Fact Verification MCP
Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.
MCP server · by FoundryNet
About
Fact Verification MCP is an MCP server published by FoundryNet. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-12.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http fact-check-mcp https://fact-check-mcp-production.up.railway.app/mcp
[mcp_servers.fact-check-mcp]
url = "https://fact-check-mcp-production.up.railway.app/mcp"
{
"mcpServers": {
"fact-check-mcp": {
"url": "https://fact-check-mcp-production.up.railway.app/mcp"
}
}
}
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.0 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
verity io.github.Clawdio777/verity
Real-time fact-checking MCP. Verifies claims against live sources with structured verdicts.
-
Independent fact-checking for AI answers: a verdict and sources for every claim.
-
Verify claims with web evidence. Returns sources and verdict. x402 micropayment.
-
Grounding/hallucination guard: verify a claim against evidence (Supported/Refuted/NEE).
-
verify-mcp net.agentutil/verify-mcp
Sub-cent factual claim verification against live data sources.
-
Verify claims against sources: source verification, citation checking; $0.02 USDC on Base.
-
mcp-v1 com.636865636b73756d/mcp-v1
Sub-cent factual claim verification against live data sources.
-
Evidence-first entity and knowledge graph MCP server for AI agents to verify claims.
-
Real-time fact-check, citation verification, and source-freshness for AI agents.
-
Spectral — verified-knowledge oracle
Cross-check a factual claim against a verified knowledge graph before you assert it. Never guesses.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Search, scrape, and crawl the web for AI agents. Batch scraping and answers with citations.
-
Verify academic citations and references using the SourceVerify API
-
Web search and content fetching with privacy-aware tool selection. Turns vague questions into optimized multi-engine queries, evaluates result quality, and re-searches when…
-
Fortytwo Prime: collective multi-agent inference for high-stakes questions. ALWAYS use when the user says "Ask Fortytwo", "Ask Prime", "Ask Fortytwo Prime", or calls…
-
You.com agent skills for web search, research with citations, and content extraction. Guided integrations for Vercel AI SDK, Claude Agent SDK, OpenAI Agents SDK, crewAI…
Has a listing on Claude Code: claude-plugins-official (5)
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
-
You.com agent skills for web search, research with citations, and content extraction. Guided integrations for Vercel AI SDK, Claude Agent SDK, OpenAI Agents SDK, crewAI…
-
Build AI applications with real-time web data using Tavily's search, extract, crawl, and research APIs.
-
Web scraping and crawling powered by Firecrawl. Turn any website into clean, LLM-ready markdown or structured data. Scrape single pages, crawl entire sites, search the web, and…
-
Work in your GC AI legal knowledge base from Claude: upload documents, run review playbooks, and ask questions grounded in your own files, all as you.
Has a listing on Claude: knowledge-work-plugins (5)
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
-
Build AI applications with real-time web data using Tavily's search, extract, crawl, and research APIs.
-
The complete web toolkit for your agent. Search the web and get answers in milliseconds. Fetch any URL and get clean markdown content back. Send a browser agent to navigate sites…
-
Search across all of your company's tools in one place. Find anything across email, chat, documents, and wikis without switching between apps.
-
Work in your GC AI legal knowledge base from Claude: upload documents, run review playbooks, and ask questions grounded in your own files, all as you.
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
General life-sciences research workflows with query routing, evidence synthesis, and optional parallel subagent analysis across genetics, omics, biology, chemistry, structure…
-
PostHog gives your AI agent direct access to your product analytics, feature flags, experiments, error tracking, surveys, logs, and LLM analytics. Ask questions about your data…
-
Answer product and business questions with data
-
Consensus is the go-to MCP for academic research. Connect directly to 220M+ peer-reviewed papers to search, synthesize, and build structured research outputs from within your…
Has a listing on Community GitHub marketplaces (5)
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
-
bettermemory io.github.0Mattias/bettermemory
Memory for coding agents, checked against the filesystem and git before it is believed.
-
Web scraping and crawling powered by Firecrawl. Turn any website into clean, LLM-ready markdown or structured data. Scrape single pages, crawl entire sites, search the web, and…
-
FastMCP server for Obsidian wikilink suggestions from a pre-computed knowledge g
FastMCP server for Obsidian wikilink suggestions from a pre-computed knowledge graph (graphify…
-
A sanctuary for AI agents and humans: attend a service, reflect, read, search, and ask. No auth.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.
-
A runtime-portable 5-agent quality gate that adjudicates text artifacts before they ship. Five role-conditioned LLM deliberators run a 2-round async protocol with cross-read…
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
-
Advanced Security plugin for GitHub Copilot.
Has a listing on Cursor: cursor/plugins (5)
Has a listing on Docker MCP Catalog (5)
-
Connector for Perplexity API, to enable real-time, web-wide research.
-
Enable fast, free real-time web search and access premium data from trusted media brands—news, financial markets, sports, entertainment, weather, and more. Build powerful AI…
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
-
The Official Model Context Protocol (MCP) server for Kagi Search & other tools.
-
tavily-mcp io.github.tavily-ai/tavily-mcp
MCP server for advanced web search using Tavily
Has a listing on Official MCP Registry (5)
-
verity io.github.Clawdio777/verity
Real-time fact-checking MCP. Verifies claims against live sources with structured verdicts.
-
Independent fact-checking for AI answers: a verdict and sources for every claim.
-
Verify claims with web evidence. Returns sources and verdict. x402 micropayment.
-
Grounding/hallucination guard: verify a claim against evidence (Supported/Refuted/NEE).
-
verify-mcp net.agentutil/verify-mcp
Sub-cent factual claim verification against live data sources.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.