is_business_day — Japan Business Day MCP Tool
is_business_day
(is business day) 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 from your client
- Claude Code Japan Business Day is_business_day run in your project directory
- Claude Desktop Japan Business Day is_business_day ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Japan Business Day is_business_day ~/.cursor/mcp.json
- VS Code Japan Business Day is_business_day .vscode/mcp.json
- Zed Japan Business Day is_business_day ~/.config/zed/settings.json
- Windsurf Japan Business Day is_business_day ~/.codeium/windsurf/mcp_config.json
- Cline Japan Business Day is_business_day ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Japan Business Day is_business_day ~/.gemini/settings.json
- Grok Japan Business Day is_business_day .mcp.json (in your project root)
- ChatGPT Japan Business Day is_business_day Settings → Connectors → Advanced → Developer mode
- Claude.ai Japan Business Day is_business_day Settings → Connectors → Add custom connector
- LangChain Japan Business Day is_business_day pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http japan-business-day https://japan-business-day-api.matchan962.workers.dev/mcpOther 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.