Keeper.sh
Calendar sync tool & universal calendar MCP server. Aggregate, sync and control calendars on Google, Outlook, Office 365, iCloud, CalDAV or ICS.
At a glance.
A compact read before the deeper capability notes and official setup links.
Core features.
Feature cards focus on what the tool helps users do, not generated setup commands.
Keeper is a simple & open-source calendar syncing tool.
MCP (Model Context Protocol) server for AI agent calendar access
You need to generate a local root certificate authority and trust it so your browser accepts the certificate.
This starts PostgreSQL, Redis, and a Caddy reverse proxy via Docker Compose, along with the API, web, MCP, and cron services locally.
MCP 3001 Proxied by Web at /mcp
DATABASEURL api, cron, worker, mcp PostgreSQL connection URL.. . e.g.
REDISURL api, cron, worker Redis connection URL.
BETTERAUTHURL api, mcp The base URL used for auth redirects.. . e.g.
Agent / Skill / MCP / Workflow fit.
This panel keeps technical format separate from the user-facing AI category.
Official setup path.
Generated install snippets are intentionally not mirrored here because they drift. The page links to source-owned setup docs instead.
Evidence and adoption notes.
These notes help a user decide whether to investigate the official project further.
Source repository last pushed at 2026-04-10T03:16:24Z.
Generated from source metadata; confirm operational details in the official project before adopting it.
Review the upstream license, maintenance activity, and issue history before using it in production.