Japan Business Calendar MCP is answering right now. Last checked 2 min ago. It exposes 4 tools. Last commit 14 Oct 2026.
Japanese business days, holiday checks and invoice due dates for your AI agent.
Nothing serious here today
Today is the operative word: we check Japan Business Calendar MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.
claude mcp add jp-business-calendar-mcp --transport http https://jp-business-calendar-mcp.donniertf.workers.dev/mcphttps://jp-business-calendar-mcp.donniertf.workers.dev/mcp[mcp_servers.jp-business-calendar-mcp]
url = "https://jp-business-calendar-mcp.donniertf.workers.dev/mcp"{
"mcpServers": {
"jp-business-calendar-mcp": {
"url": "https://jp-business-calendar-mcp.donniertf.workers.dev/mcp"
}
}
}{
"servers": {
"jp-business-calendar-mcp": {
"type": "http",
"url": "https://jp-business-calendar-mcp.donniertf.workers.dev/mcp"
}
}
}Available tools 4
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
business_days
due_date
next_holidays
year_planner
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://jp-business-calendar-mcp.donniertf.workers.dev/mcp | streamable-http | answering | 143 ms | 2 min ago |
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Japan Business Calendar MCP — questions
Answers built from our own checks of this server.