`		Subscribe to the card
Additional Fields	`object`		Extra Trello fields as JSON

Returns: id, result, tool_result, success, error

05Checklist

Create Checklist

trello/checklist_create · Action

Add a checklist to a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card to add the checklist to
Name	`string`	Required	The name of the checklist
Position	`string`		top, bottom, or a positive number
Additional Fields	`object`		Extra Trello fields as JSON, e.g. {"idChecklistSource":"..."}

Returns: id, result, tool_result, success, error

Create Checklist Item

trello/checklist_create_check_item · Action

Add an item to a Trello checklist.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Checklist ID	`string`	Required	The checklist to add the item to
Name	`string`	Required	The text of the checklist item
Checked	`boolean`		Create the item already checked
Position	`string`		top, bottom, or a positive number

Returns: id, result, tool_result, success, error

Delete Checklist

trello/checklist_delete · Action

Delete a checklist from a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the checklist belongs to
Checklist ID	`string`	Required	The ID of the checklist to delete

Returns: id, result, tool_result, success, error

Delete Checklist Item

trello/checklist_delete_check_item · Action

Delete a checklist item from a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the checklist item is on
Checklist Item ID	`string`	Required	The ID of the checklist item to delete

Returns: id, result, tool_result, success, error

Get Checklist

trello/checklist_get · Action

Fetch a single Trello checklist by its ID.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Checklist ID	`string`	Required	The ID of the checklist to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: id, result, tool_result, success, error

Get Checklists

trello/checklist_get_all · Action

List the checklists on a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card whose checklists to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: results, count, total, tool_result, success, error

Get Checklist Item

trello/checklist_get_check_item · Action

Fetch a single item from a Trello card's checklist.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the checklist item is on
Checklist Item ID	`string`	Required	The ID of the checklist item to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: id, result, tool_result, success, error

Get Completed Checklist Items

trello/checklist_get_completed_check_items · Action

List the completed checklist items on a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card whose completed items to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: results, count, total, tool_result, success, error

Update Checklist Item

trello/checklist_update_check_item · Action

Update a checklist item on a Trello card — rename it, mark it complete/incomplete, or reposition it.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Card ID	`string`	Required	The card the checklist item is on
Checklist Item ID	`string`	Required	The ID of the checklist item to update
Name	`string`		A new text for the item
State	`string`		Mark the item complete or incomplete — choices: Complete, Incomplete
Position	`string`		top, bottom, or a positive number

Returns: id, result, tool_result, success, error

06Label

Add Label to Card

trello/label_add_to_card · Action

Attach an existing label to a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the label (used to load the label picker)
Card ID	`string`	Required	The card to add the label to
Label	`string`	Required · ● live picker	The label to add

Returns: id, result, tool_result, success, error

Create Label

trello/label_create · Action

Create a new label on a Trello board with a name and color.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to create the label on
Name	`string`		The name of the label
Color	`string`		The label color — choices: None, Green, Yellow, Orange, Red, Purple, Blue, Sky, Lime, Pink, Black

Returns: id, result, tool_result, success, error

Delete Label

trello/label_delete · Action

Delete a Trello label by its ID.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the label (used to load the label picker)
Label	`string`	Required · ● live picker	The label to delete

Returns: id, result, tool_result, success, error

Get Label

trello/label_get · Action

Fetch a single Trello label by its ID.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the label (used to load the label picker)
Label	`string`	Required · ● live picker	The label to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: id, result, tool_result, success, error

Get Labels

trello/label_get_all · Action

List the labels on a Trello board.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board whose labels to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: results, count, total, tool_result, success, error

Remove Label from Card

trello/label_remove_from_card · Action

Remove a label from a Trello card.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the label (used to load the label picker)
Card ID	`string`	Required	The card to remove the label from
Label	`string`	Required · ● live picker	The label to remove

