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Mailtea

Send and schedule Mailtea email, manage audiences, design newsletters, and edit publication websites through MCP.

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Install Mailtea

Pick your client, then add it in one click or paste the config.

STDIONode.js
~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "mailtea": {
      "command": "npx",
      "args": [
        "-y",
        "plugins"
      ]
    }
  }
}

Settings → Developer → Edit Config, merge this into mcpServers, then fully quit and reopen Claude Desktop.

We couldn’t confirm it starts correctly

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

npx -y plugins

Process exited before answering 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 2d ago.

Overview

  • email
  • newsletters
  • audience-management
  • website
  • communication

The Mailtea MCP server connects an AI assistant to a Mailtea publication for email, newsletter, audience, automation, website, and account operations. It exposes 167 tools through Mailtea's hosted streamable HTTP endpoint and includes skills for email work, email design, and website design. Use it when an assistant should perform or draft Mailtea tasks conversationally rather than through application code. A Mailtea account is required, and sending requires a verified sending domain.

Use cases

  • Send a first email after checking account and domain setup
  • Schedule and monitor a newsletter campaign
  • Manage contacts, segments, topics, and suppressions
  • Draft a reusable welcome-email template
  • Edit a publication website without publishing changes

Key features

  • Email sending, scheduling, cancellation, and delivery tracking
  • Newsletter drafting, testing, publishing, and sponsor management
  • Contact, segment, topic, and suppression management
  • Multi-step automation and custom event tools
  • Website, template, domain, sender, and analytics operations
  • Email and website design skills

Security & health

What it can reach and how reliably it runs — from our own checks, not the maintainer’s claims.

ActiveLast checked 3d ago

Recent health check succeeded.

7/7 checks healthy over the last 41d

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 16d ago via OSV.dev · plugins (npm)

Adoption & maintenance

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

npm downloads64kPackage downloads in the last 30 days.
Last commit4d agoMost recent push to the default branch.
Install checkInconclusiveDidn't respond in our test window — often a slow first install.
Directory activity1 viewsConfig copies, upvotes, and views on AllMCPs.

How Mailtea works

What the Mailtea MCP server does

The Mailtea MCP server gives an AI assistant access to Mailtea publication workflows. It can send, batch, schedule, cancel, resend, and review email; monitor delivery and engagement; and read or reply to inbound messages. Newsletter workflows include drafting, editing, previewing, testing, scheduling, sending, website publication, and sponsor-offer management.

The plugin also covers reusable email templates, contacts and contact properties, CSV imports, segments, topics, suppressions, referral milestones, multi-step automations, custom events, sending domains, senders, analytics, publications, API keys, webhooks, and account connection status.

Three included skills help the assistant select an appropriate workflow: Mailtea email, Mailtea email design, and Mailtea website design. The design skills support drafting welcome emails, newsletters, templates, publication pages, and site changes that remain drafts until published.

How it works

Mailtea provides a hosted MCP endpoint at https://api.mailtea.app/mcp. After connecting a supported client, the user signs in through a browser, selects one publication, and grants an access level ranging from read-only to full access. Actions are limited to that publication and permission level, and the connection can be revoked in Mailtea.

The service exposes 167 tools grouped by resource family, including email.*, issue.*, template.*, contact.*, automation.*, site.*, domain.*, analytics.*, and account-related groups. An assistant can choose tools through a natural-language request, so users do not need to know the individual tool names.

Setup and configuration

A Mailtea account is required. The hosted connection does not require an API key, local Node.js installation, or application code. Install through a client marketplace, the npx plugins add mailtea-app/mailtea-agent-plugin command, or add the hosted URL as a remote MCP server.

Sending also requires a verified sending domain. Most clients use browser sign-in; JetBrains AI Assistant currently requires a Mailtea personal access token because browser sign-in is not available there. After connecting, a request such as checking the account setup can identify missing publications, senders, or domain verification.

Limitations and notes

The Mailtea MCP server is intended for assistants that operate Mailtea accounts. It does not replace Mailtea Studio, the Mailtea SDKs, or the CLI for application development. Permission scope controls what the assistant can do, and website and design changes can be kept as drafts rather than published immediately.

It also does not establish compatibility with clients not listed in the connection instructions.

Read the full README View source on GitHub

Reviews

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Frequently Asked Questions about Mailtea

Mailtea is an MCP server that connects AI assistants to Mailtea publications for email, newsletter, audience, automation, website, and account operations. Its main tools can send and schedule email, manage contacts, design newsletters, track delivery, edit websites, and handle templates, domains, analytics, and webhooks.

Install it through a supported client, use `npx plugins add mailtea-app/mailtea-agent-plugin`, or add `https://api.mailtea.app/mcp` as a remote MCP server. Then sign in through the browser, select a publication, and choose the access level.

Yes, Mailtea works with Cursor. Add the repository from Cursor's Plugins settings or run `npx plugins add mailtea-app/mailtea-agent-plugin -t cursor`, then connect through the hosted MCP endpoint and complete browser sign-in.

No, the hosted connection normally uses browser sign-in and does not require an API key. JetBrains AI Assistant is an exception in the documented setup because it cannot use browser sign-in yet and requires a Mailtea personal access token.

You need a Mailtea account and a verified sending domain. After connection, the assistant can check available publications, senders, and domain verification, then explain what setup remains before sending.

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