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See which signup sources pay from Claude Desktop

Signups are easy to count and customers are what matter. With attribution over MCP, the agent can tell you which source produced paying customers and then pull up what those customers asked for, in the same conversation.

Claude Desktop's config file starts local processes, so a remote server with a header is reached through the mcp-remote bridge. Node.js 18 or later must be installed.

Setup

You need a secret key (nv_live_…) from Dashboard → API keys.

01Add the bridge to the config file

claude_desktop_config.json (Settings → Developer → Edit Config)

{
  "mcpServers": {
    "nordva": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.nordva.dev",
        "--header",
        "Authorization:${NORDVA_AUTH}"
      ],
      "env": {
        "NORDVA_AUTH": "Bearer nv_live_..."
      }
    }
  }
}

The header value is passed through an environment variable because some platforms split arguments that contain a space. On macOS the file is in ~/Library/Application Support/Claude/, on Windows in %APPDATA%\Claude\.

02Check the connection

Quit and reopen Claude Desktop. The nordva tools should appear in the tools menu of a new chat. Ask it to run setup_check.

Then ask Claude Desktop

  • Which waitlist source produced paying customers last month?
  • Was the Product Hunt launch worth it?
  • Who referred the most people who ended up paying?
  • Which campaign converts best, and what did those customers ask for?

For “Which source produced paying customers in the last 30 days?” Claude Desktop calls get_attribution_report with:

{
  "group_by": "referrer",
  "period_days": 30
}

Returned: One row per source with signups, confirmed, invited, paying, ever paid and the signup-to-paying rate, plus current MRR and collected revenue per currency, and whether Stripe is connected.

Attribution tools and arguments

get_attribution_report

Read-onlyIndie and Builder

See which signup sources produce paying customers

group_byoptional"referrer" | "utm_source" | "utm_campaign" | "referral_code"
period_daysoptionalnumber, 1–3,650
limitoptionalnumber, 1–100

Behaviour worth knowing

  • It only covers people who signed up through a Launch waitlist form, page or widget. The tool description tells the agent to say so and not to present it as page analytics.
  • The agent is told not to rank sources by conversion rate when a source has only a handful of signups.
  • Without Stripe connected the funnel still works; paying is zero and the result explains why.
  • Grouping by referring site is on Indie. Grouping by UTM source, UTM campaign and referral code is on Builder.
  • The Connectors screen in Claude Desktop and claude.ai expects OAuth. The Nordva Launch server authenticates with an API key header instead, which is why the bridge is needed there.