che-ical-mcp: che-ical-mcp is a macOS native MCP server that integrates with the system's EventKit to provide comprehensive calendar and reminders management. It offers 29 tools including calendar, event, reminder, batch operations, undo/redo, and advanced features like duplicate detection and conflict checking. Built with Swift, it supports integration with Claude Desktop and Claude Code.; openagent: OpenAgent is an open-source enterprise-level AI Cloud OS. It functions as an AI knowledge base and an MCP (model-context-protocol)/A2A (agent-to-agent) management platform. It includes an admin UI, user management, and Single-Sign-On, supporting a wide array of models like ChatGPT, Claude, and Llama.
Full calendar management: create, update, delete events, check conflicts, find duplicates
Building and managing centralized enterprise AI knowledge bases