MailerCheck MCP Server
Verify and validate email addresses in real-time or batch via the MailerCheck REST API.
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What is the MailerCheck MCP Server?
The MailerCheck MCP Server gives AI agents like Claude, ChatGPT, and Cursor direct access to MailerCheck via 5 tools. Verify and validate email addresses in real-time or batch via the MailerCheck REST API. Powered by the Vinkius - no API keys, no infrastructure, connect in under 2 minutes.
Built-in capabilities (5)
Tools for your AI Agents to operate MailerCheck
Ask your AI agent "Verify the email address 'user@example.com' in MailerCheck." and get the answer without opening a single dashboard. With 5 tools connected to real MailerCheck data, your agents reason over live information, cross-reference it with other MCP servers, and deliver insights you would spend hours assembling manually.
Works with Claude, ChatGPT, Cursor, and any MCP-compatible client. Powered by the Vinkius - your credentials never touch the AI model, every request is auditable. Connect in under two minutes.
Why teams choose Vinkius
One subscription gives you access to thousands of MCP servers - and you can deploy your own to the Vinkius Edge. Your AI agents only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure and security, zero maintenance.
Build your own MCP Server with our secure development framework →Vinkius works with every AI agent you already use
…and any MCP-compatible client
MailerCheck MCP Server capabilities
5 toolsRequires a name and a list of emails. Upload a list of emails for batch verification
Get account details and credit balance
Retrieve the results for a specific batch
List all recent verification batches
Requires an email string. Verify a single email address in real-time
What the MailerCheck MCP Server unlocks
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
Frequently asked questions about the MailerCheck MCP Server
What is the accuracy of MailerCheck verification?
MailerCheck uses advanced multi-layer checks including syntax, DNS, and SMTP handshake to provide highly accurate results categorized into valid, risky, and invalid.
Can I verify large lists of emails?
Yes, use the create_verification_batch tool to upload a JSON array of email addresses. You can then monitor the progress and retrieve results once completed.
How do I check my remaining credits?
Use the get_account_info tool to retrieve your profile details and the current balance of verification credits in your account.
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Connect MailerCheck with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
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Give your AI agents the power of MailerCheck MCP Server
Production-grade MailerCheck MCP Server. Verified, monitored, and maintained by Vinkius. Ready for your AI agents — connect and start using immediately.