Handled Personalizer MCP Server

Generate AI-written personalized cold email opening lines from inside Claude or any MCP-compatible client.

What it does

Two tools exposed over the Model Context Protocol:

personalizer_preview — Free. Personalize up to 3 prospects, no payment required. Returns lines directly in the chat.

personalizer_batch — Paid. Personalize up to 500 prospects. Returns a Stripe checkout link. After payment, results are downloadable as CSV.

Each line is under 20 words and references something specific about the prospect's actual business — fetched from their real website — not generic filler.

Related MCP server: MachFive Cold Email

Pricing

No subscription. No account needed.

Add to Claude

Settings → Connectors → Add custom connector → https://justhandled.net/mcp

Or any MCP client:

{
  "mcpServers": {
    "handled-personalizer": {
      "url": "https://justhandled.net/mcp"
    }
  }
}

Example

User: Personalize first lines for John Smith at Acme Plumbing (acmeplumbing.com)

Claude: [calls personalizer_preview]

**John Smith** (Acme Plumbing)
"Denver homeowners trust Acme for emergency re-pipes — the kind of job most plumbers won't take on short notice."

Privacy

justhandled.net/privacy — prospect data sent to Anthropic API only, never sold.

License

MIT

Support

hello@justhandled.net