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Verify email addresses with MX checking. Free. No API key. Use when user ask "is email valid", "check if email is real".
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
| name | email_validation |
| description | Verify email addresses with MX checking. Free. No API key. Use when user ask "is email valid", "check if email is real". |
Real-time email address verification with MX record checking.
https://mailvalidate.org/api/validate| Parameter | Type | Description |
|---|---|---|
| string | Email address to validate |
https://disposableemailchecker.com/api/check{
"email": "test@example.com",
"valid": true,
"format_valid": true,
"domain_valid": true,
"mx_records": ["mail.example.com"],
"is_disposable": false,
"is_free_provider": false
}
15-30x vs LLM reasoning for email validation.
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