It is always ON by default now.From 2.9 release notes:
Remote API setting always on
We removed the Remote API setting from the Server Settings page. From this release onwards the Remote APIs will always be accessible, to make the JIRA integration straightforward.
Over the next several weeks we'll be sharing some of our Getting Started guides here in the community. Throughout this series of posts, we'd love to hear from customers and non-customers ab...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs