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closermethod

Newsletter Growth MCP

by closermethod
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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%.

Related MCP server: Newsletter Generator

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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