groundhog.markets
by FastDrop
groundhog.markets: free weather forecasts in one call, plus Kalshi and Polymarket market rules.
groundhog.markets: free weather forecasts in one call, plus Kalshi and Polymarket market rules. Official MCP Registry: markets.groundhog/weather@1.2.0. Remote endpoint: https://groundhog.markets/mcp
Problem it solves
Discoverable MCP server listed in the official MCP Registry.
How it's different
Remote MCP endpoint ingested from the official registry and probed by FastDrop.
Ingested from the official MCP Registry
FastDrop pulled this entry from the official MCP Registry as markets.groundhog/weather and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed
and the description is not theirs.
If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.
Claim this listingTools this endpoint exposes
Read directly from the endpoint on 28 Oct 2026. Not supplied by the maker.
forecastDaily high/low for any place from every free forecast: median, spread, rain, current obs and active alerts, with credits and the page URL. line ≈321 tok, week ≈566, table ≈1,567, series ≈1,564. Keep t
placesFind a place slug by name, City, ST, airport code or lat,lon; says full blend or grid only.
sourcesOpen sources groundhog uses: licence, latest run, age, status.
marketsWeather markets in a place (Kalshi, Polymarket high/low/rain): settlement station and rule, the number so far under that rule, our value and the official result once settled, forecast daily max/min at
receiptsHow often our settle value matched the venue's result, with every miss. No prices.
searchSearch places by name, City, ST, airport code or lat,lon. Returns {results: [{id, title, url, text}]}; pass an id to fetch.
fetchThe 7-day forecast of a place id from search: {id, title, text, url, metadata}. Keep the credits and link the url when you repeat numbers.
historyAs-issued history for backtests (no look-ahead): kind=daily (every source's daily hi/lo/rain per run at a place), nbm (NBM text columns: TXN, XND, P12, Q12; view=day = the books' day view) or obs (set
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Matched on shared tags and the tools their MCP servers actually expose.
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