Nope. There is an AWS blog post [0] from September 2021 about setting up pgbouncer in front of Aurora Postgres, and that blog post references the AWS RDS Proxy

Nope. There is an AWS blog post [0] from September 2021 about setting up pgbouncer in front of Aurora Postgres, and that blog post references the AWS RDS Proxy service [1], but Aurora doesn't have pgbouncer in front by default. For what it's worth, we also handled hundreds of idle connections just fine on vanilla RDS postgres. [0] https://aws.amazon.com/blogs/database/set-up-highly-available-pgbouncer-and-haproxy-with-amazon-aurora-postgresql-readers/ https://aws.amazon.com/blogs/database/set-up-highly-availabl... [1] https://aws.amazon.com/rds/proxy/ https://aws.amazon.com/rds/proxy/