"Proton Calendar" matching MCP servers:

Enables AI agents to search and access public calendar data, supporting iCal, CalDAV, and Google Calendar sources with event search, details, and availability checks.

Enables querying Japanese public holidays and calculating business days, including holiday checks, holiday lists, and business-day arithmetic.

Provides access to high-value biotech regulatory calendar events without requiring an API key.

Provides access to European Parliament open data, enabling queries about MEPs, plenary documents, and session calendar.

AI-native eGovernment platform for Cameroonian public services, providing tools for tax calendar, social contributions, and company searches via MCP.

Enables AI agents to search and retrieve FRED economic time series, including vintage (as-published) data, with tools for series search, observation retrieval, release calendar, revision history, and more.

MCP server for Swiss school and public holidays across all 26 cantons, with differentiation by school type. No API key required.

A geocoding MCP server that converts place names to coordinates and coordinates to place names using OpenStreetMap data.