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  3. Emailmd
Emailmd logo
Health: ActiveRecent health check succeeded.Last checked 9/9/2026, 12:16:28 PM

Emailmd

User RatingsBe the first to rate and review this MCP server!
View Repository1.4k GitHub StarsTotal stargazers on GitHub for the source repository (1,370 stars).Visit Website
emailmarkdownmcplintingcli

Convert markdown to email-safe HTML with linting and live preview via an MCP server or local CLI.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to CursorAdd to VS Code
We couldn’t automatically confirm this listing starts correctly

We ran the install command below but it didn't respond within our test window — this can mean a slow first-time install rather than a real problem.

npx -y emailmd

No response to initialize.

This is an experimental automated check and can have false negatives — missing environment variables, a slow cold install, etc. It doesn’t necessarily mean something’s wrong. Last checked 1mo ago.

Manual Client & Custom JSON ConfigExpand JSON â–¾

Client Config & Setup

Choose your client or environment
Target File:~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "anypost-emailmd": {
      "command": "npx",
      "args": [
        "-y",
        "emailmd"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Install Directory Badge Claim listing Alternatives💬 More in Communication

Overview

emailmd converts markdown into responsive, email-safe HTML compatible with major email clients like Gmail, Outlook, and Apple Mail. It provides linting to flag deliverability issues and generates plain text versions for emails. The project includes a Model Context Protocol server exposing render, lint, and documentation lookup tools, usable via hosted HTTP or locally through stdio. Use it to programmatically generate, preview, and validate email content from markdown.

Use cases

•Render markdown into email-safe HTML for sending
•Lint email drafts for deliverability problems
•Generate plain text versions of emails
•Preview email output live in a browser or app
•Integrate email rendering and linting into AI assistants

Key features

•Markdown to responsive, email-safe HTML conversion
•Plain text email version generation
•Linting for email deliverability issues
•Live preview via React components or web builder
•MCP server exposing render, lint, and docs tools
•CLI for local rendering and output control

Capabilities & Tool Schemas

Inspect callable tools, capabilities, and parameters exposed to AI agents by Emailmd.

Extracted Tool Capabilities
Markdown to responsive, email-safe HTML conversion
Plain text email version generation
Linting for email deliverability issues
Live preview via React components or web builder
MCP server exposing render, lint, and docs tools
CLI for local rendering and output control

Documentation Overview

emailmd

Write markdown. Ship emails. No HTMHELL.

emailmd converts markdown into responsive, email-safe HTML that works across Gmail, Outlook, Apple Mail, Yahoo, and every other client.

emailmd

Install

Terminal
npm install emailmd

Quick Start

server.ts
import { render } from "emailmd";

const { html, text } = await render(`
# Welcome!

Thanks for signing up.

[Get Started](https://example.com){button}
`);

// html → complete email-safe HTML
// text → plain text version for text/plain MIME part

v0.3.0 migration: render() is now async. Update calls from render(md) to await render(md). Requires Node 20+ (MJML 5).

Charts & Data

Bar charts, progress meters, sparklines, KPI tiles, step trackers, and star ratings, each written as a plain markdown list:

markdown
::: chart
- Spotify: 16,900
- Apple Podcasts: 12,400
- Web player: 6,200
- RSS: 2,900
:::

KPI tiles, a bar chart and a sparkline, rendered by emailmd from plain markdown lists

They are drawn from table cells and text glyphs rather than images or SVG, so they still render when the client blocks remote images, and they redraw themselves in the plain-text part instead of collapsing to a list of numbers. See the directives reference.

CLI

emailmd also ships with a command-line interface.

bash
# Render to HTML
emailmd input.md

# Write to file
emailmd input.md -o output.html

# Plain text output
emailmd input.md --text

# Pipe from another command
echo "# Hello" | emailmd

Run emailmd --help for all options.

React

@emailmd/react provides a live-preview hook (useEmailmd), an <EmailPreview /> iframe component, and <EmailmdBuilder /> — the full builder as a drop-in component for your own app.

Terminal
npm install @emailmd/react emailmd

Learn More

  • Docs — full syntax reference, theming, frontmatter, directives, and API
  • Templates — ready-made email templates you can copy and customize
  • Builder — live editor to write and preview emails in your browser

MCP

emailmd ships a Model Context Protocol server, so an AI assistant can render, lint, and preview emails for you. It exposes three tools — render (markdown to email-safe HTML), lint (flag deliverability problems without rendering), and read_docs (look up emailmd syntax) — over either transport:

bash
# Hosted (Streamable HTTP)
https://www.emailmd.dev/api/mcp

# Or run it locally over stdio
npx emailmd mcp

Published to the official MCP registry as dev.emailmd/emailmd. See the MCP docs for per-client setup.

AI

Prefer plain context over tools? emailmd is just markdown, so AI is great at writing templates. Feed the full docs to your AI tool:

Code
https://www.emailmd.dev/llms-full.txt

Contributing

Contributions are welcome! Feel free to open an issue or submit a pull request.

emailmd is under active development. The API may change between minor versions until we hit 1.0 — breaking changes are always called out in the changelog. See Stability & Versioning for what the semver contract covers.

Acknowledgements

  • Built with MJML under the hood
  • Sponsored by Anypost

License

MIT

Read the full README →View source on GitHub →

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Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars
1.4k
Stargazers on the source repository.
npm downloads
18k
Package downloads in the last 30 days.
Last commit
15d ago
Most recent push to the default branch.
Install check
Inconclusive
Didn't respond in our test window — often a slow first install.
Directory activity
2 views
Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Emailmd

It produces HTML compatible with Gmail, Outlook, Apple Mail, Yahoo, and other major email clients.

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Full Badge Customizer

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Badge Style:
Live Dynamic SVG PreviewEmailmd AllMCPs Directory Badge
Markdown (GitHub README)
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Technical Specs & Signals

Category💬Communication
PricingFree
More technical detailsExpand â–¾
TransportSTDIO
RuntimeNode.js
AuthNo auth required
LicenseMIT
Last updatedAug 26, 2026
10/10 checks healthy over the last 31d
Views2
Unique ViewsTotal visits recorded for this listing page on AllMCPs.
Installs0
Installs & Copy ActionsTotal times users copied install commands or configuration snippets for this server.
GitHub stars1,370
GitHub Star CountTotal stargazers on GitHub representing community popularity (1,370 stars).
Last commit15d ago
Last Repository CommitThe most recent commit or push recorded for this server's GitHub repository.Last commit on Aug 26, 2026
npm downloads18,663/mo
Monthly npm DownloadsAverage monthly package installs recorded from npm registry statistics.
64Quality signal: Good · 64/100How this signal is calculated ▾
Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20
Documentation & tools24/30
Adoption & activity14/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 23d ago via OSV.dev · emailmd (npm)

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