Astraluno for ChatGPT

com.astraluno/astraluno

Birth charts, Big Three and sky events with explicit uncertainty. Free; birth data never stored.

client:ChatGPT transport:streamable-http tools:9

Install Astraluno in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://astraluno.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs