Historis for ChatGPT

io.github.svenlc/historis

The memory of your business: an event-based CRM your assistant reads and writes, dated and signed.

client:ChatGPT transport:streamable-http

Install Historis in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.historis.app/mcp

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