Ridian

Enables AI assistants to read, create, update, move, and delete calendar events, list calendars, and query free/busy across multiple independent Google accounts through a single interface, with each account routed explicitly and gated by role-based access control. It also includes a built-in personal time-management assistant and stores each account's OAuth tokens in a local encrypted vault.

Calendar API purpose-built for AI agents. Exposes tools to manage agents, calendars, and events, find meeting times, run scheduling proposals, set availability rules, manage webhooks, and subscribe to iCal feeds.

Enables AI assistants to manage Gmail (list, search, send, label emails) and Google Calendar (list, create, update, delete events) via OAuth 2.0.

Enables AI assistants to manage email, contacts, and calendar data through JMAP, CalDAV, and WebDAV APIs, including sending, replying, searching, attachments, labels, and bulk operations.