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is_business_day_free — Japan Business Day MCP Tool

is_business_day_free (is business day free) is one of 5 tools on the Japan Business Day MCP server. Connect the server and your client discovers it on the handshake.

by client

How to call is_business_day_free from your client

Fastest route

claude mcp add --transport http japan-business-day https://japan-business-day-api.matchan962.workers.dev/mcp

Other tools on this server

This list was read from the server itself, by connecting to it and calling tools/list on 26 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.