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io.github.closermethod/newsletter-growth-mcp

Official registry Marketing and sales

Newsletter growth loops, welcome-sequence architecture, subject-line and list-metric guidance.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package newsletter-growth-mcp
Claude Code 
claude mcp add newsletter-growth-mcp -- npx -y newsletter-growth-mcp@1.0.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "newsletter-growth-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "newsletter-growth-mcp@1.0.1"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Newsletter Growth MCP
  2. Why This Exists
  3. 6 Tools
  4. Install
  5. The Family
  6. Built By

Newsletter Growth MCP

Growth loops, welcome sequences, and monetization readiness for the only audience you actually own.

Disclaimer. Practitioner frameworks; thresholds are ranges, not guarantees. The author runs paid per-click sponsorships on her own list — these are the numbers sponsors actually pay on.

Why This Exists

Platform followers are rented; the list is owned. But most creators (and their AI agents) treat the newsletter as a broadcast afterthought: no welcome sequence, no growth loop, monetization guesses based on list size instead of engagement.

The house rule: engagement monetizes; size impresses. A 520-person list at 43% opens out-earns a 10k list at 12%.

6 Tools

ToolWhat it returns
get_growth_loop5 growth loops (lead magnet, social repurpose, cross-promo, referral, sponsorship swap) with when each wins and its failure mode
get_welcome_sequenceThe 6-email architecture: deliver → receipt → quick win → segment → soft offer → close
audit_subject_linePASS/NEEDS WORK: truncation length, spam phrases, fake Re:, specificity
interpret_list_metricHealthy/warning ranges + diagnostics for opens, clicks, growth, unsubs, replies
get_monetization_readinessGiven your list size + engagement: readiness verdicts for own product, per-click sponsorships, flat placements
get_full_packEverything in one payload

Install

npx newsletter-growth-mcp        # once published to npm
# or from source:
git clone https://github.com/closermethod/newsletter-growth-mcp && cd newsletter-growth-mcp && npm i && npm run build && node dist/main.js

Claude Desktop config:

{ "mcpServers": { "newsletter-growth": { "command": "npx", "args": ["newsletter-growth-mcp"] } } }

The Family

Own the audience (this one) ← get seen (content-hooks-mcp) ← get the reply (outbound-engine-mcp). Sponsorship deal terms live in creator-deals-mcp; inbox placement in outreach-deliverability-mcp. Full catalog: MCP Hub

Built By

Elisabeth Hitz — 10+ years enterprise sales; monetizes her own list with per-click sponsorships.

License: MIT

Frequently asked questions

What is io.github.closermethod/newsletter-growth-mcp?

Newsletter growth loops, welcome-sequence architecture, subject-line and list-metric guidance.

How do I install io.github.closermethod/newsletter-growth-mcp?

It runs on your machine. In Claude Code: claude mcp add newsletter-growth-mcp -- npx -y newsletter-growth-mcp@1.0.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.closermethod/newsletter-growth-mcp need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.closermethod/newsletter-growth-mcp open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.closermethod/newsletter-growth-mcp?

It is published by closermethod. AI.tn lists it but does not maintain or endorse it.

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