You can use Jira REST API to work with the checklists.
Now the Smart Checklist dedicated REST API is available! For more complex use cases and integrations - follow the instructions Smart Checklist REST API v1.0
You can read/write checklists by using Jira REST API accessing a “
Checklists” custom field or
com.railsware.SmartChecklist.checklist issue property
Read more about custom fields used by Smart Checklist addon and their setup here: Custom Fields
Get checklist value rom existing Jira issue
Use the Get Issue Jira REST API
Create Jira issue with the checklist applied
Use the Create Issue Jira REST API
Set the checklist for existing Jira issue
Use the Edit Issue Jira REST API
Since Smart Checklist version 5.0.0 we’ve deprecating
com.railsware.SmartChecklist.checklist issue property as the main checklist storage.