Step 1 — Get your API key and base URL
Settings → Quick Capture Methods → API key (extension + developer API). Copy the 16-character key and the API base URL shown underneath it. Treat the key like a password. API access needs Pro or Teams.
Step 2 — In Zapier / Make / n8n
Use the Webhooks by Zapier (or HTTP Request in Make/n8n) module.
Create a task
```
POST <your API base URL>
X-API-Key: YOUR_KEY
Content-Type: application/json
{ "title": "Follow up with {{lead_name}}", "priority": 2, "due_date": "2026-10-01" }
```
Full request reference, including reading, updating and deleting tasks: /api.
Trigger from LemTask events
Settings → Integrations → Outgoing Webhooks → add a URL. Choose events: *task.created*, *task.completed*, *habit.streak_broken*, etc.
Popular recipes
- New Gmail with label → LemTask P1 task
- LemTask task completed → post to Slack channel
- Calendly booking → LemTask *Prep for {{invitee}}* task 24h before
- LemTask habit streak hits 30 → send yourself a reward email
Limits: reads return up to 200 tasks per request. There is no published per-minute quota, but heavy polling may be throttled — batch where you can.