postmark-mcp

by ActiveCampaign · Productivity · ★ 59

postmark-mcp is an MCP server by ActiveCampaign. Official Postmark MCP server by ActiveCampaign — 24 tools to send, template, search, and diagnose transactional email from Claude, Cursor & other AI assistants. It has 59 GitHub stars and ranks #324 of 1809 in Productivity by stars.

Category: Productivity
Author: ActiveCampaign
GitHub stars: 59
This week: Tracking since 18 Oct 2026
Weekly downloads: 791
Language: JavaScript
License: MIT (open source)
Last update: 2026-10-23 (yesterday)
Links: Source Website npm

activecampaign
ai
claude
email
email-sender
mcp
model-context-protocol
postmark

How to install postmark-mcp

postmark-mcp is published on npm as @activecampaign/postmark-mcp, and it depends on @modelcontextprotocol/sdk. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add postmark-mcp -- npx -y @activecampaign/postmark-mcp

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "postmark-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@activecampaign/postmark-mcp"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm postmark-mcp and its tools are listed. The install guide covers VS Code and Codex.

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Maintain this project? Get it featured ($99/mo, pinned at the top of Productivity) or see what featuring includes.

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Frequently asked questions

What is postmark-mcp?

postmark-mcp is an MCP server by ActiveCampaign in the Productivity category. Official Postmark MCP server by ActiveCampaign — 24 tools to send, template, search, and diagnose transactional email from Claude, Cursor & other AI assistants. It has 59 GitHub stars and ranks #324 of 1809 in Productivity by stars.

Is postmark-mcp free and open source?

Yes. postmark-mcp is published under the MIT license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.