by ridafkih · MCP Server · ★ 1.2k
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About Keeper is a simple & open-source calendar syncing tool. It allows you to pull events from remotely hosted iCal or ICS links, and push them to one or many calendars so the time slots can align across them all. Features Aggregating calendar events from remote sources Event content agnostic syncing engine Push aggregate events to one or more calendars MCP (Model Context Protocol) server for AI agent calendar access Open source under AGPL-3.0 Easy to self-host Easy-to-purge remote events Bug Reports & Feature Requests If you encounter a bug or have an idea for a feature, you may open an issue on GitHub and it will be triaged and addressed as soon as possible. Contributing High-value and high-quality contributions are appreciated. Before working on large features you intend to see merged, please open an issue first to discuss beforehand. Local Development The dev environment runs behind HTTPS at using a Caddy reverse proxy with automatic TLS. The TLD resolves to automatically per RFC 6761 — no entry is needed. Prerequisites Bun (v1.3.11+) Docker & Docker Compose Getting Started Generate and Trust a Root CA
| Stars | 1,230 |
| Forks | 44 |
| Language | TypeScript |
| Category | MCP Server |
| License | AGPL-3.0 |
| Quality Score | 69.2192680070614/100 |
| Open Issues | 90 |
| Last Updated | 2026-08-06 |
| Created | 2025-12-23 |
| Platforms | mcp, node |
| Est. Tokens | ~21k |
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keeper.sh is Calendar sync tool & universal calendar MCP server. Aggregate, sync and control calendars on Google, Outlook, Office 365, iCloud, CalDAV or ICS.. It is categorized as a MCP Server with 1.2k GitHub stars.
keeper.sh is primarily written in TypeScript. It covers topics such as bun, caldav, calendar.
You can find installation instructions and usage details in the keeper.sh GitHub repository at github.com/ridafkih/keeper.sh. The project has 1.2k stars and 44 forks, indicating an active community.
keeper.sh is released under the AGPL-3.0 license, making it free to use and modify according to the license terms.
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