Ext Ops Panel
Open dashboard

check-claim

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

MCP server · by piiiico

About

check-claim is an MCP server published by piiiico. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-14.

What it asks for

  • Runs remotely

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Works with

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

A one-click link opens the client, which asks you to confirm before it adds the server.

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a remote MCP server

Built from what Official MCP Registry declares.

Claude CodeTerminal
claude mcp add --transport http check-claim https://check-claim.amdal-dev.workers.dev/mcp
Codex~/.codex/config.toml
[mcp_servers.check-claim]
url = "https://check-claim.amdal-dev.workers.dev/mcp"
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "check-claim": {
      "url": "https://check-claim.amdal-dev.workers.dev/mcp"
    }
  }
}

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 0.1.0 Forks (GitHub): 0
Stars (GitHub): 0
Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What changed

Nothing has moved on this plugin since we started watching it.

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

  • Source Claim Proof

    Verify whether a supplied public source currently supports one atomic factual claim.

    by source-claim-proof.mattskowronis.workers.dev · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • CiteVahti

    Checks whether each cited source supports the claim it backs. Blinded human-first, local-first.

    by heidihelena · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • mcp-verify-claim io.github.sudo-ai-git/mcp-verify-claim

    Force evidence-gated, tiered claim reporting (FACT/INFERENCE/SPECULATION). No-LLM.

    by sudo-ai-git · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • verify-mcp net.agentutil/verify-mcp

    Sub-cent factual claim verification against live data sources.

    by agentutil.net · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Citation Check

    Does a cited URL exist, and does the source name what your claim names? Two answers.

    by SecondStageTurbine · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • ProofFetch — Cited Web Evidence

    Free URL preflight. Cited text via separate paid Stripe MPP API.

    by equinoxaifinance-rgb · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • mcp-v1 com.636865636b73756d/mcp-v1

    Sub-cent factual claim verification against live data sources.

    by 636865636b73756d.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • mcp-factcheck io.github.carlisia/mcp-factcheck

    An MCP server that validates content against MCP specification using semantic search and AI

    by carlisia · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • consistency-gate dk.humanified/consistency-gate

    Check claims against a fact-store: consistent, contradicts, or unverifiable — with a receipt.

    by humanified.dk · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • ClaimGate - claim check before you publish

    Flag marketing claims your evidence cannot substantiate, before you publish.

    by caseone115 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
  • sourceverify

    Verify academic citations and references using the SourceVerify API

    by SourceVerify-ai · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • Outline MCP Server

    Connect AI assistants to Outline for document search, reading, and management

    by Vortiago · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-community · Describes nearly the same job

  • sosa-compliance-checker

    Audit your Claude plugins, skills, and coding agents against the SOSA methodology — Supervised Orchestrated Secured Agents. Scans your entire plugin ecosystem and evaluates each…

    by MSApps-Mobile · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • Olostep MCP Server

    Search, scrape, and crawl the web for AI agents. Batch scraping and answers with citations.

    by olostep · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-community · Describes nearly the same job

  • veritasacta-verify

    Offline Ed25519 receipt verifier — checks signed decision receipts, agent manifests, and audit bundles without contacting any server.

    by VeritasActa · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Claude Code: claude-plugins-official (5)
  • playwright-mcp io.github.microsoft/playwright-mcp

    Playwright Tools for MCP

    by microsoft · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Cursor: cursor/plugins, Docker MCP Catalog · Describes nearly the same job

  • vanta

    The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…

    by VantaInc · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • 42crunch-api-security-testing

    Automate API security directly in Claude Code with 42Crunch - automatically audit OpenAPI specs, detect vulnerabilities aligned with OWASP API Security risks (including…

    by 42Crunch-AI · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • exa

    Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…

    by exa-labs · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Docker MCP Catalog, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job

  • browser-use

    Give Claude a real browser — your Chrome or a Browser Use Cloud browser. Use it whenever a task involves a website or web app: browsing, scraping and data extraction, filling…

    by browser-use · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Claude: knowledge-work-plugins (5)
  • vanta

    The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…

    by VantaInc · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • exa

    Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…

    by exa-labs · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Docker MCP Catalog, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job

  • browser-use

    Give Claude a real browser — your Chrome or a Browser Use Cloud browser. Use it whenever a task involves a website or web app: browsing, scraping and data extraction, filling…

    by browser-use · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job

  • GC AI

    Work in your GC AI legal knowledge base from Claude: upload documents, run review playbooks, and ask questions grounded in your own files, all as you.

    by GC-AI-Inc · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job

  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Codex: openai-curated (openai/plugins) (5)
  • Plugin Eval

    Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.

    by OpenAI Codex · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Codex Security

    Codex Security workflows for security scans, analysis, and investigation.

