Hello Todoist API users and partners,
As v2 is the current stable version for the REST API (you can learn more about it at developer.todoist.com/rest/v2/), we are going to start the deprecation of its predecessor.
In case you have an application making API calls to any version less than v2, we strongly recommend you to migrate to v2 as soon as possible to avoid downtime after Nov 30, 2022.
Since today, we're returning a “warning” header for all API requests using a version less than v2:
$ curl -vs https://api.todoist.com/rest/v1/projects -H "Authorization: Bearer $token" |& grep warning
< warning: 119 - "Deprecated API version. Will be removed on 2022-11-30"
Please contact us if you need any additional information about the API and how to migrate.
Stay safe and productive,
The Todoist Team