the difference in API endpoints

[Jean Wang]

Hi, 

I'm new to Jira API. We used Jira cloud. I have received two API documentations from internal users:

https://developer.atlassian.com/cloud/jira/software/rest/api-group-issue/

https://developer.atlassian.com/cloud/jira/platform/rest/v3/

I'm wondering which documentation is more relevant? I need to export data like issue type, story points (planned, actual), and issue hierarchy level into Power BI. 

[Nic Brough -Adaptavist-]

Welcome to the Atlassian Community!

Both.  They are for different parts of the system.

You should use the most appropriate API for your needs - the Jira Core API covers issues in general, along with all the stuff like workflow, fields, users, etc, and then the Jira Software API covers the layers of stuff Jira Software adds (primarily Kanban and Scrum boards), and the JSM API covers the JSM layers (queues, SLAs, etc)