Privacy
The Calendera server at mcp.calendera.org answers questions about public and school holidays. It has no accounts, sets no cookies and keeps nothing you send it.
What it receives
The requests an MCP client such as Claude sends it: which tool, and a place, a year, a date or a language. The client decides what to send; nothing about you is needed to answer.
What is kept, and for how long
The server has no database and writes nothing down. Cloudflare, which runs it, keeps a log of each request — when it came, from which address, its headers and whether it succeeded, but not the place, year or date asked about — for up to seven days. The logs are read only to keep the server working.
Who else sees it
Cloudflare, as the host. Nothing is sold or passed to anyone else. The calendar window loads its font from mcp.calendera.org and coats of arms from calendera.org, and its links open calendera.org.