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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use MailerCheck with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Verify and validate email addresses in real-time or batch via the MailerCheck REST API.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 5 capabilities

The complete MailerCheck capability set.

These are the exact actions your AI can choose when you ask it to work with MailerCheck.

Capability set01 / 02

01-03

3 capabilities in this set.

Part of 5 available through MailerCheck.

  1. 01

    List verification batches

    List all recent verification batches

  2. 02

    Verify single email

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

  3. 03

    Get account info

    Get account details and credit balance

Capability set02 / 02

04-05

2 capabilities in this set.

Part of 5 available through MailerCheck.

  1. 04

    Create verification batch

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

  2. 05

    Get batch results

    Retrieve the results for a specific batch

Observed, not estimated

897ms average. Fast in production.

MailerCheck is checked daily against the live service.

Daily averagePeak 1126ms
Aug 20Today
Fastest day
710ms
Slowest day
1126ms
14-day trend
Slowing+23%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 5 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of MailerCheck, so you can see the experience inside your AI.

It does not authenticate your account with MailerCheck. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

MailerCheck Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_bReO4JgixfNfr2miQG0Lc9UB76MtllaR3Xy06Fz5/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — MailerCheck capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "mailercheck-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_bReO4JgixfNfr2miQG0Lc9UB76MtllaR3Xy06Fz5/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions MailerCheck owners ask.

  • 01

    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.

  • 02

    Can I verify large lists of emails?

    Yes, use the create_verification_batch capability to upload a JSON array of email addresses. You can then monitor the progress and retrieve results once completed.

  • 03

    How do I check my remaining credits?

    Use the get_account_info capability to retrieve your profile details and the current balance of verification credits in your account.

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