Ridian for ChatGPT

com.getridian/ridian

Calendars, tasks, contacts, bookings and agent inboxes for your assistant. EU-hosted, OAuth.

client:ChatGPT transport:streamable-http

Install Ridian in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.getridian.com/mcp

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