check-claim MCP Server

by piiiico Your server? Claim it

answering

check-claim is answering right now. Last checked 13 min ago. It exposes 1 tools. Last commit 10 Oct 2026.

Check that a source really says what your claim says, before you publish. Verbatim, multi-path.

Uptime history 7 days of history

7 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

174 ms

Response time

average over 24h

Stars

last commit 10 Oct 2026

Nothing serious here today

Today is the operative word: we check check-claim every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add check-claim --transport http https://check-claim.amdal-dev.workers.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "check-claim": {
      "url": "https://check-claim.amdal-dev.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.check-claim]
url = "https://check-claim.amdal-dev.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "check-claim": {
      "url": "https://check-claim.amdal-dev.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "check-claim": {
      "url": "https://check-claim.amdal-dev.workers.dev/mcp"
    }
  }
}

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.

claim

check_claim

Check whether a source really says what a claim says it says, before you publish the claim. Give the claim and the source (an http(s) URL or arxiv:<id>). Without a quote you get back the source sentences that best match the claim. With quote (a sentence copied verbatim from the source) and stance (supports|contradicts, your judgment), the tool fetches the source on independent paths (origin, reader, web archive; for arXiv: metadata and full text) and returns SUPPORTED or CONTRADICTED only if the quote is found verbatim on at least two of them, else UNVERIFIABLE. A quote that is not in the source is reported as QUOTE NOT IN SOURCE, with the nearest real sentences. No key needed.

Endpoints

URL	Transport	State	Latency	Checked
https://check-claim.amdal-dev.workers.dev/mcp	streamable-http	answering	151 ms	13 min ago

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check-claim — questions

Answers built from our own checks of this server.

What can check-claim do?

It exposes 1 tools, read directly from the server on our last check. Among them: check_claim. 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 check-claim 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 174 ms. The bar chart above shows every period we have measured.

How do I connect check-claim?

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 check-claim need an API key?

No. check-claim 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 check-claim?

It answers our handshake in 174 ms on average, which is faster than 68% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is check-claim open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.