MCP Server

EmailVerify MCP Server — Email Verification for Claude, Cursor & Every AI Tool

EmailVerify MCP is an email verification MCP server that connects Claude, Cursor, VS Code, and 15+ AI tools directly to real-time email validation. Verify emails, find professional contacts, and clean bulk lists — without leaving your AI assistant. Works with any MCP-compatible client.

Get Your API Key GitHub Repository NPM Package

100 monthly credits included. No credit card required.

Overview

What is EmailVerify MCP?

Connect our enterprise-grade AI email validator directly to your AI assistant. As the best MCP server for email, it provides seamless professional workflows.

MCP (Model Context Protocol) is an open standard that lets AI assistants like Claude, Cursor, and VS Code directly call external tools and APIs — without copy-pasting or leaving the chat. Think of it as a universal plugin system for AI.

EmailVerify MCP bridges your AI assistant with our enterprise email verification engine. Just ask your AI naturally — "Is this email valid?" or "Find Sarah’s email at stripe.com" — and it calls the tool, gets the result, and replies instantly.

No copy-paste

Works in any MCP client

Sub-100ms responses

YOU

User Prompt

"Find John’s email at stripe.com"

MCP

Model Context Protocol

EmailVerify MCP Server — Email Verification for Claude, Cursor & Every AI Tool

Routes tool call to API

EmailVerify.io API

✓ [email protected] — valid

Quick Setup

Get Started in 60 Seconds

Configure your favorite AI IDE or chat client with one simple command.

Sign Up for EmailVerify

Create your free account to get 100 free verification credits monthly with no credit card required.

Get Your API Key

Generate your secure API Key from the dashboard. This key will be used to authenticate your AI assistant.

API Dashboard

Master Setup (One Command)

Run this command to validate your key and auto-configure Claude, Cursor, and other AI clients in seconds.

$ npx @emailverifyio/emailverify-mcp setup

Ready to Verify

Ask your AI naturally: 'Is this email valid?' or 'Find Sarah's email at stripe.com'. It just works.

Real-time validation SMTP verification Catch-all detection Disposable filter

Integration Guide (All MCP Clients)

Claude Code Integration

Active Client

Use the Claude Code CLI to add the server:

Terminal Command

$ claude mcp add emailverify -- npx -y @emailverifyio/emailverify-mcp

Claude Desktop Integration

Active Client

Add to your claude_desktop_config.json (Windows: %APPDATA%\Claude\, Mac/Linux: ~/.config/Claude/):

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Windsurf Integration

Active Client

Add via the settings screen or by updating your mcp_config.json file:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Zed Editor Integration

Active Client

Add the following to your settings.json:

JSON Config

{
  "node": {
    "mcp_servers": {
      "emailverify": {
        "command": "npx",
        "args": ["-y", "@emailverifyio/emailverify-mcp"]
      }
    }
  }
}

Cline Integration

Active Client

Add the standard config to your cline_mcp_settings.json file:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Amp Integration

Active Client

Add via the Amp VS Code extension settings screen or by updating your settings.json file:

JSON Config

"amp.mcpServers": {
  "emailverify": {
    "command": "npx",
    "args": ["-y", "@emailverifyio/emailverify-mcp"]
  }
}

Antigravity Integration

Active Client

Add via the Antigravity settings or by updating your configuration file:

JSON Config

"mcpServers": {
  "emailverify": {
    "command": "npx",
    "args": ["-y", "@emailverifyio/emailverify-mcp"]
  }
}

Copilot CLI Integration

Active Client

Use interactively or add to ~/.copilot/mcp-config.json:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

LM Studio Integration

Active Client

Enable the MCP server in LM Studio settings using the configuration below:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Qodo Gen Integration

Active Client

Open Qodo Gen chat panel > Connect more tools > + Add new MCP and paste the config below:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Warp Integration

Active Client

Go to Settings > AI > Manage MCP Servers > + Add and use the following configuration:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Junie Integration

Active Client

Add the following to your .junie/mcp/mcp.json:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Kiro Integration

Active Client

Add the following to your .kiro/settings/mcp.json:

JSON Config

{
  "mcpServers": {
    "emailverify": {
      "command": "npx",
      "args": ["-y", "@emailverifyio/emailverify-mcp"]
    }
  }
}

Live Examples

See it in action

Ask your AI naturally and watch it solve complex email tasks using EmailVerify tools.

