Stop building newsletter features from scratch.
Newsletter Tools
A utility MCP server with 10 tools for newsletter operators, developers, and content teams.
Quick Start
Add this to your claude_desktop_config.json or MCP client config:
{
"mcpServers": {
"newsletter-tools": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://YOUR_CLOUD_RUN_URL/mcp"]
}
}
}
Before / After
Input: subject_line_variants with subject "5 ways to grow your email list", issue_number 42
Output:
{
"original": "5 ways to grow your email list",
"curiosity": "This week: 5 ways to grow your email list",
"question": "5 ways to grow your email list?",
"urgency": "[Just published] 5 ways to grow your email list",
"numbered": "Issue #42: 5 ways to grow your email list",
"personal": "5 ways to grow your email list (a quick note)"
}
Tools
| Tool | What it does |
|---|---|
slugify_text |
Convert any text to a URL-safe slug |
estimate_read_time |
Estimate reading time at 238 wpm |
extract_plain_text |
Strip HTML tags to return clean plain text |
generate_preview_text |
Extract a preheader snippet from content |
word_count_stats |
Return word, sentence, paragraph, and char counts |
validate_email_address |
Check email address format |
format_newsletter_date |
Format an ISO date into a readable header date |
extract_links |
Extract all URLs from HTML or plain text |
truncate_text |
Truncate to a word count with clean sentence boundary |
subject_line_variants |
Generate 6 subject line style variants |
Who is this for?
- Newsletter operators automating workflows with Claude
- Developers building newsletter platforms and needing utility functions via MCP
- Content teams using AI assistants to prep, audit, and optimize issues before sending
Health Check
GET /health
{ "status": "ok", "server": "newsletter-tools", "version": "1.0.0", "tools": 10 }
Built with MCPize
Built by Mastermind HQ
License
MIT
