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Verity MCP server

by Clawdio777·io.github.Clawdio777/verity·v1.0.2
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Real-time fact-checking MCP. Verifies claims against live sources with structured verdicts.

B80/100grade B
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Safety scan
B80/100

full report

Adoption
Growing

0 stars41 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Verity tools (4)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • verity_agent

    Natural language fact-checking. 'Is this still true?', 'Check this URL', 'When was this last updated?' — VERITY picks the right strategy. 0.10 USDC per call.

  • verity_batch

    Verify up to 10 claims in one call. Returns array of verdicts. 0.75 USDC for the batch.

  • verity_deep_check

    Thorough multi-angle verification. Uses advanced search depth and cross-references authoritative sources. For high-stakes fact-checks. 0.50 USDC per call.

  • verity_verify

    Verify a claim, URL, or statement against live web sources. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verdict, confidence 0–100, sources, and what has changed. 0.10 USDC per call.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan2 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 17 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Verity compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
80/100
higher than 60% of 48,273 servers
Tools
4
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
41
more than 34% of 11,915 servers with a package

What its tools let an agent do: 4 read

Install Verity in Claude Code, Cursor or VS Code

Runs npx -y verity-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add verity -- npx -y verity-mcp
Add to Cursor

What the publisher says

From the Verity repository's README, as published. We do not edit it. Read it on GitHub

VERITY — Real-Time Fact-Checking Agent

Real-time fact-checking and data freshness agent. Verifies claims, URLs, and content against live web sources. Returns structured verdicts with confidence scores, what has changed, and supporting sources.

Verdicts

MCP Setup (Claude Desktop / Cursor)

{
  "mcpServers": {
    "verity": {
      "command": "npx",
      "args": ["verity-mcp"],
      "env": {
        "VERITY_PRIVATE_KEY": "0x..."
      }
    }
  }
}

Get USDC on Base at coinbase.com/wallet.

Tools

API

POST https://verity.basechainlabs.com/api/verify
Authorization: x402 (USDC on Base)
{
  "claim": "Is GPT-4 still the most capable OpenAI model?",
  "caller_id": "my-agent-id"
}

Response:

{
  "verdict": "OUTDATED",
  "confidence": 91,
  "summary": "GPT-4 has been superseded by GPT-4o and o3.",
  "what_changed": "OpenAI released GPT-4o (May 2024) and o3 (late 2024).",
  "sources": [{ "url": "...", "title": "...", "published_date": "2025-01", "supports": "CONTRADICTS" }],
  "checked_at": "2026-05-11T09:00:00Z",
  "recommendation": "Update any content referencing GPT-4 as the most capable model."
}

Persistent Memory

Pass a consistent caller_id on every call. VERITY remembers topics you've checked, domains you monitor, and previous results — no re-sending context.

A2A Agent Card

GET https://verity.basechainlabs.com/api/agent?agent-card=true

Built by BaseChain Labs

Nothing above is checked by us. What we check is on the safety report.

Verity: common questions

Is Verity MCP server safe?
Mostly: it is graded B (80/100). Read the Verity safety report
How do I install Verity?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Verity need an API key?
Yes. The registry entry asks for VERITY_PRIVATE_KEY.
Is Verity maintained?
The last commit was 53 days ago (2026-09-10). The latest release is v1.0.2.
What can I use instead of Verity?
Servers from other publishers that do the same job: Front-End Checklist MCP server.
How does Verity compare with other MCP servers?
safety score 80/100 (higher than 60% of 48,273 servers); tools 4 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Verity

Same job from other publishers: the closest match first, then the best rated.

  • Front-End Checklist
    Review frontend code and live pages against 386 quality-gated web development rules.
    A