ValidKit Email Validation MCP Server

@ValidKit

Repository Homepage

Basic information

About ValidKit Email Validation MCP Server

MCP server for ValidKit email validation. Works with Claude Code, Cursor, Windsurf, and any MCP-compatible AI assistant

#email-validation #email-verification #mcp #claude #cursor #windsurf #developer-tools

ValidKit Email Validation MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "validkit": {
      "command": "npx",
      "args": [
        "-y",
        "@validkit/mcp-server"
      ],
      "env": {
        "VALIDKIT_API_KEY": "<YOUR_API_KEY>"
      }
    }
  }
}

ValidKit Email Validation MCP Server tools

Validate a single email address. Returns deliverability status, syntax/DNS/MX checks, disposable/role/free detection, and typo suggestions.

Validate multiple email addresses in a single request (up to 1000). Returns individual results and a summary with valid/invalid/unknown counts.

Check your ValidKit API usage stats for the current period. Returns total requests, valid/invalid counts, average response time, and rate limit.

Overview

What is ValidKit Email Validation?

ValidKit Email Validation is a Model Context Protocol (MCP) server that integrates the ValidKit email validation API into AI assistants like Claude Code, Cursor, Windsurf, and Claude Desktop. It performs syntax checks, MX record verification, disposable email detection, and typo suggestions directly from the editor.

How to use ValidKit Email Validation?

Install by adding the server configuration to your MCP client (Claude Code, Cursor, Windsurf, or Claude Desktop) using npx -y @validkit/mcp-server and setting the VALIDKIT_API_KEY environment variable. Invoke tools like validate_email, validate_emails_bulk, or check_usage via natural language commands.

Key features of ValidKit Email Validation

Syntax, MX, and DNS email validation
Disposable, role, and free email detection
Typo suggestions for common misspellings
Bulk validation of up to 1,000 emails per request
Usage statistics and rate limit monitoring
Works with any MCP-compatible AI assistant

Use cases of ValidKit Email Validation

Validate a single email address during development or customer support
Clean bulk email lists before sending campaigns
Check API usage and remaining quota from within an editor
Automate email verification in AI‑powered workflows

Frequently asked questions

What does ValidKit Email Validation check?

It checks email syntax, DNS records, MX server existence, and detects disposable, role‑based, and free email addresses. It also suggests typo corrections.

What are the dependencies and runtime requirements?

Node.js is required to run the server via `npx`. A ValidKit API key is mandatory; sign up at validkit.com/get-started for a free tier with 1,000 validations per month.

Where does email data get processed?

Email addresses are sent to the ValidKit API (default: `https://api.validkit.com`) for validation. No data is stored locally by the MCP server.

Are there any limits on usage?

The free plan includes 1,000 validations per month. The `validate_emails_bulk` tool accepts up to 1,000 emails per request. Rate limits apply per API key.

How is the server accessed and authenticated?

The server runs locally via stdio transport using `npx`. Authentication is handled by the `VALIDKIT_API_KEY` environment variable. No additional auth mechanisms are required.

Comments

More Communication MCP servers

Atomic Mail Agentic

Atomic-Mail

Let your agents read, send and react to email autonomously, without human involvement

255

LinkedIn MCP Server: DMs, Inbox & Network for Claude, ChatGPT, Cursor

TalkToHumans

LinkedIn MCP server for Claude, ChatGPT, Cursor & Codex. Read LinkedIn DMs, search your network, enrich profiles and draft messages you review before sending.

Mobile Text Alerts SMS

Mobile Text Alerts

Official Mobile Text Alerts server. Send and schedule SMS, manage subscribers and groups, and complete carrier registration from any MCP-compatible AI assistant.

gtm-api

MCP server and API for AI agents that work LinkedIn on accounts you own: search, connect, message and enrich, with limits enforced on our server.

2pr.io

Write, schedule and publish LinkedIn posts in your own voice, reply to comments and read your analytics, all from your AI assistant. Remote MCP server with OAuth sign-in.