check-claim
Check that a source really says what your claim says, before you publish. Verbatim, multi-path.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"check-claim": {
"url": "https://check-claim.amdal-dev.workers.dev/mcp"
}
}
}Remote endpoints
https://check-claim.amdal-dev.workers.dev/mcpstreamable-httpWhat it can do
Tool inventory
Tools (1)
🟢check_claim(claim, source, quote, stance)
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.
Input Schema
{
"type": "object",
"properties": {
"claim": {
"type": "string",
"description": "The sentence you want to check, as you would publish it."
},
"source": {
"type": "string",
"description": "The source the claim rests on: an http(s) URL, or arxiv:<id>."
},
"quote": {
"type": "string",
"description": "Optional. The sentence from the source, copied verbatim, that bears on the claim."
},
"stance": {
"type": "string",
"enum": [
"supports",
"contradicts"
],
"description": "Optional, with quote. Whether that sentence supports or contradicts the claim (default supports)."
}
},
"required": [
"claim",
"source"
]
}Community
Evidence