#619 · Primary category： AI Agents & Automation
keeper.sh
Calendar sync tool & universal calendar MCP server. Aggregate, sync and control calendars on Google, Outlook, Office 365, iCloud, CalDAV or ICS.
Project last updated：08/29/26
GitHub Stars
1.3K
Forks
49
Contributors
11
License
AGPL-3.0
Why we included this project
Most calendar tools lock you into a single provider, but keeper.sh pulls Google, Outlook, iCloud, CalDAV, and plain ICS feeds into one place and mirrors events so your schedules line up. That same engine also works as a Model Context Protocol server, letting an AI assistant query your combined availability, spot conflicts, and create meetings without you hopping between apps. For small teams it's practical as a self-hosted sync daemon and a single API for automation, and because the syncing logic is agnostic to event content and clears stale entries, you won't fight ghost copies. If you're comfortable with Docker and Bun, you can run it on your own infrastructure and keep calendar data in-house, which matters when you want agents touching your scheduling without handing credentials to another cloud.
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