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closermethod

Newsletter Growth MCP

by closermethod
README.md
# 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

```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](https://github.com/closermethod/content-hooks-mcp)) ← get the reply ([outbound-engine-mcp](https://github.com/closermethod/outbound-engine-mcp)). Sponsorship deal terms live in [creator-deals-mcp](https://github.com/closermethod/creator-deals-mcp); inbox placement in [outreach-deliverability-mcp](https://github.com/closermethod/outreach-deliverability-mcp). Full catalog: [MCP Hub](https://elisabethhitz-mcp.netlify.app)

## Built By

[Elisabeth Hitz](https://www.linkedin.com/in/elisabethhitz) — 10+ years enterprise sales; monetizes her own list with per-click sponsorships.

License: MIT

TDQS

A4/5.0

Scored across 6 tools

Disambiguation5/5

Each tool addresses a distinct aspect of newsletter growth: the full library, specific growth loops, welcome sequence, subject line auditing, metric interpretation, and monetization readiness. Even though get_full_pack is an aggregate, its purpose as a one-shot summary is clearly separate from the detailed, focused tools.

Naming Consistency5/5

Tool names follow a consistent verb_noun pattern: get_ for retrieval, audit_ for analysis, interpret_ for metric interpretation. All are lowercase with underscores, creating a predictable and coherent naming scheme.

Tool Count5/5

With 6 tools, the server is well-scoped for a newsletter growth advisory domain. Each tool covers a major area without redundancy or bloat, making the surface easy to navigate.

Completeness4/5

The tool set covers the core lifecycle of newsletter growth strategy: acquisition (growth loops), onboarding (welcome sequence), content quality (subject line audit), measurement (metrics), and monetization. Minor gaps exist such as lack of tools for email body auditing or detailed revenue forecasting, but agents can still accomplish most workflows.

Maintenance

ActivityStale
ResponsivenessNo issues