{"$schema":"https://verifymcp.io/schemas/trust-report.json","schemaVersion":1,"license":{"name":"CC BY-NC 4.0","url":"https://creativecommons.org/licenses/by-nc/4.0/"},"generatedAt":"2026-11-05T16:24:18.951Z","url":"https://verifymcp.io/servers/markets-groundhog-weather/groundhog","markdownUrl":"https://verifymcp.io/servers/markets-groundhog-weather/groundhog.md","server":{"slug":"markets-groundhog-weather","name":"groundhog.markets","registryName":"markets.groundhog/weather","description":"groundhog.markets: free weather forecasts in one call, plus Kalshi and Polymarket market rules.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"groundhog","type":"remote","identifier":"https://groundhog.markets/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/markets-groundhog-weather/groundhog","version":"1.2.0","transport":null,"scoredAt":"2026-11-05T06:21:38.868Z"},"score":{"total":73,"tier":"medium","status":"scored","weekDelta":4,"history":[{"date":"2026-11-05","total":73},{"date":"2026-11-04","total":72},{"date":"2026-11-03","total":72},{"date":"2026-11-02","total":71},{"date":"2026-11-01","total":71},{"date":"2026-10-31","total":70},{"date":"2026-10-30","total":70},{"date":"2026-10-29","total":69},{"date":"2026-10-28","total":69}]},"categories":[{"name":"Endpoint Security","score":80,"verdict":"fail","reasons":["The endpoint's TLS certificate is valid, in date, and uses a strong key.","No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.","HTTPS is enforced; there's no plaintext access path.","The HSTS (Strict-Transport-Security) header is present.","DNSSEC check failed: this domain isn't protected by DNSSEC."],"codes":[{"code":"tls.valid","args":{}},{"code":"auth.none_no_destructive","args":{}},{"code":"https.enforced","args":{}},{"code":"headers.hsts_present","args":{}},{"code":"dnssec.absent","args":{}}]},{"name":"Transport & Reachability","score":100,"verdict":"pass","reasons":["Verified streamable-http transport via a live MCP handshake."],"codes":[{"code":"transport.verified","args":{"transport":"streamable-http"}}]},{"name":"Schema Quality & AI Usability","score":53,"verdict":"fail","reasons":["AI-judged instruction clarity (good).","Context-footprint check failed: tool/resource definitions use about 1384 tokens (~173/item across 8 items; 8 tools + 0 resources), over budget; trim descriptions and params.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.ai_quality","args":{"band":"good"}},{"code":"schema.footprint_heavy","args":{"avg":"173","items":"8","tools":"8","tokens":"1384","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":27,"verdict":"partial","reasons":["Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"8"}}]},{"name":"Tool Coverage","score":94,"verdict":"partial","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","82% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"82"}}]},{"name":"Tool Safety","score":100,"verdict":"pass","reasons":["No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.","We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it."],"codes":[{"code":"toolsafety.injection_clean","args":{}},{"code":"toolsafety.destructive_none","args":{"tools":"8"}},{"code":"toolsafety.manipulation_clean","args":{"units":"9","judged":"9"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28."],"codes":[{"code":"protocol.supported","args":{"latest":"2026-07-28","version":"2025-11-25"}}]}],"inconclusive":[],"malware":[],"components":[{"slug":"groundhog","type":"remote","identifier":"https://groundhog.markets/mcp","withdrawn":false,"score":73,"current":true,"url":"https://verifymcp.io/servers/markets-groundhog-weather/groundhog","markdownUrl":"https://verifymcp.io/servers/markets-groundhog-weather/groundhog.md"}],"facts":[{"label":"Endpoint","value":"https://groundhog.markets/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.2.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"forecast","title":"Forecast blend","description":"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. 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An array (up to 10) for line/week."},{"name":"runs","type":"integer","required":false,"description":"size=runs: newest runs per source (1)"},{"name":"size","type":"string","required":false,"description":"default line; runs = each source's newest runs by day (trading fields)"},{"name":"step","type":"integer","required":false,"description":"series step hours (temp 3, rain 6)"},{"name":"stn","type":"string","required":false,"description":"rain: a settle station of the place, e.g. KORD"},{"name":"units","type":"string","required":false,"description":"default F in the US, else C; rain in inches with F, mm with C"},{"name":"variable","type":"string","required":false,"description":"temp (default) or rain"},{"name":"win","type":"string","required":false,"description":"rain: lst = the climate day at a daily-rain settle station, cal = calendar day"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":467},{"name":"places","title":"Find a place","description":"Find a place slug by name, City, ST, airport code or lat,lon; says full blend or grid only.","inputs":[{"name":"limit","type":"integer","required":false,"description":null},{"name":"q","type":"string","required":true,"description":null}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":46},{"name":"sources","title":"Sources","description":"Open sources groundhog uses: licence, latest run, age, status.","inputs":[],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":22},{"name":"markets","title":"Weather markets","description":"Weather 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 the station. 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With neither: the list of market cities.","inputs":[{"name":"credits","type":"string","required":false,"description":null},{"name":"date","type":"string","required":false,"description":"today | tomorrow | yesterday | YYYY-MM-DD, each place's local date (default today)"},{"name":"family","type":"string","required":false,"description":"high | low | rain | all (default all); alone: every market city"},{"name":"format","type":"string","required":false,"description":"line md, table tsv"},{"name":"place","type":null,"required":false,"description":"Slug, name, 'City, ST' or ICAO; an array for up to 10 places"},{"name":"size","type":"string","required":false,"description":"line (default with place) | table (default without)"}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":206},{"name":"receipts","title":"Market receipts","description":"How often our settle value matched the venue's result, with every miss. No prices.","inputs":[{"name":"days","type":"integer","required":false,"description":"last N days (30)"},{"name":"family","type":"string","required":false,"description":null},{"name":"format","type":"string","required":false,"description":"default tsv"},{"name":"venue","type":"string","required":false,"description":null}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":61},{"name":"search","title":"Search places","description":"Search places by name, City, ST, airport code or lat,lon. Returns {results: [{id, title, url, text}]}; pass an id to fetch.","inputs":[{"name":"query","type":"string","required":true,"description":null}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":50},{"name":"fetch","title":"Fetch a place","description":"The 7-day forecast of a place id from search: {id, title, text, url, metadata}. 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