Newsletter Growth Mcp

io.github.closermethodPublished by GitHub account closermethodv1.0.1Updated Oct 24, 2026

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

VerifiedSTDIODesktop onlyProductivity & WorkflowBusiness & Commerce

Overview

AI-generated overview

A local MCP server that gives an assistant practitioner frameworks for newsletter growth loops, welcome sequences, subject lines, list metrics and monetization.

What you can do
Retrieve growth-loop playbooks with when each wins and its failure mode, plus the six-email welcome-sequence architecture and a combined full pack of all guidance. Audit subject lines for truncation length, spam phrases, fake reply prefixes and specificity. Interpret list metrics such as opens, clicks, growth, unsubscribes and replies against healthy and warning ranges. Assess monetization readiness for an own product, per-click sponsorships and flat placements from list size and engagement.
When to use it
Useful when a creator or marketer wants an assistant to advise on growing an email list, designing a welcome sequence, checking subject lines, reading list metrics or judging whether a list is ready to monetize.
Requirements
Runs as a local process over stdio, installed from the npm package newsletter-growth-mcp, typically launched with npx. Node.js is needed. No authentication, environment variables or headers are declared.
Before you install
The guidance is practitioner framework material with ranges rather than guarantees, and the author discloses paid sponsorship interests. The tools return advice only; no data is written or sent. List size and engagement figures you provide are passed to the local server.

Installation

In SourceWeft

  1. Open Newsletter Growth Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

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

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

bash
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:

json
{ "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

Source: README.md at commit 2fd4ab7

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.1LatestSep 16, 2026

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