> For the complete documentation index, see [llms.txt](https://karansingh.gitbook.io/aws-saa-c02/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://karansingh.gitbook.io/aws-saa-c02/rds/rds-iam-database-authentication.md).

# RDS IAM database authentication

* You **can authenticate to your database instance using AWS IAM database authentication**.<br>
* IAM database authentication **only works with MySQL and PostgreSQL**.<br>
* You **don't need to use a password when you connect to a database instance**.
  * **Instead, you use an authentication token** (a unique string of characters that RDS generates on request).