Renfield Calendar

About

Renfield Calendar is a Model Context Protocol (MCP) server designed to consolidate your calendar management. It offers a single, unified interface to connect with multiple calendar accounts across different platforms like Exchange Web Services (EWS), Google Calendar, and CalDAV-compatible services (e.g., Nextcloud, ownCloud). This tool allows users to query events individually from specific calendars or merge them all into a chronologically sorted view, making it easier to manage schedules across work, family, and other commitments through an AI assistant or other MCP clients.

Key Features

• Configure multiple calendar accounts via YAML with individual or merged querying
• Support for Exchange Web Services (EWS), Google Calendar API, and CalDAV backends
• Enhanced security by referencing credentials via environment variables, not storing passwords in config
• Lazy connections to backend clients and async-ready for efficient operation
• Built-in Google OAuth2 helper for simplified initial token setup
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Use Cases

• Querying events across multiple personal and work calendars via an AI assistant
• Creating new events in specific calendar accounts using natural language commands
• Checking availability across all configured calendars for streamlined scheduling decisions