How to Use the MailerSend MCP in Claude

Q: How do I configure MailerSend inside Claude Desktop?

Open your claudedesktopconfig.json file. Add the MailerSend MCP server configuration under the mcpServers key with your Vinkius token, then restart the app.

Q: Can Claude Desktop send HTML email templates through MailerSend?

Yes. You can instruct your client to use sendtransactionalemail and pass either raw HTML or a template ID in the JSON payload.

Send transactional emails and check domain status right from your Claude Desktop MCP client.

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Connect MailerSend MCP to Claude Desktop

Create your Vinkius account to connect MailerSend to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup MailerSend with Claude Desktop

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Send transactional emails right from your Claude Desktop chat

Stop writing curl scripts to test transactional emails in Claude Desktop. When you connect this MCP server to Claude Desktop, you can ask your client to fire off a test message to a user or dispatch a whole batch using `send_transactional_email` or `send_bulk_transactional_emails` without leaving the chat window. The local setup runs via stdio, letting Claude Desktop talk directly to the MailerSend API. You can quickly verify MailerSend payload shapes and check how your HTML templates render in Claude Desktop by sending real runs to your own inbox.

Monitor MailerSend domain health and activity logs

Keep tabs on your MailerSend sender reputation without reloading the browser by asking Claude Desktop to pull live metrics. Ask Claude Desktop to pull live activity logs using `list_domain_activity` and see exactly which messages bounced or got delivered. If you are setting up a new domain, let your Claude Desktop client trigger DNS verification checks with `verify_sender_domain`. Claude Desktop reads the status through `get_sender_domain_details` so you know exactly when your MailerSend MX and SPF records are green.

Manage recipient lists and track delivery details

Dig into MailerSend recipient histories directly through your Claude Desktop interface. The Claude Desktop client calls `get_recipient_details` and `list_email_recipients` to parse which of your MailerSend contacts are active, unsubscribed, or bouncing. When a user complains about a missing password reset, don't hunt through database logs when Claude Desktop can query MailerSend directly. Have Claude Desktop call `get_sent_message_details` to find the exact delivery timestamp and SMTP response.

Setup guide

Set up MailerSend MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The MailerSend MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the MailerSend MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under mailersend-mcp.

json

{
  "mcpServers": {
    "mailersend-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by MailerSend. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

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Common questions about MailerSend MCP in Claude Desktop

Open your claude_desktop_config.json file. Add the MailerSend MCP server configuration under the mcpServers key with your Vinkius token, then restart the app.

Yes. You can instruct your client to use send_transactional_email and pass either raw HTML or a template ID in the JSON payload.

Just ask Claude Desktop to check your domain. The client will trigger verify_sender_domain and use get_sender_domain_details to return the DNS record status.

Yes. You can feed a list of recipient addresses to your client and it will execute send_bulk_transactional_emails to dispatch them in one API call.

Vinkius runs this MCP server inside an isolated, zero-trust V8 sandbox. Your recipient emails and domain configurations are processed ephemerally, meaning no message bodies or contact lists are ever stored on Vinkius servers.

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