MaxScale vs PostgREST: What are the differences?
What is MaxScale? *A database proxy that extends high security *. It is a database proxy that extends the high availability, scalability, and security of MariaDB Server while at the same time simplifying application development by decoupling it from underlying database infrastructure.
What is PostgREST? Automatic REST API for Any Postgres Database. PostgREST serves a fully RESTful API from any existing PostgreSQL database. It provides a cleaner, more standards-compliant, faster API than you are likely to write from scratch.
MaxScale and PostgREST can be primarily classified as "Database" tools.
PostgREST is an open source tool with 12.7K GitHub stars and 593 GitHub forks. Here's a link to PostgREST's open source repository on GitHub.