MCP server

check-claim

io.github.piiiico/check-claim

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 374 tokens per request once connected1 tools

https://check-claim.amdal-dev.workers.dev/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 1
Token cost: About 374 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"check-claim":{"type":"http","url":"https://check-claim.amdal-dev.workers.dev/mcp"}}}

Antigravity

agy mcp add check-claim https://check-claim.amdal-dev.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"check-claim","server_url":"https://check-claim.amdal-dev.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"check-claim","server_url":"https://check-claim.amdal-dev.workers.dev/mcp"}

check_claim ~374 tokens
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 (s

referencesource.org
Verified reference data; each record carries its source URL and quote. verify_quote checks claims.
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19hz
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Agentwatch
Check if ChatGPT, Claude and Perplexity can reach, read and quote a website.
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Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.
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2025 HMDA FHA denial statistics and dated US mortgage rule tables, with receipts you can verify.
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Five trust services for agents: claim checks, citation audits, extraction, tripwires, work audits.
CorpusIQ
One governed MCP endpoint for 40+ business systems. Read-only, source-cited answers.

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