At selfhost.dev we provide you an option to create and spin up PostgreSQL database at the cheapest rate possible in the market. You can choose to bring your own cloud (BYOC) and deploy your first database with us.
In order to create your first $4 database use t4g.nano database. Here is a screenshot from our dashboard.

We are working out an MCP option which let's your LLM agents to connect and spin up database with the right configuration that fits you the most.
I will be personally giving you all the service needed to have a smooth onboarding experience and platform is free for first 10 solo founders. We are invite only and wants to work with people gives us early feedback.
Here is our console: https://console.selfhost.dev