Concordance 2 MCP Server: Install & Setup

Install Concordance 2 in Claude Code

Claude Code

claude mcp add --transport http concordance-2 https://narrowhighway.com/mcp

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

{
  "mcpServers": {
    "concordance-2": {
      "url": "https://narrowhighway.com/mcp"
    }
  }
}

Frequently asked questions

What does the Concordance 2 MCP server do?

Deterministic claim verification with receipts across ~60 domains. No model in the loop.

Is the Concordance 2 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 Concordance 2 run locally or remotely?

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

How do I add Concordance 2 to Claude Code?

Run: claude mcp add --transport http concordance-2 https://narrowhighway.com/mcp

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