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Slack

    Work with Slack using the configured Slack integration.

    by Slack · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Zotero

    Work with Zotero from Codex: search your library, export BibTeX, insert citations, and import references through the Zotero desktop app.

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • ChatCut

    Install, open, and connect the signed ChatCut Desktop app from Codex.

    by ChatCut · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

Has a listing on Community GitHub marketplaces (5)
  • mcpship: check and publish MCP servers

    Checks a remote MCP server against the Claude directory rules and guides its publication.

    by emanueltns · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • JidoSeal

    Checks a Markdown folder's OKF frontmatter tier, locally. No-egress is a vendor claim: see README.

    by jidoseal.com · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • Attester Oracle

    Verify PyPI and npm packages, symbols, and version diffs against real artifacts. Free, no account.

    by maminihds · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • Bestie Check

    Document reasoning checks: a helicopter view of claims and assumptions before handoff.

    by HireBestie · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • mcp-pin

    Check if an MCP server's tool definitions changed after approval, from a signed public log.

    by GautamTalksDev · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Copilot CLI: github/awesome-copilot (5)
  • doublecheck

    Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.

    by Awesome Copilot Community · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • agent-council

    A runtime-portable 5-agent quality gate that adjudicates text artifacts before they ship. Five role-conditioned LLM deliberators run a 2-round async protocol with cross-read…

    by Avyayalaya · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • BLEA

    Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.

    by Nitmi · MCP server

    Listed on: Official MCP Registry, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • tiny-tool-town-submitter

    Inspect a repository, improve Tiny Tool Town readiness, submit its listing issue, and launch remediation work.

    by James Montemagno · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes a similar job

  • noob-mode

    Plain-English translation layer for non-technical Copilot CLI users. Translates every approval prompt, error message, and technical output into clear, jargon-free English with…

    by Awesome Copilot Community · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes a similar job

Has a listing on Copilot CLI: github/copilot-plugins (5)
  • mcp-apps

    Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • advanced-security

    Advanced Security plugin for GitHub Copilot.

    by github · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • workiq

    Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • microsoft-365-agents-toolkit

    Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • canvas-apps

    Build Power Apps Canvas Apps using the Canvas Authoring MCP server.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

Has a listing on Cursor: cursor/plugins (5)
  • playwright-mcp io.github.microsoft/playwright-mcp

    Playwright Tools for MCP

    by microsoft · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Cursor: cursor/plugins, Docker MCP Catalog · Describes nearly the same job

  • Agent Compatibility

    CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Guru

    Search company knowledge and draft verified answers.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • TinyFish

    Browse and automate the web with TinyFish: run multi-step web automations, search the web, extract clean page content, and drive remote stealth browser sessions.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Clay

    Enrich people and companies, run AI research agents.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

Has a listing on Docker MCP Catalog (5)
  • Kagi Search

    The Official Model Context Protocol (MCP) server for Kagi Search & other tools.

    by kagisearch · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Firecrawl

    🔥 Official Firecrawl MCP Server - Adds powerful web scraping and search to Cursor, Claude and any other LLM clients.

    by firecrawl · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • playwright-mcp io.github.microsoft/playwright-mcp

    Playwright Tools for MCP

    by microsoft · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Cursor: cursor/plugins, Docker MCP Catalog · Describes nearly the same job

  • SmartBear MCP

    MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J.

    by smartbear.com · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

  • Postman MCP Server

    Give your AI agents trusted access to the full Postman platform.

    by postman.com · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

Has a listing on Official MCP Registry (5)
  • Source Claim Proof

    Verify whether a supplied public source currently supports one atomic factual claim.

    by source-claim-proof.mattskowronis.workers.dev · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • CiteVahti

    Checks whether each cited source supports the claim it backs. Blinded human-first, local-first.

    by heidihelena · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • mcp-verify-claim io.github.sudo-ai-git/mcp-verify-claim

    Force evidence-gated, tiered claim reporting (FACT/INFERENCE/SPECULATION). No-LLM.

    by sudo-ai-git · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • verify-mcp net.agentutil/verify-mcp

    Sub-cent factual claim verification against live data sources.

    by agentutil.net · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Citation Check

    Does a cited URL exist, and does the source name what your claim names? Two answers.

    by SecondStageTurbine · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built