Is the Postmark MCP server free?

Yes. Activepieces is open source and free to start, and the MCP server is included on every plan, from the free cloud tier to any self-hosted deployment.

How do I connect Postmark to Claude or Cursor?

Connect Postmark in Activepieces, enable the server under Settings → MCP Server, then paste your server URL into your client config. It authenticates over OAuth on first use.

What can my agent do in Postmark?

It can call 5 tools, including Send Email, Send Email With Template, Get Email Bounces, and chain them with steps in other apps inside the same run.

Is it safe to let an agent call Postmark?

Connections use OAuth2 with limited scopes and are stored under 256-bit encryption, with no API to read them back, so an agent gets scoped access rather than your keys.

Postmark MCP server

Transactional email platform for sending email, templates, and retrieving delivery and bounce insights.

Postmark is not a separate install. One Activepieces MCP server exposes it alongside 760+ other apps, behind a single URL.

Start building See the Postmark integration

Tools: 5
Works with: Any MCP client
Auth: API key
License: MIT, open source
Updated: September 2026

About the Postmark MCP server

Connect Postmark once in Activepieces and every action it ships becomes a tool your assistant can call, behind the same server URL as the rest of your apps. Your agent reaches Postmark and 760+ other apps over a single connection, on our cloud or a self-hosted install.

Tools

Postmark tools your AI can run

Once connected, your assistant can call any of these Postmark actions by asking in plain language.

Send Email
Send a single transactional email using Postmark.
11 fields
Send Email With Template
Send an email using a Postmark template ID and template model.
10 fields
Get Email Bounces
List bounces from your Postmark server.
6 fields
Get Delivery Stats
Retrieve delivery statistics for the current Postmark server.
Custom API Call
Make a custom API call to a specific endpoint
10 fields

Give your assistant Postmark

Connect Postmark once and every tool above is callable from Claude, Cursor or any MCP client, behind the same server URL as 760+ other apps. Free to start.

Get your server URL Talk to sales

Postmark MCP, answered.

No. That is the point of it. One Activepieces server exposes Postmark alongside every other piece you connect, so your client keeps a single connection.