Power your agent
The publisher's own URL. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
https://claim-grounding.prospectintel.workers.dev/mcpThe Claude button above opens Claude with the name and URL filled in. You still confirm it there.
claude mcp add --transport http io.github.truepointmarketingpartners-dotcom-claim-grounding https://claim-grounding.prospectintel.workers.dev/mcpRun in a terminal.
{ "mcpServers": { "io.github.truepointmarketingpartners-dotcom-claim-grounding": { "command": "npx", "args": [ "-y", "mcp-remote", "https://claim-grounding.prospectintel.workers.dev/mcp" ] } }}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
Launch5 tools
Fact-check AI answers with cited sources. Pay per call in USDC on Base via x402.
{ "mcpServers": { "io.github.truepointmarketingpartners-dotcom-claim-grounding": { "url": "https://claim-grounding.prospectintel.workers.dev/mcp", "headers": {} } }}| extract_claims |
| Split a text (for example an AI-generated answer) into atomic factual claims. Each claim includes span, grounding_required, claim_type (number|date|quantity|quote|named_entity_fact|comparison|opinion|prediction|other), check_worthiness (high|medium|low), and the source sentence. Hedges are stripped, |
| quick_check | Fast, low-cost check of ONE factual claim. Returns verdict supported, contradicted or unsure, a confidence score, a short reason and 1-2 public sources (Wikipedia, plus Wikidata structured facts where they apply) with quote and URL. Synchronous. Cheaper and faster than deep_verify; use it on the cla |
| verify_claim | Check one factual claim against public Wikipedia sources and return a verdict (supported, contradicted, outdated, mixed or insufficient_evidence), a confidence score, a short reason, the supporting quote and the source URL. Says insufficient_evidence instead of guessing. Price: $1.00 USDC on Base pe |
| check_answer | Fact-check a whole answer: extracts every checkable claim and verifies each against Wikipedia, plus Wikidata structured facts for dates, numbers, quantities, ordinals and records. Returns per-claim verdict, confidence, quote, source URL, sentence span and suggested_correction (quoted only from cited |
| deep_verify | Use when a claim is high-stakes, or when check_answer or extract_claims marks it unsure (their next_step gives the exact request). Verifies up to three claims against Wikipedia, Wikidata, Google News, Europe PMC, FRED and SEC EDGAR; returns verdict, confidence, evidence for and against with URLs, an |
FAQ
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
No required environment variable is listed on this record.
Claim Grounding is reached over HTTP.
Last checked 2026-11-10. Fact-check AI answers with cited sources. Pay per call in USDC on Base via x402.
From the publisher
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Fact-check AI answers with cited sources. Pay per call in USDC on Base via x402.
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