{"name":"groundedkit","title":"GroundedKit: marketing stats source checks","version":"1.0.0","description":"Free, read-only MCP server: check marketing and influencer statistics against their primary sources.","mcp_endpoint":"https://groundedkit.com/mcp","transport":"streamable-http (POST JSON-RPC 2.0; stateless; JSON responses; no auth)","protocol_versions":["2025-11-25","2025-06-18","2025-03-26","2024-11-05"],"tools":[{"name":"check_stat","description":"Paste a marketing or influencer-marketing statistic (a sentence or a whole paragraph), or ask for a reference number (e.g. 'what share of US adults use TikTok'). Returns the best-matching checked claim with its verdict, confidence, primary source, what the source actually says, a safe rephrasing and the claim URL, plus its kind (stat_check or reference_fact), as_of date, last_checked date and stale flag (last checked more than 180 days ago), and close alternatives. Returns match: none when the stat is not in the database."},{"name":"verify_text","description":"Paste a whole draft (up to 20,000 characters: a blog post, deck notes, an email, a social caption). Splits it into sentences, keeps each sentence that contains a number or statistic, and matches each one against the checked claims. Returns one row per statement with the numbers found, the match level, verdict, safe rephrasing and claim URL, or status not_in_database, plus counts by status and verdict. Unmatched statistic text is logged anonymously (date and text only) to guide which stats get checked next."},{"name":"search_claims","description":"Keyword search over all checked marketing statistics (claim text, common phrasing, origin publisher). Optionally filter by verdict. Returns short summaries; get_claim returns the full record for an id."},{"name":"get_claim","description":"Full record for one checked claim by id (slug) or claim page URL: verdict, confidence, origin, exact quote, method and sample, drift, publisher interest, safe rephrasing and every source we opened."},{"name":"list_verdicts","description":"The four verdicts (verified, misquoted, outdated, unsourced) with definitions and how many claims carry each, plus confidence levels and dataset info."}],"claims":285,"last_reviewed":"2026-10-16","license":"CC BY 4.0","docs":"https://groundedkit.com/agents/","json_api":"https://groundedkit.com/api/claims.json","llms_txt":"https://groundedkit.com/llms.txt","contact":"hello@groundedkit.com"}