Lenz Fact-Check MCP Server: Install & Setup

Install Lenz Fact-Check in Claude Code

Claude Code

claude mcp add --transport http lenzhq-lenz-fact-check https://lenz.io/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "lenzhq-lenz-fact-check": {
      "url": "https://lenz.io/mcp"
    }
  }
}

Frequently asked questions

What does the Lenz Fact-Check MCP server do?

Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.

Is the Lenz Fact-Check MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Lenz Fact-Check run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Lenz Fact-Check to Claude Code?

Run: claude mcp add --transport http lenzhq-lenz-fact-check https://lenz.io/mcp

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