How to Use the MailerCheck MCP in Cursor

Build email validation into your codebase by letting Cursor hit the MailerCheck API while you write logic.

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Connect MailerCheck MCP to Cursor

Create your Vinkius account to connect MailerCheck 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 MailerCheck with Cursor

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Claude

Perplexity

Live verification testing inside Cursor

Validating user input live in your editor works by calling `verify_single_email` during development. Switch on Agent mode and let the MCP server get a real response from the provider to write your error handling logic. Mock data hides bugs. Hitting the live endpoint ensures your validation rules match what the backend actually returns. You catch parsing errors before committing the code.

Test bulk processing scripts locally

Testing bulk processing scripts locally means triggering `create_verification_batch` with a small sample array. It will queue the job and let you test the asynchronous flow right in your IDE. After a few minutes, poll the endpoint using `get_batch_results`. The MCP Server returns the payload, allowing the AI to write the exact JSON parsing logic you need for production.

Check API quotas without leaving the editor

Pulling your current credit balance with `get_account_info` keeps shared development environments under budget. It brings your current limits directly into your chat panel. Burning through your team's budget on a test script is a bad look. Checking the balance takes two seconds and prevents angry Slack messages from your manager.

Setup guide

Set up MailerCheck 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 MailerCheck 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 MailerCheck transactions." If the MCP tools are loaded correctly, Cursor will call the MailerCheck tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

{
  "mcpServers": {
    "mailercheck-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 MailerCheck. 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 MailerCheck MCP in Cursor

Create an configuration file in your project root or global directory. Add the MCP server command and arguments, then enable Agent mode in the chat interface.

Yes. The agent pulls live responses from the API. It can then generate unit tests based on the actual JSON structure returned by the verification endpoints.

Just ask the AI to run the list batches tool. It will output an array of your recent jobs. You can then copy the batch ID to fetch specific results.

Bulk processing happens asynchronously on the backend. You have to wait a few minutes and check the status again. It rarely finishes instantly.

The integration only transmits the specific email strings you provide to the API. Your codebase and environment variables stay on your machine, and the V8 isolate sandbox ensures the server cannot exfiltrate your contact lists elsewhere.

Use it with your favorite AI tools

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

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