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MCP QUEEN

dev.plugrail/jp-calendar A

Japanese holiday and business-day calculations using official Japan Cabinet Office data.

Communicationv0.1.1streamable-httpjp-calendar.plugrail.dev repository

Grade evidence — probed 2026-07-13 10:45 UTC

CriterionPointsObserved
reachability25 / 25HTTP 200, initialize accepted in 1263ms
protocol15 / 15valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo jp-calendar@0.1.0
tooling35 / 35tools/list OK: 4 tools e.g. "is_holiday"; 4/4 described, 4/4 fully-typed schemas, median description 234 chars
latency7 / 10initialize round-trip 1263ms
provenance15 / 15description present; repository linked; version 0.1.1; namespace dev.plugrail matches endpoint/repo

Score 97/100 · latency 1263ms · 4 tools · auth: open

Connect your agent

Claude Code:

claude mcp add --transport http jp-calendar https://jp-calendar.plugrail.dev/mcp

Generic MCP client config:

{ "mcpServers": { "jp-calendar": { "type": "http", "url": "https://jp-calendar.plugrail.dev/mcp" } } }

MCP Queen is a graded index, not a middleman — your agent connects directly to the server above. Check the grade and evidence first; that's the point. Share this server: permalink https://mcpqueen.com/s/dev.plugrail/jp-calendar · referral link https://mcpqueen.com/go/dev.plugrail/jp-calendar (counts as “routed via the queen”).

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MCP Queen grade badge for dev.plugrail/jp-calendar

[![MCP Queen grade](https://mcpqueen.com/badge/dev.plugrail/jp-calendar.svg)](https://mcpqueen.com/s/dev.plugrail/jp-calendar)

Think the grade is wrong? Fix the finding the evidence shows, then the next probe cycle picks it up automatically (full cycle ≈ 3 days) — or open a dispute via the MCP endpoint.

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Probe history

When (UTC)GradeScoreLatency
2026-07-13 10:45A971263ms

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