You would use Cloud SQL to access PostgreSQL. Here's how you configure your App Engine standard environment project to use Cloud SQL: https://cloud.google.com/

You would use Cloud SQL to access PostgreSQL. Here's how you configure your App Engine standard environment project to use Cloud SQL: https://cloud.google.com/appengine/docs/standard/python3/using-cloud-sql-postgres https://cloud.google.com/appengine/docs/standard/python3/usi... The Cloud SQL for PostgreSQL docs contain code samples to get you started: https://cloud.google.com/sql/docs/postgres/ https://cloud.google.com/sql/docs/postgres/ This should all work with SQLAlchemy.