# Todoist Sync API v9

**Canonical:** https://apis.io/apis/todoist/todoist-sync-api-v9/  
**Provider:** Todoist — https://apis.io/providers/todoist/  
**Base URL:** https://api.todoist.com/sync/v9  
**Documentation:** https://developer.todoist.com/sync/v9/

Todoist Sync API v9 is one of 11 APIs that [Todoist](https://apis.io/providers/todoist/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Sync, Productivity, and Task. The published artifact set on APIs.io includes API documentation and an API reference.

The Todoist Sync API is designed for clients maintaining a local representation of user data, allowing incremental synchronization of projects, tasks, labels, filters, and reminders. Supports batch commands for efficient updates.

## Machine-readable artifacts (2)

- **Documentation** — https://developer.todoist.com/sync/v9/
- **Reference** — https://developer.todoist.com/sync/v9/

## Other Todoist APIs (10)

- [Todoist REST API v2](https://apis.io/apis/todoist/todoist-rest-api/)
- [Todoist Comments API](https://apis.io/apis/todoist/todoist-comments-api/)
- [Todoist Labels API](https://apis.io/apis/todoist/todoist-labels-api/)
- [Todoist Projects API](https://apis.io/apis/todoist/todoist-projects-api/)
- [Todoist Reminders API](https://apis.io/apis/todoist/todoist-reminders-api/)
- [Todoist Sections API](https://apis.io/apis/todoist/todoist-sections-api/)
- [Todoist Sync API](https://apis.io/apis/todoist/todoist-sync-api/)
- [Todoist Tasks API](https://apis.io/apis/todoist/todoist-tasks-api/)
- [Todoist User API](https://apis.io/apis/todoist/todoist-user-api/)
- [Todoist Workspaces API](https://apis.io/apis/todoist/todoist-workspaces-api/)

## Tags

Sync, Productivity, Task

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/todoist/todoist-sync-api-v9/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/todoist/.