Postmark Connector for AI agents.

Q: Can I send a transactional email using my AI agent?

Yes! Use the sendemail action. Provide the sender and recipient details along with your subject and message body.

11 live capabilities

Manage transactional email delivery and templates from your AI client.

Live agent request Postmark / Connector

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AI Agent

Why people use Postmark

Postmark : Stop manual email tracking and bounce checking

This Connector puts that entire dashboard into your chat window. You can ask your agent to pull the latest delivery stats or list your recent bounces while you stay in your IDE. You get a direct line to your email infrastructure, letting you handle the boring admin work in seconds.

What Vinkius changes

You get a direct command line for your Postmark account inside any AI-compatible app.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 5,900+ Connectors

Real-world use case 01

Troubleshooting a failed signup

An engineer asks the agent to `list_bounces` to see why new users aren't getting their confirmation emails.
Real-world use case 02

Sending a bulk update

A product manager tells the agent to `send_batch_email` to notify 500 users about a scheduled maintenance window.
Real-world use case 03

Template verification

A developer uses `get_template` to check if the correct dynamic variables are set before they deploy a new welcome message.

Complete set · 11capabilities

The complete Postmark capability set.

These are the exact actions your AI can choose when you ask it to work with Postmark.

Capability set01 / 03

01—04

4 capabilities in this set.

Part of 11 available through Postmark.

01 Capability
List outbound messages
See a list of messages you've already sent. It helps you verify if a specific email actually left the system.
02 Capability
List account servers
View all the sending points linked to your account. Use this to see which ones are active for different regions.
03 Capability
List email templates
Pull a list of all your saved email templates. This makes it easy to find the right ID for your next campaign.
04 Capability
Send batch email
Send a large group of emails at once. It's the fastest way to handle bulk transactional notifications.

Capability set02 / 03

05—08

4 capabilities in this set.

Part of 11 available through Postmark.

05 Capability
Send email
Send a single transactional email. Use this for one-off actions like password resets or OTPs.
06 Capability
Get server info
Pull the specific configuration for one of your sending points. It's useful for checking your current limits.
07 Capability
Get delivery stats
Get a summary of how many emails were successfully delivered. Use this to monitor your overall reach.
08 Capability
Get outbound stats
See the stats for messages that actually left your system. This helps you differentiate between sent and delivered mail.

Capability set03 / 03

09—11

3 capabilities in this set.

Part of 11 available through Postmark.

09 Capability
Get template
Pull the details of a specific email template. You can use this to check the variables and content of a saved message.
10 Capability
List bounces
See a list of recent email bounces. This is your primary capability for finding out why messages aren't reaching inboxes.
11 Capability
List domains
See all the verified sending domains in your account. Use this to manage your sender reputation and white-listing.

Set up in minutes

One URL. Then ask Postmark to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Postmark from the conversation.

Choose your client

Live preview

Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP

https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp

Step 01

Open Connectors

In Claude Web or Claude Desktop, open Settings and choose Connectors.
Step 02

Add the URL

Choose Add custom connector, name it Postmark, and paste the URL above.
Step 03

Turn it on in chat

Select +, open Connectors, and enable Postmark for the conversation.

ChatGPT · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP

https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp

Step 01

Open MCP settings

On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
Step 02

Add the URL

Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Postmark URL.
Step 03

Save and start

Save the connection and enable Postmark in your conversation. Desktop may ask you to restart once.

Cursor · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended": {
      "url": "https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp"
    }
  }
}

Step 01

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
Step 02

Add the server config

Paste the JSON configuration above into the mcp.json file that opens
Step 03

Save the file

Cursor will automatically detect the new Connector
Step 04

Start using Postmark

Open Agent mode in chat and ask: "Using Postmark, help me...". 11 tools available

VS Code Copilot · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended": {
      "url": "https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp"
    }
  }
}

Step 01

Create MCP config

Create a .vscode/mcp.json file in your project root
Step 02

Add the server config

Paste the JSON configuration above
Step 03

Enable Agent mode

Open GitHub Copilot Chat and switch to Agent mode using the dropdown
Step 04

Start using Postmark

Ask Copilot: "Using Postmark, help me...". 11 tools available

Windsurf · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended": {
      "url": "https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp"
    }
  }
}

Step 01

Open MCP Settings

Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
Step 02

Add the server

Paste the JSON configuration above into mcp_config.json
Step 03

Save and reload

Windsurf will detect the new server automatically
Step 04

Start using Postmark

Open Cascade and ask: "Using Postmark, help me...". 11 tools available

Cline · IDE configuration

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "postmark-extended": {
      "url": "https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp"
    }
  }
}

