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Newsletter growth loops, welcome-sequence architecture, subject-line and list-metric guidance.
About
Newsletter growth loops, welcome-sequence architecture, subject-line and list-metric guidance.
Security Report
Excellent security posture. This is a pure-logic MCP server with no external dependencies beyond the MCP SDK, no authentication requirements, no external API calls, no file I/O, and no dangerous operations. All six tools return deterministic data structures based on the practitioner framework embedded in the code. Code is well-structured, properly typed, and implements appropriate input validation. Supply chain analysis found 2 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue.
3 files analyzed · 5 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-closermethod-newsletter-growth-mcp": {
"args": [
"-y",
"newsletter-growth-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
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
| Tool | What it returns |
|---|---|
get_growth_loop | 5 growth loops (lead magnet, social repurpose, cross-promo, referral, sponsorship swap) with when each wins and its failure mode |
get_welcome_sequence | The 6-email architecture: deliver → receipt → quick win → segment → soft offer → close |
audit_subject_line | PASS/NEEDS WORK: truncation length, spam phrases, fake Re:, specificity |
interpret_list_metric | Healthy/warning ranges + diagnostics for opens, clicks, growth, unsubs, replies |
get_monetization_readiness | Given your list size + engagement: readiness verdicts for own product, per-click sponsorships, flat placements |
get_full_pack | Everything 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
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