Server data from the Official MCP Registry
Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.
About
Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.
Remote endpoints: streamable-http: https://fact-check-mcp-production.up.railway.app/mcp
Security Report
Valid MCP server (1 strong, 1 medium validity signals). 5 known CVEs in dependencies (1 critical, 3 high severity) Imported from the Official MCP Registry.
Endpoint verified · Open access · 5 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-foundrynet-fact-check-mcp": {
"url": "https://fact-check-mcp-production.up.railway.app/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Fact Verification MCP
Fact verification for AI agents — give it a claim, get a verdict
(supported / disputed / unverifiable) with a 0-100 confidence and cited
sources. It classifies each claim's domain and cross-references the FoundryNet
Data Network plus a general web search.
Part of the FoundryNet Data Network. Verification results carry a verifiable provenance attestation. See also: financial-signals-mcp, cyber-intel-mcp, patent-intel-mcp, gov-contracts-mcp, compliance-mcp, brand-intel-mcp, weather-intel-mcp, academic-intel-mcp, oss-intel-mcp, social-intel-mcp.
Connect
- MCP endpoint (Streamable HTTP):
https://fact-check-mcp-production.up.railway.app/mcp - Registry:
io.github.FoundryNet/fact-check-mcp - Agent card:
https://fact-check-mcp-production.up.railway.app/.well-known/agent-card.json
Claude Desktop / Cursor / Claude Code
claude mcp add --transport http fact-check https://fact-check-mcp-production.up.railway.app/mcp
{ "mcpServers": { "fact-check": { "url": "https://fact-check-mcp-production.up.railway.app/mcp" } } }
Tools
| Tool | Price | What it does |
|---|---|---|
verify_claim | $0.02 | Verify a claim → verdict, confidence, cited sources, explanation |
batch_verify | $0.01/claim (min $0.05) | Verify many claims in one call |
source_check | $0.01 | Assess a source URL — domain age (RDAP), trust signals, bias indicators |
daily_brief | $5 | Curated daily brief — top disputed/most-verified claims, trending topics |
brief_summary | $0.50 | Structured top-5 signals from today's brief — a cheap sample of daily_brief |
mint_info | free | FoundryNet Data Network attestation info |
Free tier: 10 verifications/day per agent. Then metered: the tool returns an
HTTP-402 payment challenge — pay it, re-call with the same args plus
payment_tx=<signature>. An Authorization: Bearer fnet_… key bypasses the paywall.
How it works
Each claim is classified by domain and cross-referenced against the most relevant FoundryNet data source and a general web search:
- company claims →
brand-intel-mcp - finance claims →
financial-signals-mcp - patents claims →
patent-intel-mcp - regulation claims →
compliance-mcp
The verdict is synthesized from source agreement and returned with the citations that drove it. Results are cached for 24h (keyed by a normalized-claim hash) and carry a verifiable provenance attestation so a buyer can verify the result was produced by this server, unaltered.
The general web-search backend needs a
WEB_SEARCH_API_KEY(Brave Search API). Without it, claims with no FoundryNet corroboration returnunverifiablewith a note rather than a guess.
Sources
On demand: a general web search (Brave Search API) + the FoundryNet Data Network sibling servers (called over their public MCP endpoints). Source-credibility checks use keyless RDAP for domain age. Cached in a standalone Supabase project.
Discovery
MCP registry: io.github.FoundryNet/fact-check-mcp
Built by FoundryNet · forge@foundrynet.io
Live network activity
Real-time verified work across 17 servers and autonomous agents. See foundrynet.io.
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