How to Use the Mailinator MCP in Cursor

Q: Can Cursor use Mailinator to verify SMS workflows?

Yes. You can call listprivatesms to check incoming text messages. It’s useful for testing two-factor authentication or SMS-based alerts directly within your development cycle.

Write code that handles live email data in Cursor by testing your logic against disposable Mailinator inboxes.

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Connect Mailinator MCP to Cursor

Create your Vinkius account to connect Mailinator to Cursor 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 Mailinator with Cursor

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Claude

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Real-Time Inbox Debugging in Cursor

Stop guessing if your email service is working. Call `list_inbox_messages` directly from your editor to see if your code actually sent the expected notification. It gives you the raw data you need to fix bugs instantly. You’ll see the message structure, allowing you to adjust your parsing logic without leaving the IDE.

Test Email Logic Without Mocks

Use `inject_test_message` to push data into your application. It lets you test complex workflows against real API responses instead of static local files. Your agent can then call `get_message_content` to verify the output. It turns your testing process into a live feedback loop while you write code.

Manage Test Domains from Cursor

Check your domain settings with `list_private_domains` to ensure your test environment matches your staging setup. It avoids configuration drift before you deploy. Use `list_routing_rules` to verify how your mail is handled. You get full visibility into your email routing logic inside your active project workspace.

Setup guide

Set up Mailinator MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Mailinator MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Mailinator transactions." If the MCP tools are loaded correctly, Cursor will call the Mailinator tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

{
  "mcpServers": {
    "mailinator-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 Mailinator. 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.

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Common questions about Mailinator MCP in Cursor

Add the server to your .cursor/mcp.json file in the root of your project. Once you enable Agent mode, the tools become available for your AI to use.

The server only touches non-PII test data. It runs within your local project scope, ensuring that your real production emails remain completely isolated.

Yes. You can call `list_private_sms` to check incoming text messages. It’s useful for testing two-factor authentication or SMS-based alerts directly within your development cycle.

The server returns standard API responses. If a call fails, the tool output will show the specific error, allowing your agent to adjust or notify you immediately.

You can commit your .cursor/mcp.json to your repo. This ensures every developer on your team has access to the same testing tools for your project.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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