openapi: 3.1.0
info:
  title: Kanban Tool API v3 Attachments Boards API
  description: Minimal OpenAPI 3.1 description of the Kanban Tool REST API v3 covering users, boards, tasks, subtasks, comments, attachments, and time trackers.
  version: 3.0.0
servers:
- url: https://YOUR_DOMAIN.kanbantool.com/api/v3
  description: Kanban Tool account API base
tags:
- name: Boards
paths:
  /boards/{board_id}/preload.json:
    parameters:
    - name: board_id
      in: path
      required: true
      schema:
        type: string
    get:
      summary: Get board overview
      operationId: getBoardPreload
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
      tags:
      - Boards
  /boards/{board_id}.json:
    parameters:
    - name: board_id
      in: path
      required: true
      schema:
        type: string
    get:
      summary: Get board with full details
      operationId: getBoard
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
      tags:
      - Boards
  /boards/{board_id}/changelog.json:
    parameters:
    - name: board_id
      in: path
      required: true
      schema:
        type: string
    get:
      summary: List board changelog entries
      operationId: getBoardChangelog
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
      tags:
      - Boards
x-generated-from: https://kanbantool.com/developer/api-v3
x-generated-by: claude-crawl-2026-05-08