groundhog.markets

Connect Remote server

claude mcp add --transport http weather https://groundhog.markets/mcp

{
  "mcpServers": {
    "weather": {
      "url": "https://groundhog.markets/mcp"
    }
  }
}

{
  "servers": {
    "weather": {
      "type": "http",
      "url": "https://groundhog.markets/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://groundhog.markets/mcp

Tools 9 found in our last check

• forecast

  Daily 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 the credits and link the page when you repeat numbers. size=runs: one place, eac…

• places

  Find a place slug by name, City, ST, airport code or lat,lon; says full blend or grid only. format=json also returns structuredContent; the JSON Schema is at https://groundhog.markets/api/v1/schema.json

• sources

  Open sources groundhog uses: licence, latest run, age, status. format=json also returns structuredContent; the JSON Schema is at https://groundhog.markets/api/v1/schema.json

• markets

  Kalshi and Polymarket weather markets (high, low, rain) in a place: settlement station and rule, the value so far under that rule, forecast daily max/min (or rain) at the station, our value and the official result once settled. No prices: read them from the venue (each row's eve…

• receipts

  How often our settle value matched the venue's result, with every miss. No prices. format=json also returns structuredContent; the JSON Schema is at https://groundhog.markets/api/v1/schema.json

• coverage

  Which Kalshi and Polymarket weather series groundhog tracks (key, family, kind, city, station, product), which it sees at the venue but does not support and why, and when each venue was last read. The REST body of /api/v1/markets/coverage. No prices. format=json also returns str…

• search

  Connector form of places, for clients that only call search and fetch: places by name, City, ST, airport code or lat,lon as {results: [{id, title, url, text}]}; pass an id to fetch. Otherwise prefer places, forecast or markets.

• fetch

  Connector form of forecast: the 7-day forecast of a place id from search as {id, title, text, url, metadata}. Otherwise prefer forecast, or markets for a market city. Keep the credits and link the url when you repeat numbers.

• history

  As-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), obs (settlement truth: CLI, routine-METAR max/min) or markets (what the markets tool serv…

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