The gap in every task system is between having a card and having actually blocked time to do it. A tool that books the time and ties it to the card closes that loop inside one sentence — "put two hours on Thursday against this" — and the calendar entry knows what it is for. The rest is a competent, complete Trello surface; this is the part that does something a board alone cannot. Authorising per workspace is worth using deliberately if you sit in several.
Trello's own endpoint, maintained by Atlassian. It covers the board model completely rather than exposing a read-only slice.
- Boards, lists and cards — view, create, update, move, archive, complete, label
- Checklist management inside cards
- Keyword search across cards and boards
- Planner — view calendar events, create focus time, link it to a card
- Inbox cards, plus member and workspace information
OAuth in the browser, where you choose which workspaces and what permissions to grant. Their listing offers one-click installs for the main clients.
Paste a URL, then authorize — add the endpoint to your client, then approve the OAuth consent screen