Todoist API
Task & Project Tools Free key (no card)
AuthenticationFree key (no card)
Rate limitFree; 450 requests per 15 minutes. Plenty for personal use
Documentation: developer.todoist.com · Checked Sep 13, 2026
About
Todoist's API (v1) gives programmatic access to your tasks, projects, labels, reminders, and comments. It's free to use with any Todoist account. You just grab a personal API token from settings. Great for personal productivity hacks, like adding tasks from email, voice notes, or other apps without opening Todoist.
Details
Free to start. You may need a free key, but no credit card.
Auth: Free key (no card)
Rate limit: Free; 450 requests per 15 minutes. Plenty for personal use
Verified: 2026-09-13
Best for: personal developer business
Setup
- Sign up for free at todoist.com and open the app
- Go to Settings → Integrations → Developer and copy your personal API token
- Send requests with the header: Authorization: Bearer <redacted>
- Try creating a task with the example call in their docs
- Add it to your automations (e.g. Zapier, Make, or a simple script)
Example
POST https://api.todoist.com/api/v1/tasksUse cases
- Add tasks to Todoist straight from your email or a web form
- Log completed tasks into a spreadsheet or journal automatically
- Build a personal dashboard showing today's tasks anywhere