ridafkih/keeper.sh — Calendar sync tool & universal calendar MCP server.

Description and use

**Brief Summary (2‑3 sentences)**
ridafkih/keeper.sh is an open‑source calendar synchronization and MCP (Model Context Protocol) server written in TypeScript. It aggregates, syncs, and controls calendars across Google, Outlook, Office 365, iCloud, CalDAV, and generic ICS feeds, exposing a uniform API/CLI that AI assistants can use as a single source of truth for scheduling data. With over a thousand stars, recent commits, and a clear protocol layer, it is ready for pilot‑grade deployments.

**Value**
Keeper.sh turns a fragmented calendar ecosystem into a single, programmatically accessible service, enabling AI agents to read, write, and reason over real‑world scheduling information without bespoke integrations for each provider. By implementing the Model Context Protocol, it offers a standard contract that other tools and AI platforms can adopt, reducing integration overhead and fostering interoperability across SaaS calendars.

**Practical Adoption Path**

1. **Evaluation** – Clone the repo, run the provided Docker compose or npm scripts, and point the server at a test Google or Outlook account using the built‑in OAuth flow.
2. **Integration** – Consume the exposed REST/GraphQL endpoints (or the generated SDK) from your AI assistant or backend service to fetch events, create meetings, or listen for updates.
3. **Extension** – Add custom adapters for any missing calendar source via the documented plugin interface, then register the new adapter in the server’s configuration.
4. **Production Roll‑out** – Deploy the server behind an internal reverse proxy, enable TLS, and configure role‑based API keys for each consuming AI service.

**Production Readiness**
The project shows strong OSS maturity: 1,173 GitHub stars, recent activity (last commit 2026‑06‑29), active issue handling, and a well‑documented TypeScript codebase. Its API/CLI surface, clear licensing, and modular architecture make it suitable for a serious pilot, while the remaining due‑diligence steps (full security audit, license confirmation, and maintainer engagement) should be completed before a full‑scale production launch.

Problem

ridafkih/keeper.sh helps connect AI assistants to real tools and data through a standard protocol.

Outcome

High for an OSS candidate: recent activity, adoption, and ecosystem signals are strong enough for a serious pilot.

Workflow

• connect AI agents to tools
• ship Model Context Protocol servers
• standardize integrations

Evidence

Calendar sync tool & universal calendar MCP server. Aggregate, sync and control calendars on Google, Outlook, Office 365, iCloud, CalDAV or ICS.

Source