List all boards the user has access to

Set the active board for future operations

Get information about the currently active board

List workspaces the user has access to. If TRELLO_ALLOWED_WORKSPACES is configured, only allowed workspaces are returned.

Set the active workspace for future operations

List all boards in a specific workspace

Create a new Trello board optionally within a workspace

Fetch recent activity on the Trello board

Retrieve all lists from the specified board

Add a new list to the specified board

Update a list name, archive state, subscription state, or board. Use update_list_position for moving a list within a board.

Update the position of a list on the board. Trello uses fractional indexing: each list has a float position, and to place a list between two others, use the average of their positions (e.g., between pos 1024 and 2048, use 1536). Use "top"/"bottom" shortcuts to move to the edges.

Send a list to the archive on a specific board

Subscribe or unsubscribe from watching a list for activity notifications

Fetch cards from a specific Trello list on a specific board. Descriptions are previewed by default to keep responses compact; set fields without "desc" to omit descriptions, or increase descMaxLength/omitDescThresholdBytes and use get_card for full details.

Fetch all cards assigned to the current user

Search card names and descriptions by text, on one board or on every board the user can reach. Returns the name, number, board, list and link of each match.

Get detailed information about a card, by its ID or by its number on a board. The number is the one Trello shows on the card and a branch name carries, as 53 in fix/53-chat-button.

Get the history/actions of a specific card

Add a new card to a specified list on a specific board

Add up to 50 cards to a list, in order. Every card is checked first (the list exists, each label is on the board, each date is valid, each description is 2400 characters at most), so bad input creates nothing. A temporary Trello or network fault is retried. Any other failure stops the batch, and the reply says which cards were created and which were not: ask the user how to resolve it before retrying.

Update an existing card's details. Name the card by its ID or by its number on a board.

Move a card to a different list, potentially on a different board

Copy/duplicate a Trello card to any list (even on a different board). Copies all properties by default including checklists, attachments, comments, labels, etc.

Send a card to the archive. Name the card by its ID or by its number on a board.

Subscribe or unsubscribe from watching a card for activity notifications

Retrieve all comments from a specific Trello card

Add the given text as a new comment to the given card

Update the given comment with the new text

Delete a comment from a Trello card

Create a checklist on a card, with its items in the same call. Name it "Acceptance Criteria" for acceptance criteria.

Get all items from a checklist by name

Get a complete checklist with all its items and completion percentage

Get a card's (or board's) acceptance criteria. Matches a checklist named "Acceptance Criteria", "AC", "DoD", or "Definition of Done" (case-insensitive); first match in that order wins. Returns a {found: true|false} union; read reason when not found.

Search for checklist items containing specific text in their description

Add a new item to a checklist

Update a checklist item name, state, position, due date, reminder, or assigned member

Delete a checklist item from a card

Copy a checklist (with all its items) from one card to another. Works across different boards.

Attach something to a card. The start of source decides what happens: https:// stores a link, and the file stays at that URL; file:// uploads a local file from the folder in TRELLO_ATTACH_ROOT, and is refused when that is not set; data:;base64, uploads inline data.

Download an uploaded attachment from a card. Returns base64-encoded data that can be saved or viewed. A link attachment has no file on Trello, and a file over 5 MB would flood the context, so both are refused.

Get all labels of a specific board

Create a new label on a board

Update an existing label

Delete a label from a board

Add one label to a card. The labels already on the card stay. Get label IDs from get_board_labels.

Remove one label from a card. The other labels on the card stay.

Get all members of a specific board

Assign a member to a specific card

Remove a member from a specific card

Get all custom field definitions on a board. Returns field IDs, names, and types. For dropdown/list fields, also returns available options with their IDs. No tool creates a field, so a board without fields returns an empty list.

Set or clear a custom field value on a card. Use get_board_custom_fields first to find field IDs and types. Value format depends on type: text=any string, number=numeric string, checkbox="true"/"false", date=ISO 8601 string, list=option ID from get_board_custom_fields. To clear a field, set type to "clear" and omit value.