io.github.mk-career-planning/jp-forecast-archive·Travel & maps

Japan Weather Forecast Archive (JMA, as issued)

What did Japan's weather agency forecast, as issued at a past time? Archive of JMA bulletins.

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$claude mcp add --transport http jp-forecast-archive https://jp-forecast-archive-production.mk-career-planning.workers.dev/mcp

Nothing to configure — it works as is.

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catalog
List the tools of this server with prices, data sources, licensing, daily limits and data freshness.
forecast_as_issued
Archived JMA prefectural weather forecast as issued. Give an area and at (forecast in effect then) or issued_at (exact JMA issue time). Returns JMA's bulletin as published (Japanese weather text, wind, waves, 6-hour rain probability, temperatures) with report_datetime (JMA's issue time) apart from fetched_at (ours). Status found, not_archived (before this archive started), unknown or no_issuance_at_that_time. Not the current forecast: check JMA.
forecast_issuances
Which prefectural weather forecasts did JMA issue for an area between two times? Lists each archived issuance (JMA issue time, transmission time, our fetch time, scheduled/unscheduled/correction/cancellation, bulletin URL and SHA-256) with coverage gaps where JMA's feed could not be read. Free window: last 30 days (an earlier since is clamped; see history_window). Use forecast_as_issued for the content. An archive, not a forecast service.
get_receipt
Re-fetch the stored result of a settled paid call by its receipt_id, for when the response was lost after payment. Free. Unknown or unsettled receipt ids return RECEIPT_NOT_FOUND. Results are kept for 90 days after settlement.