ValidKit Email Validation
@ValidKit
About ValidKit Email Validation
MCP server for ValidKit email validation. Works with Claude Code, Cursor, Windsurf, and any MCP-compatible AI assistant
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>"
}
}
}
}Tools
3Validate 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
FAQ from ValidKit Email Validation
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.
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.
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