Lead Discovery

find_email

Enterprise-grade lead discovery for AI teams.

Find professional email addresses with 98% confidence. Our AI uses a proprietary multi-layer algorithm that combines name permutations, MX record validation, and real-time SMTP handshakes to ensure every found contact is reachable. Perfect for sales teams and recruiters looking for direct access to decision-makers.

MCP

Architecture Standardized Model Context Protocol

YOU

"Find Sarah Miller's email at stripe.com"

✓ [email protected] — valid, found with 98% confidence

Risk Detection

validate_batch

Enterprise-grade risk detection for AI teams.

Clean lists of up to 100,000 emails in one go. The validate_batch tool handles large CSV and JSON payloads asynchronously, monitoring for bounces, catch-alls, and disposable domains while your AI continues the conversation. Once processed, your AI can automatically summarize the list quality for you.

MCP

Architecture Standardized Model Context Protocol

YOU

"Verify if this list of 50 signups is safe to send to"

✓ 46 valid • 2 disposable • 2 risky. Safe to proceed with 46 addresses.

Balance Check

get_balance

Enterprise-grade balance check for AI teams.

Real-time credit monitoring and account transparency. Instantly retrieve your remaining balance, daily usage limits, and API status without leaving your development environment or AI interface. This ensures zero interruptions during critical batch processing tasks or high-volume outreach campaigns.

MCP

Architecture Standardized Model Context Protocol

YOU

"How many credits do I have left?"

✓ You have 850 credits remaining. Your API status is active.

Quick Check

validate_email

Enterprise-grade quick check for AI teams.

Sub-100ms single email validation. Perfect for interactive forms or real-time intent checks, this tool performs comprehensive syntax, DNS, and mailbox-level checks to guarantee 99% deliverability. It's the most reliable way to prevent fake signups and typos in real-time within your AI assistant or agent workflow.

MCP

Architecture Standardized Model Context Protocol

YOU

"Is [email protected] a valid email?"

✓ [email protected] is valid and permitted for delivery.

Why EmailVerify MCP?

AI-Powered Email Verification Built for Scale

Stop switching tabs and manually cleaning email lists. EmailVerify MCP connects your AI tools directly to a real-time email verification engine—so every lead your real-time email validation AI agent generates is instantly validated before you ever use it.

No exports. No delays. No guesswork.

Built for AI Workflows (Not Manual Tools)
Unlike traditional email verification platforms, EmailVerify MCP is designed for AI agents, copilots, and automation workflows. Your AI can:

• Validate emails in real-time
• Filter out invalid, risky, or disposable addresses
• Ensure high deliverability before outreach starts

Sub-100ms Speed

Optimized for the speed of thought in AI conversations.

Role Detection

Detect support@, info@, and other role-based emails.

SMTP Verification

Real-time mailbox pings for the highest accuracy.

Catch-all Check

Identify domains that accept all mail and warn accordingly.

Disposable detection

Block temporary/throwaway email providers instantly.

FAQs

Frequently Asked Questions

What is the EmailVerify MCP server?

The EmailVerify MCP server is a Model Context Protocol (MCP) server that connects AI assistants directly to the EmailVerify.io email verification API. Instead of switching tabs or writing code, you simply ask your AI naturally — "Is this email valid?" or "Find Sarah's email at stripe.com" — and it handles the entire verification flow instantly. No copy-pasting, no manual API calls, no context switching.

Which AI clients are compatible with EmailVerify MCP?

EmailVerify MCP works with any AI client that supports the MCP standard. This includes Claude Desktop, Claude Code, Cursor, VS Code (with MCP extension), Windsurf, Zed Editor, Goose, Warp, LM Studio, Cline, Copilot CLI, and many more. If your AI tool supports MCP, it works out of the box. Check our Integration Guide above for step-by-step setup instructions for each client.

How can I install and configure the EmailVerify MCP server?

