MCP For Claude Marketplace
MailerCheck

MailerCheck MCP Connector for Claude

A+

Verify and validate email addresses in real-time or batch via the MailerCheck REST API.

5 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect your MailerCheck account to any AI agent to automate your email hygiene and deliverability workflows. This MCP server enables your agent to verify single email addresses instantly, manage batch verification lists, and monitor your account credits directly from natural language interfaces.

What you can do

  • Real-time Verification — Instantly check if an email address is valid, risky, or invalid before sending
  • Batch Processing — Upload large lists of emails for asynchronous validation and track their progress
  • Results Ingestion — Retrieve detailed status reports for completed batches, including reason codes for invalid emails
  • History Oversight — List all recent verification batches and retrieve their technical metadata
  • Account Auditing — Monitor your authenticated user details and remaining verification credits

How it works

  1. Subscribe to this server
  2. Enter your MailerCheck API Token
  3. Start validating your email lists from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Email Marketers — Maintain high sender reputation by cleaning contact lists via simple natural language commands
  • Sales & Outreach Teams — Instantly verify lead emails before reaching out to minimize bounce rates
  • Growth Engineers — Integrate email validation logic and batch monitoring directly into your development tools
email-verificationdeliverabilitysender-reputationdata-hygienevalidation-api

5 tools expose this connector's capabilities to your AI agent.

get_account_info

Get account details and credit balance

get_batch_results

Retrieve the results for a specific batch

list_verification_batches

List all recent verification batches

create_verification_batch

Requires a name and a list of emails. Upload a list of emails for batch verification

verify_single_email

Requires an email string. Verify a single email address in real-time

See how to talk to your AI agent using MailerCheck.

Verify the email address 'user@example.com' in MailerCheck.

I've checked the address. 'user@example.com' is marked as 🟢 VALID. You can safely send to this recipient.

List all my recent verification batches.

I've retrieved your batches. You have 3 recent jobs: 'Main Website Leads (ID: 123)', 'Old CRM Export', and 'Newsletter Cleanup'. Would you like to see the results for any of them?

Show valid emails for batch ID '123'.

I've queried the results for batch 123. There are 45 valid email addresses, including 'admin@corp.com' and 'sales@firm.io'. I've filtered out risky and invalid results.

MailerCheck uses advanced multi-layer checks including syntax, DNS, and SMTP handshake to provide highly accurate results categorized into valid, risky, and invalid.

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