mailtea

v0.6.0

Send email and newsletters with Mailtea over MCP, plus skills for email and website design.

CodexClaude CodeAgent Plugins2 Skills1 MCP serverStreamable HTTP

By MailteaLicense: MIT0 GitHub starsUpdated 3 hours ago

Directory evidence

Runtimes: Codex, Claude Code, and Agent Plugins
Parsed components: 3 skill or MCP entries
Source updated: Sep 28, 2026
Manifest status: Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install mailtea for Codex and Claude Code

Installs for the current user

codex plugin marketplace add mailtea-app/mailtea-agent-plugin
codex plugin marketplace upgrade mailtea
codex plugin add mailtea@mailtea

Paste and run these commands in a terminal with Codex. They add and refresh the mailtea catalog, then install this plugin.

Compatibility: the page URL and API slug “mailtea” remain stable.

Codex: mailtea@agent-plugin-marketplace → mailtea@mailtea

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually

$ git clone https://github.com/mailtea-app/mailtea-agent-plugin

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

mailtea/

├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
├── plugin.json
├── skills/mailtea-email-design/SKILL.md
├── skills/mailtea-site-design/SKILL.md
└── .mcp.json

Included Skills2

mailtea-email-designskills/mailtea-email-design/SKILL.md

Design a beautiful, on-brand, deliverable email, newsletter or template in Mailtea. Use when an agent is about to build or restyle a Mailtea email — covers the structured block/ops path (fastest, email-safe by construction), hand-written email-safe HTML when you own the whole document, images, brand colour, and the render/QA loop. Pairs with the mailtea-email skill (which covers sending/managing) — this one covers how the email should LOOK.

mailtea-site-designskills/mailtea-site-design/SKILL.md

Build and restyle a publication's public website with Mailtea from an AI agent — pages, sections, theme, and the design brief that keeps later edits on-brand. Use when the user wants to create or change their Mailtea site (home, about, archive, a landing page), restyle it, or publish it. Pairs with mailtea-email-design, which covers the email side.

MCP servers1

mailteaStreamable HTTP

url: https://api.mailtea.app/mcp

Plugin manifests3

.codex-plugin/plugin.json

{
  "name": "mailtea",
  "version": "0.6.0",
  "description": "Send email and newsletters with Mailtea over MCP, plus skills for email and website design.",
  "author": {
    "name": "Mailtea",
    "url": "https://mailtea.app"
  },
  "homepage": "https://docs.mailtea.app/docs/documentation/agent-plugin",
  "repository": "https://github.com/mailtea-app/mailtea-agent-plugin",
  "license": "MIT",
  "keywords": [
    "mailtea",
    "email",
    "newsletter",
    "mcp",
    "agent-skills",
    "transactional-email",
    "agent-plugins"
  ],
  "skills": "./skills/",
  "mcpServers": "./.mcp.json",
  "interface": {
    "displayName": "Mailtea",
    "shortDescription": "Send your first email. Design your next newsletter.",
    "longDescription": "Send and schedule email, check delivery, design newsletters, manage contacts, and build your publication website from a conversation. Connect your Mailtea account, choose your publication, then ask: “Help me send my first email.” Mailtea checks your setup and guides you through any missing sender or domain verification. Three included skills handle email, email design, and website design automatically. No API key, Node.js, or coding is needed for the hosted connection. You need a Mailtea account and a verified sending domain to send. Draft requests stay drafts; sending uses the recipients and content you specify.",
    "developerName": "Mailtea",
    "category": "Productivity",
    "capabilities": [
      "Interactive",
      "Write"
    ],
    "websiteURL": "https://mailtea.app",
    "privacyPolicyURL": "https://mailtea.app/privacy-policy",
    "termsOfServiceURL": "https://mailtea.app/terms-of-service",
    "defaultPrompt": [
      "Help me send my first email with Mailtea. Check my setup and guide me through anything missing.",
      "Draft a welcome email for my publication with a clear subject and one call to action. Do not send it yet.",
      "Check my recent Mailtea emails and explain any failed deliveries."
    ],
    "brandColor": "#2158ff",
    "composerIcon": "./assets/mailtea-mark.svg",
    "logo": "./assets/mailtea-mark.svg",
    "screenshots": [
      "./assets/get-started.png",
      "./assets/included-skills.png"
    ]
  }
}

.claude-plugin/plugin.json

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "mailtea",
  "version": "0.6.0",
  "description": "Send email and newsletters with Mailtea over MCP, plus skills for email and website design.",
  "logo": "assets/mailtea-mark.svg",
  "mcpServers": {
    "mailtea": {
      "type": "http",
      "url": "https://api.mailtea.app/mcp"
    }
  },
  "author": {
    "name": "Mailtea",
    "url": "https://mailtea.app"
  },
  "homepage": "https://mailtea.app",
  "repository": "https://github.com/mailtea-app/mailtea-agent-plugin",
  "license": "MIT",
  "keywords": [
    "mailtea",
    "email",
    "newsletter",
    "mcp",
    "agent-skills",
    "transactional-email",
    "agent-plugins"
  ]
}

plugin.json

{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "mailtea",
  "version": "0.6.0",
  "description": "Send email and newsletters with Mailtea over MCP, plus skills for email and website design.",
  "author": {
    "name": "Mailtea",
    "url": "https://mailtea.app"
  },
  "homepage": "https://mailtea.app",
  "repository": "https://github.com/mailtea-app/mailtea-agent-plugin",
  "license": "MIT",
  "keywords": [
    "mailtea",
    "email",
    "newsletter",
    "mcp",
    "agent-skills",
    "transactional-email",
    "agent-plugins"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[mailtea on Agent Plugins Marketplace](https://pluginsmp.com/plugins/mailtea)