Installation takes under 60 seconds. Simply run npx @emailverifyio/emailverify-mcp setup in your terminal. The setup wizard will prompt you for your API key, validate it against the EmailVerify.io API, save your config locally, and optionally auto-configure your AI client — all in one step.

Do I need an API key to use EmailVerify MCP?

Yes, a free API key from EmailVerify.io is required. New accounts get 100 free monthly verification credits — no credit card needed. You can generate your key from the API dashboard, then pass it to the setup wizard when prompted.

What tools does the EmailVerify MCP server provide?

The server exposes 5 deterministic tools: validate_email for real-time single email verification with SMTP checks, validate_batch for submitting bulk email lists asynchronously, find_email for discovering professional contacts by name and domain, get_balance for checking your remaining EmailVerify.io credits, and get_bulk_results for polling results of completed bulk jobs.

Can I use EmailVerify MCP for bulk email validation inside my AI?

Absolutely. The validate_batch tool lets your AI submit a list of emails for asynchronous bulk processing — perfect for cleaning large mailing lists or validating CRM data. Simply say "Validate this list of emails" and pass the addresses. Your AI will submit the job, then use get_bulk_results to fetch and summarize the results once processing is complete.

What is MCP (Model Context Protocol) and how does it work?

MCP (Model Context Protocol) is an open standard that allows AI assistants like Claude to connect to external tools and data sources. It works by having the AI act as a client and our EmailVerify MCP server providing specialized tools (like real-time email validation and discovery) that the AI can call seamlessly during a conversation.

How do I verify emails inside Claude Desktop?

By using our Claude email verification plugin integration, you simply add EmailVerify MCP to your claude_desktop_config.json using the npx emailverify setup tool. Once connected, you can naturally ask Claude Desktop to check if an email is valid, and it will use our API automatically.

Can I use an email verification MCP with Cursor or VS Code?

Yes! EmailVerify MCP is a native Cursor email validation tool. For Cursor or VS Code, you can add it via their MCP settings panel. This allows you to verify emails, find contacts, or clean lists directly inside your coding environment.

Is EmailVerify MCP free?

The MCP server itself is completely free to install and use. You only need a free EmailVerify.io account, which includes 100 free verification credits every month to start checking emails.

How does EmailVerify MCP compare to using the API directly?

While the API requires writing code to integrate into your app, the email verification MCP server connects directly to your AI assistant without any coding. It exposes our deterministic tools to LLMs, letting you leverage our engine purely through natural language. Looking for the package? Search for emailverify MCP npm.

Does EmailVerify MCP work with AI agents and automated workflows?

Absolutely. It is an ideal real-time email validation AI agent tool. Automated workflows and agents can use it to programmatically filter out risky or invalid addresses before conducting outreach campaigns.

What happens if my email credits run out during an AI session?

Your AI assistant will receive a clear JSON message indicating that credits are depleted. You can easily query your remaining balance using the integrated Account Check tool without leaving your session.

Is SMTP verification supported via MCP?

Yes, our MCP email tool performs deep, real-time SMTP verification, MX record checks, and mailbox pinging for the highest accuracy, ensuring that the AI never hallucinates contact data.

You're just one click away from clean email lists.

Start verifying your email addresses instantly and improve your campaign deliverability

Talk to Sales

* No credit card required

EmailVerify MCP Server — Email Verification for Claude, Cursor & Every AI Tool

What is EmailVerify MCP?

Get Started in 60 Seconds

Sign Up for EmailVerify

Get Your API Key

Master Setup (One Command)

Ready to Verify

Integration Guide (All MCP Clients)

Claude Code Integration

Cursor Integration

Claude Desktop Integration

VS Code Integration

Windsurf Integration

Zed Editor Integration

Cline Integration

Amp Integration

Antigravity Integration

Copilot CLI Integration

LM Studio Integration

Qodo Gen Integration

Warp Integration

Junie Integration

Kiro Integration

Goose Integration

See it in action

Lead Discovery

Risk Detection

Balance Check

Quick Check

Why EmailVerify MCP?

Sub-100ms Speed

Role Detection

SMTP Verification

Catch-all Check

Disposable detection

Frequently Asked Questions

You're just one click away from clean email lists.