Returns: id, result, tool_result, success, error

Update Label

trello/label_update · Action

Change a Trello label's name or color.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the label (used to load the label picker)
Label	`string`	Required · ● live picker	The label to update
Name	`string`		A new name for the label
Color	`string`		The label color — choices: None, Green, Yellow, Orange, Red, Purple, Blue, Sky, Lime, Pink, Black

Returns: id, result, tool_result, success, error

07List

Archive/Unarchive List

trello/list_archive · Action

Archive (close) a Trello list, or reopen it, with the Archive toggle.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the list (used to load the list picker)
List	`string`	Required · ● live picker	The list to archive or unarchive
Archive	`boolean`		On = archive the list; off = reopen it (defaults to archive)

Returns: id, result, tool_result, success, error

Create List

trello/list_create · Action

Create a new list on a Trello board.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board to add the list to
Name	`string`	Required	The name of the list
Position	`string`		top, bottom, or a positive number
Additional Fields	`object`		Extra Trello fields as JSON, e.g. {"idListSource":"..."}

Returns: id, result, tool_result, success, error

Get List

trello/list_get · Action

Fetch a single Trello list by its ID. Optionally narrow the returned data with a comma-separated Fields list.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the list (used to load the list picker)
List	`string`	Required · ● live picker	The list to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: id, result, tool_result, success, error

Get Lists

trello/list_get_all · Action

List the lists on a Trello board. Optionally filter by open/closed and narrow the returned Fields.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	Required · ● live picker	The board whose lists to fetch
Filter	`string`		Which lists to include — choices: Open, Closed, All
Fields	`string`		Comma-separated fields to return (default: all)

Returns: results, count, total, tool_result, success, error

Get Cards in List

trello/list_get_cards · Action

List all cards in a Trello list. Optionally narrow the returned Fields.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the list (used to load the list picker)
List	`string`	Required · ● live picker	The list whose cards to fetch
Fields	`string`		Comma-separated fields to return (default: all)

Returns: results, count, total, tool_result, success, error

Update List

trello/list_update · Action

Change an existing Trello list — rename it, archive/reopen it, move it to another board, or reposition it.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Board	`string`	● live picker	The board that owns the list (used to load the list picker)
List	`string`	Required · ● live picker	The list to update
Name	`string`		A new name for the list
Closed	`boolean`		Archive the list, or reopen it
Move to Board	`string`		Move the list to this board ID
Position	`string`		top, bottom, or a positive number
Subscribed	`boolean`		Subscribe to the list

Returns: id, result, tool_result, success, error

08Triggers

Trello Webhook Trigger

trigger/trello_webhook · Trigger

Triggers a flow when something changes on a Trello board, list, or card you watch (a card is created, moved, commented on, and so on). The webhook is registered automatically for the model you choose; set the Trello API Secret to have each delivery's HMAC-SHA1 signature verified.

Field	Type		Details
API Key	`secret`	Required	Your Trello API key
Watch	`string`	Required	The board (or list/card ID) to watch for changes
API Secret	`secret`		Optional — your Trello API Secret, used to verify each delivery's HMAC-SHA1 signature

Returns: content, action_type, action_id, model_id, board_id, card_id, list_id, member, date, body

09Notes & Limitations

Behaviours and constraints worth knowing before you build with these nodes.

Deleting a board, card, comment, label or checklist is permanent and cannot be undone — there is no recycle bin, so archive or close items you may want back rather than deleting them.
Adding a board member with Board Member: Add requires the person to already have a Trello account; use Board Member: Invite with their email address to bring in someone who is not yet a Trello member.
Card members and labels are set by their IDs as comma-separated values, so pair Card actions with Get Board Members and Get Labels (both scoped to the board) to resolve the correct IDs first.
Archiving a list closes it rather than deleting it, and the Archive toggle defaults to on when left untouched — set it explicitly to off when you intend to reopen a list.
The webhook trigger watches an entire board, list or card model, so expect a broad stream of change events and filter downstream for the specific activity your flow cares about.