Centia.io offers a secure SQL API that allows users to query data over HTTP or WebSocket with support for JSON-RPC methods. It features built-in security measures such as OAuth2, row-level security, and rate limiting, making it a developer-friendly solution backed by Postgres. The platform provides intuitive SDKs and a friendly CLI for data management.

The article critiques SQL as the dominant implementation of the relational model, highlighting its inexpressiveness and limitations, such as the inability to effectively handle certain data types and complex computations. It argues for the potential benefits of replacing SQL to unlock greater value and innovation in data handling and programming languages.