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Codex and Trello

Connect Codex to Trello

Give your Codex agent access to Trello in Melso — 322 tools it can call while it works through a task.

Set it up in Melso

  1. 1In Melso, open Settings → Agent Apps and hit Connect on Trello.
  2. 2Finish the OAUTH1 sign-in in the window that opens. Melso stores the connection, not your credentials.
  3. 3Open your Codex agent, go to its Agent Apps tab, and allow Trello.
  4. 4Give the agent a task. It calls Trello itself when the work needs it.
Get Melso
What you get

What Trello gives your agent

The tools, permissions, and events Trello exposes — the same ones your agent can use once the app is authorized.

What you sign in with

Trello connects with OAUTH1.

  • Consumer key
  • Consumer secret

Permissions

readwriteaccount

Tools Trello exposes

TRELLO_ADD_BOARDS

Add board

Creates a new Trello board; the 'name' parameter is required for creation, and various preferences can be customized or cloned from a source board.

TRELLO_ADD_BOARDS_LISTS_BY_ID_BOARD

Add new list to board (Deprecated)

DEPRECATED: Use TRELLO_LIST_CREATE_LIST instead. Creates a new, empty list on a specified, existing Trello board, typically used as a column or category for organizing cards.

TRELLO_ADD_CARDS

Add card

Creates a new card in a Trello list. Only `idList` is required; `idBoard` is optional as the API determines the board from the list.

TRELLO_ADD_CARDS_ACTIONS_COMMENTS_BY_ID_CARD

Add comment to card

Adds a new text comment, which can include @mentions, to a Trello card specified by its ID; file attachments are not supported via this action.

TRELLO_ADD_CARDS_ATTACHMENTS_BY_ID_CARD

Add attachment to card

Adds an attachment to a Trello card by `idCard`; specify either a `file` to upload or a `url` to link, but not both.

TRELLO_ADD_CARDS_CHECKLISTS_BY_ID_CARD

Add checklist to card via id

Adds a checklist to a Trello card: use `value` to add a specific existing checklist, `idChecklistSource` to create a new checklist by copying an existing one (optionally using `name` for the new checklist's name), or `name` to create a new empty checklist from scratch.

TRELLO_ADD_CARDS_ID_LABELS_BY_ID_CARD

Add label to card

Adds an existing label to a Trello card; `idCard` identifies the card and `value` is the ID of the label to add. Both card and label must already exist.

TRELLO_ADD_CARD_VOTE

Add member vote to card

Casts a 'yes' vote for a specified member on a Trello card; a member can only vote once per card.

Events your agent can react to

TRELLO_ARCHIVED_CARD_TRIGGER

Card Archived Trigger

Triggered when a card is archived in the specified board

TRELLO_NEW_ACTIVITY_TRIGGER

New Activity Trigger

Triggered when there is activity in Trello.

TRELLO_NEW_BOARD_TRIGGER

New Board Trigger

Triggered when a board is created in the specified workspace

TRELLO_NEW_CARD_TRIGGER

New Card Trigger

Triggered when a card is created in the specified board

TRELLO_UPDATED_CARD_TRIGGER

Card Updated Trigger

Triggered when a specific card is updated

Example prompts

  • Use Trello to check recent changes and summarize them in the issue.
  • When a customer writes in, pull their data from Trello before replying.
  • Audit our open items in Trello and notify the channel of anything stale.

Useful links

  • Trello website
  • Melso Agent Apps docs

More in Project Management

  • Notion
  • Linear
  • Jira
  • Wrike
  • Asana
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