mcpbeat

OpenWarrant — Reference Verification MCP Server

sh.stipple/openwarrant-verify
answering

OpenWarrant — Reference Verification is answering right now. Last checked 2 min ago. It exposes 1 tools.

Fact-check citations: resolve, match, support claims; math rechecked. No API key — URL in.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 42 hours of history
42 hours agonow
100.0%
Uptime 24h
91 of 91 checks
1
Tools
read from the server
1179 ms
Response time
average over 24h
open, no key
Access
streamable-http

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add openwarrant-verify --transport http https://www.stipple.sh/mcp-verify
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "openwarrant-verify": {
      "url": "https://www.stipple.sh/mcp-verify"
    }
  }
}
~/.codex/config.toml
[mcp_servers.openwarrant-verify]
url = "https://www.stipple.sh/mcp-verify"
.cursor/mcp.json
{
  "mcpServers": {
    "openwarrant-verify": {
      "url": "https://www.stipple.sh/mcp-verify"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "openwarrant-verify": {
      "url": "https://www.stipple.sh/mcp-verify"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

verify
verify_references
Fact-check a document's REFERENCES and CLAIMS — built for AI-generated reports whose citations must be checked before they're trusted. USE THIS WHEN someone shares a report, article, whitepaper, or deep-research export (or a link to one) and asks: is this accurate / legit? are these citations real? fact-check this. did the AI make this up? Also use it proactively before relying on any AI-written document. Provide the document ONE way: `url` (a public http(s) link to a PDF or web page — fetched server-side, the cheapest call: no need to download or encode anything), `text` (pasted markdown/plain prose), OR `bytes_b64` (a base64 PDF; URLs are read from the PDF's link annotations, so they're exact). Default (fast): provenance (is it a ChatGPT deep-research export?), citation resolution (live / archived / dead, papers matched against arXiv/Crossref to catch 'real ID, wrong paper'), and internal MATH (recompute the doc's own arithmetic). Set `deep=true` to also fetch each cited source and judge whether it SUPPORTS or CONTRADICTS the claim (slower, ~a minute). Returns a trust summary, per-item tables, and a shareable `permalink` to the public fact-check record. HONEST BOUNDARY: this reports verification COVERAGE, not truth — 'supported' means evidence-backed (not necessarily true) and 'unsupported' means no evidence found (not necessarily false). It tells a reviewer WHERE to look; it does not bless the document, and it never affects the fraud risk band.

Endpoints

URLTransportStateLatencyChecked
https://www.stipple.sh/mcp-verify streamable-http answering 1345 ms 2 min ago

OpenWarrant — Reference Verification — questions

Answers built from our own checks of this server.

What can OpenWarrant — Reference Verification do?
It exposes 1 tools, read directly from the server on our last check. Among them: verify_references. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is OpenWarrant — Reference Verification working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 1179 ms. The bar chart above shows every period we have measured.
Is OpenWarrant — Reference Verification still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect OpenWarrant — Reference Verification?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does OpenWarrant — Reference Verification need an API key?
No. OpenWarrant — Reference Verification completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is OpenWarrant — Reference Verification?
It answers our handshake in 1179 ms on average, which is faster than 3% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.