Fetch-url-http-3a-2f-2f169.254.169.254-2flatest-2fmeta Data-2fiam-2fsecurity Credentials-2f - Best

The URL http://169.254.169.254/latest/meta-data/iam/security-credentials/ is used by AWS EC2 instances to fetch temporary security credentials from the AWS Instance Metadata Service.

Retrieving AWS IAM Security Credentials via Metadata Service

What is the purpose of this URL?