I

IFTTT Connect API

REST discovered

Details
URL
https://connect.ifttt.com
Docs
https://ifttt.com/docs/connect_api
Authentication
IFTTT Service Key api_key discovered Get key ↗
IFTTT-Service-Key: <credential>

In the IFTTT Platform dashboard, open the API tab for your service and copy the Service Key. The Connect API docs say this key is found under the Service Key heading and is sent in the IFTTT-Service-Key header for backend requests.