ridafkih/keeper.sh

Health v2 · maintenance only

Adoption not part of the score

1272 stars · 50 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Keeper.sh is an open-source calendar syncing tool that copies events between Google Calendar, Outlook, iCloud, Fastmail, CalDAV servers, and iCal/ICS links so all calendars show busy at the same times. It also exposes a universal MCP server and REST API for AI agents to view and manage calendars, and can be self-hosted with all features included.

Use cases

• sync google calendar with outlook
• stop double-booking between work and personal calendars
• aggregate multiple calendars into one shareable ics feed
• let ai agents book and reschedule events via mcp
• sync icloud calendar to google calendar
• hide event details when sharing calendar availability
• self-host a calendar sync service
• manage all my calendars from one api

When to choose

• you need events mirrored across Google, Outlook, iCloud, Fastmail, or CalDAV calendars
• you want a privacy-focused sync that strips titles, descriptions, and locations from copies
• you want an MCP server so AI agents like Claude or Cursor can manage your calendar
• you want to self-host with every paid feature included under AGPL-3.0

When to avoid

• you need two-way conflict resolution rather than one-way event copying
• you only need a static combined calendar view without syncing
• you require providers outside the supported list (Google, Outlook, iCloud, Fastmail, CalDAV, ICS)
• you cannot run Bun/Docker and don't want the hosted plan

Facets

service · maturity active

mcp webhook api-framework self-hosted developer-tools apis self-hosted self-hosted bun calendar-sync caldav ics google-calendar outlook icloud fastmail mcp-server nextjs typescript automation web-server docker nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="ridafkih/keeper.sh")