PlugRail Japanese Calendar MCP Tools
PlugRail Japanese Calendar exposes 4 tools. Each one has its own page with the configuration for every client that can run this server.
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is_holidayis holiday
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list_holidaysRead-onlylist holidays
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add_business_daysMutatingadd business days
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business_days_betweenbusiness days between
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.