Zephyr Scale Jira Cloud API for Bamboo Integration

Hi,
I'm trying to automate testcases and submit test results from Bamboo CICD using the Zephyr Scale Jira Cloud API. Could you please assist me with API endpoints because the one mentioned in the documentation URL below does not work?

https://support.smartbear.com/zephyr-scale-cloud/docs/continuous-integration/bamboo-integration.html