ValidKit Email Validation
@ValidKit
Validate emails from your AI coding assistant. Syntax checks, MX verification, disposable detection, developer pattern intelligence, and typo suggestions. 1,000 free validations/month.
Overview
ValidKit Email Validation MCP Server
Validate emails directly from your AI coding assistant. Works with Claude Code, Cursor, Windsurf, and any MCP-compatible tool.
Tools
- validate_email — Validate a single email address. Returns deliverability status, syntax/DNS/MX checks, disposable/role/free detection, and typo suggestions.
- validate_emails_bulk — Validate up to 1,000 emails in one request. Returns individual results and summary counts.
- check_usage — Check your API usage stats for the current period.
Features
- Developer pattern intelligence (test@, plus addressing, noreply@ detection)
- Disposable email detection (4,500+ domains)
- MX record verification
- <200ms median response time
- 30s request timeout with clear error messages
Quick Setup (Claude Code)
claude mcp add validkit -e VALIDKIT_API_KEY=vk_your_api_key -- npx -y @validkit/mcp-server
Get Your API Key
Free at validkit.com/get-started — 1,000 validations/month, no credit card required.
Server Config
{
"mcpServers": {
"validkit": {
"command": "npx",
"args": [
"-y",
"@validkit/mcp-server"
],
"env": {
"VALIDKIT_API_KEY": "<YOUR_API_KEY>"
}
}
}
}