Keeper.sh

Calendar sync tool and universal calendar MCP server

Servicefreemiumglobal

Keeper.sh is a simple, open-source calendar syncing tool: pull events from Google Calendar, Outlook, iCloud, Fastmail, CalDAV, or remote iCal/ICS links, and push them to one or many calendars so time slots align across them all. It also serves as a global MCP server/API for managing calendars from AI agents.

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