openapi: 3.1.0
info:
  title: Todoist Comments Sections API
  description: The Todoist API v1 provides programmatic access to task management, projects, sections, labels, reminders, comments, workspaces, and more. Supports OAuth 2.0 and personal API tokens. Includes incremental sync via the /sync endpoint.
  version: '1.0'
  contact:
    name: Todoist Developer Support
    url: https://developer.todoist.com/
  termsOfService: https://doist.com/terms-of-service
  license:
    name: Todoist API Terms
    url: https://developer.todoist.com/
servers:
- url: https://api.todoist.com/api/v1
  description: Production
security:
- bearerAuth: []
tags:
- name: Sections
  description: Section management operations
paths:
  /sections:
    get:
      operationId: listSections
      summary: List Sections
      description: Returns all sections optionally filtered by project.
      tags:
      - Sections
      parameters:
      - name: project_id
        in: query
        schema:
          type: string
      responses:
        '200':
          description: List of sections
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Section'
    post:
      operationId: createSection
      summary: Create Section
      description: Creates a new section in a project.
      tags:
      - Sections
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateSectionRequest'
      responses:
        '200':
          description: Created section
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Section'
  /sections/{id}:
    get:
      operationId: getSection
      summary: Get Section
      description: Returns a single section by ID.
      tags:
      - Sections
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Section details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Section'
    post:
      operationId: updateSection
      summary: Update Section
      description: Updates a section's properties.
      tags:
      - Sections
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
      responses:
        '200':
          description: Updated section
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Section'
    delete:
      operationId: deleteSection
      summary: Delete Section
      description: Deletes a section and moves its tasks to the project root.
      tags:
      - Sections
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '204':
          description: Section deleted
components:
  schemas:
    CreateSectionRequest:
      type: object
      required:
      - project_id
      - name
      properties:
        project_id:
          type: string
        name:
          type: string
        order:
          type: integer
    Section:
      type: object
      properties:
        id:
          type: string
        project_id:
          type: string
        order:
          type: integer
        name:
          type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Personal API token or OAuth 2.0 access token