List active tasks with optional filters (project, section, label, or Todoist filter query)

Get a single task by ID

Create a new task with optional due date, priority, labels, and project/section assignment

Update an existing task

Mark a task as completed

Reopen a completed task

Delete a task permanently

Move a task to a different project, section, or parent

Create multiple tasks at once (uses parallel API calls)

Search for tasks by content using Todoist search filter

List all projects

Get a project by ID

Create a new project

Update a project

Delete a project permanently

List all sections (optionally filtered by project)

Get a section by ID

Create a new section in a project

Update a section name

Delete a section

List comments for a task or project

Get a comment by ID

Create a comment on a task or project with optional prefix tags

Update a comment

Delete a comment

Add a research note to a task (prefixed with [Research])

Add context information to a task (prefixed with [Context])

List completed tasks (uses Sync API) with optional filters

Get statistics about completed tasks

List all personal labels

Create a new label

Update a label

Delete a label