How to Use the MailerCheck MCP in Claude Code

Pipe MailerCheck validation directly into your terminal pipelines with Claude Code.

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Connect MailerCheck MCP to Claude Code

Create your Vinkius account to connect MailerCheck to Claude Code 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 Claude Code

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Headless Batch Verification

Running list hygiene shouldn't require clicking through a web dashboard. You can trigger massive validation jobs right from your command line using the MCP protocol. Claude Code takes your local CSV, parses the addresses, and fires them into `create_verification_batch`. You can set up a cron job that runs this exact sequence every night at midnight.

Automated Result Fetching via Claude Code

Kicking off a job is only half the battle. You need those results back in your system without manual intervention. Your headless agent uses `list_verification_batches` to find the latest job ID. It then runs `get_batch_results`, pipes the clean data into jq, and updates your staging environment automatically.

Real-Time Checks and Balance Alerts

Sometimes a support ticket requires checking exactly one problematic user. You don't need to write a custom curl request to figure out why their welcome email bounced. Type your prompt, and the agent executes `verify_single_email` instantly. It can also run `get_account_info` to alert your Slack channel if your monthly verification credits drop below a specific threshold.

Setup guide

Set up MailerCheck MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see mailercheck-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest MailerCheck transactions." It will automatically discover and invoke the available MailerCheck tools.

Terminal

claude mcp add --transport http mailercheck-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Get your connection token →

Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the MailerCheck MCP

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

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "mailercheck-mcp": {
      "type": "url",
      "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 Claude Code

Run the add command with your transport flags and the server URL. Make sure all your flags precede the server name. Verify the installation by listing your active connections.

Yes. You can embed the command in a GitHub Action. The agent will execute the batch creation and poll for results autonomously.

Ask your CLI agent to fetch your stats. It runs the account info tool and returns your credit limits directly to standard output.

You just pipe the address to the agent. It runs the single verification check and returns the exact status without you ever leaving your shell.

The data payload contains only your raw email addresses and passes through a stateless MCP execution layer. Vinkius requires only one endpoint token, and the sandbox drops all traffic logs the moment the process terminates.

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