Step 01

Open Cline MCP Settings

Click the Connectors icon in the Cline sidebar panel
Step 02

Add remote server

Click "Add Connector" and paste the configuration above
Step 03

Enable the server

Toggle the server switch to ON
Step 04

Start using Postmark

Ask Cline: "Using Postmark, help me...". 11 tools available

Claude Code · Terminal command

Official guide ↗

Advanced setup

claude mcp add postmark-extended --transport http "https://edge.vinkius.com/vk_preview_rE1ncdOU1hyevrM5yuhCR9r19X5fMfKJQWd5PGTM/mcp"

Step 01

Install Claude Code

Run npm install -g @anthropic-ai/claude-code if not already installed
Step 02

Add the Connector

Run the command above in your terminal
Step 03

Verify the connection

Run claude mcp to list connected servers, or type /mcp inside a session
Step 04

Start using Postmark

Ask Claude: "Using Postmark, show me...". 11 tools are ready

Where the request belongs

Work Postmark can move forward.

Built around the request

This is for developers and ops teams who need to manage high-volume transactional emails without constantly switching to a web dashboard.

Full-stack Developer

Sends test emails and checks template variables during a build without leaving the IDE.

Marketing Ops Manager

Monitors bounce rates and updates email templates on the fly to keep campaigns running.

Customer Success Lead

Investigates why a specific user didn't receive a critical account update by pulling bounce data.

Build the capability set

Each Connector adds new actions and data without changing how you work.

Browse Connectors

01 11 capabilities

Postmark

Automate transactional email delivery via Postmark. manage servers, templates, and bounces directly from any AI agent.

View Connector

02 12 capabilities

SendGrid

Deliver transactional and marketing emails at massive scale with industry-leading deliverability and real-time analytics.

View Connector

03 12 capabilities

UniOne

Send transactional and bulk emails with high deliverability, detailed analytics, and infrastructure that handles millions of messages.

View Connector

04 10 capabilities

SparkPost

Bring your SparkPost email delivery platform into your AI. Manage templates, send campaigns, and audit deliverability directly from your editor.

View Connector

05 12 capabilities

Mailjet

Deliver emails at scale with collaborative template editing, real-time monitoring, and deliverability analytics in one platform.

View Connector

Bring your own AI

Change the model, client or framework. Keep Postmark connected.

Claude
ChatGPT
Gemini
Cursor
VS Code
Windsurf
ZCode
Cline
Zed
Continue
Kiro
Roo Code
Zencoder
Goose
Void
Augment Code
Amp
Qodo
Tabnine
Pieces
Sourcegraph Cody
JetBrains
Warp
Amazon Q
Antigravity
BoltAI
Raycast
Jan
LM Studio
AnythingLLM
Open WebUI
Msty
Cherry Studio
LibreChat
TypingMind
Chorus
5ire
n8n
LangChain
LlamaIndex
CrewAI
Vercel AI SDK

Before you connect

Questions about Postmark.

The practical details behind the request, access and result.

Can I use the Postmark MCP to send emails from my AI client?

Yes, you can send single or batch emails directly through your AI agent. It handles the connection to Postmark for you.

Does the Postmark MCP help me track why emails are bouncing?

Yes, it pulls recent bounce data so you can see patterns and identify why messages aren't reaching their destination.

Can I manage my email templates with this Connector?

Yes, you can list all your templates or get specific details for a single template without leaving your workspace.

How do I check my server stats using the Postmark MCP?

You can pull delivery and outbound stats easily to monitor your reach and see how many messages were successfully delivered.

Can this Connector manage my Postmark account servers?

Yes, you can list your account's sending points and get specific configuration info to manage your infrastructure.

Is the Postmark MCP good for high-volume transactional mail?

Yes, it is designed specifically for transactional delivery and provides the capabilities needed to monitor high-volume flows.

Can I send a transactional email using my AI agent?

Yes! Use the send_email action. Provide the sender and recipient details along with your subject and message body.

One connection away

Give your agent a direct line to Postmark.

Connect Postmark once. Keep it beside 5,900+ managed Connectors when the next task needs more.

Explore every Connector No credit card required · Free tier available

Postmark : Stop manual email tracking and bounce checking

You get a direct command line for your Postmark account inside any AI-compatible app.

Troubleshooting a failed signup

Sending a bulk update

Template verification

List outbound messages

List account servers

List email templates

Send batch email

Send email

Get server info

Get delivery stats

Get outbound stats

Get template

List bounces

List domains

Open Connectors

Add the URL

Turn it on in chat

Open MCP settings

Add the URL

Save and start

Open MCP Settings

Add the server config

Save the file

Start using Postmark

Create MCP config

Add the server config

Enable Agent mode

Start using Postmark

Open MCP Settings

Add the server

Save and reload

Start using Postmark

Open Cline MCP Settings

Add remote server

Enable the server

Start using Postmark

Install Claude Code

Add the Connector

Verify the connection

Start using Postmark

Full-stack Developer

Marketing Ops Manager

Customer Success Lead

Postmark

SendGrid

UniOne

SparkPost

Mailjet

Give your agent a direct line to Postmark.